DERO HE BlockChain Explorer(v1)

Transaction Details

SMART CONTRACT

Transaction Hash

a2ad0298edf77d84e1aeac4c9a368dd7a8448237610779016dd99b19c5a5d691

Block Status

Smart Contract State

SCID Reserves

SCID	Amount (Atomic Units)
0000000000000000000000000000000000000000000000000000000000000000	0

String Variables

Key	Value
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created_at	1.788552836e+09
min_deposit	24000
reg:13002e5908f6c35092896652a911a64c77157d224a6b552e693b2d2d5b363d8501	62623764646439326636323162376262623364363763346338646166633836343432316437613062393364353736623532653437313234323539656161396434

Transaction Information

Built BLID

Root Hash

Built Height

7572214

Block

7572217

Timestamp

1788552836520

Timestamp (UTC)

2026-09-04 20:13:56

Block Age

10h 06m ago

Fee

0.09564

TX Size

7.821 kB

Version

Confirmations

1960

Signature Type

DERO_HOMOMORPHIC

DERO Asset

Ring Size

0.09564

Fees

0.00000

Deposited

Sender

dero1qy8p636k68gmgn09w4j44nktecsm6tvx92tp3fct6hs725chmvqpkqqrs3slr

Ring Members (2)

Ring Member Address
dero1qyp0uze58vejgdps482x6694z4nmxd63awy87kl6wfu8q6m44qs95qgdwhyfr
dero1qy8p636k68gmgn09w4j44nktecsm6tvx92tp3fct6hs725chmvqpkqqrs3slr

Smart Contract Details

SC Balance

0.00000 DERO

Smart Contract Code

// ==========================================================================
// DEROTARY - DIRECTORY
// One SCID for the whole network. DVM-BASIC. ASCII only.
//
// TWO JOBS, AND WHY THEY SHARE A CONTRACT
//
// 1. Address -> registry. A TELA app in a browser has DERO.GetSC, which
// needs a SCID it already knows, and no way to enumerate contracts. Given
// only a wallet address, there is no path to that notary's registry
// without a well-known place to look it up. This is that place, and its
// SCID is the one thing the front end hardcodes.
//
// 2. Third-party reports. A notary will never file his own LAPSED acts in
// his own registry. Anyone must be able to put them on the record - a
// party whose act was left uncertified most of all. That path cannot live
// in the notary's contract, so it lives here.
//
// SPAM, PER PATH
//
// SetRegistry is authenticated by SIGNER(), so a caller can only ever write
// under his own address, and only once. Spam is not filtered on this path -
// it is impossible, and the map stays one entry per notary forever.
//
// MEASURED, AND LOAD-BEARING: at ringsize > 2 SIGNER() does not fail. It
// returns the ZERO address, rendered by HEX() as 66 zeros. Without the guard
// on line 20, a large-ring call would claim the entry "reg:<66 zeros>" - a
// real, permanent slot that belongs to no one and that any other large-ring
// caller would also resolve to. The guard refuses it outright.
//
// Report is permissionless and anonymous. It has to be: the person filing a
// notary's default is often a party to that act, and forcing SIGNER() would
// expose the address of exactly the person this path protects. Anonymity
// means no authentication, so any address can be named in a report - the
// reader is what makes a report true, by fetching the act and checking its
// "notary" key.
//
// Verification already neutralises defamation and self-inflation. It does
// not stop dilution: flooding an address with hundreds of bogus SCIDs so the
// reader must fetch them all. The deposit is what makes that cost money.
//
// A REPORT THAT LANDS KEEPS ITS DEPOSIT. There is no refund path: refunding
// a stored report would need the sender's address, so SIGNER(), so ringsize
// 2 - which would deanonymise the reporter. The deposit stays with the
// contract, and that is what makes dilution cost money.
//
// A REPORT THAT DOES NOT LAND IS REFUNDED, by returning non-zero. Measured
// with probe-deposit.sh: on this chain a non-zero RETURN sends the deposit
// back to the caller. The deterrent is unaffected, because it applies to
// entries that actually get written, not to calls that fail - so there is no
// reason to charge someone for underpaying or for filing a duplicate
// somebody else already filed.
//
// Note on the v1 Derotary note, which records a deposit as DESTROYED by a
// non-zero RETURN: that observation was made with a TOKEN (ASSETVALUE), not
// with DERO. Both can be true at once. This contract only ever receives
// DERO, so the measured DERO behaviour is the one that governs here. Any
// future function that accepts an asset must be re-measured before relying
// on a refund.
//
// NO REGISTRY REPLACEMENT. reg:<addr> is written once and never again. A
// notary who loses his wallet loses the ability to extend his index, not the
// index: everything already filed stays readable and verifiable, and the
// address remains something he can hand to a client.
//
// NO ADDRESS PARSING. notary_hex is only ever a string used to build a key.
// NO UPDATE PATH: no function calls UPDATE_SC_CODE.
//
// KEY MAP
// created_at                Uint64  deploy timestamp
// min_deposit               Uint64  atomic units required by Report
// reg:<addr>                String  that notary's registry SCID, write-once
// tn:<addr>                 Uint64  reports filed against <addr>
// ti:<addr>:<seq>           String  scid, seq from 0 to tn-1
// seen:<addr>:<scid>        Uint64  1, deduplication
//
// ERROR CODES
// 0 success
// 6 report deposit below min_deposit - the deposit is refunded
// 7 duplicate: a registry is already set, or this report already exists -
// for a report, the deposit is refunded
// ==========================================================================

// THE DEPOSIT IS SET ONCE, HERE, FOR EVERY USER OF THIS DIRECTORY. No
// function changes it, so the number below is the one this network lives with.
//
// 24 000 atomic units is not arbitrary: it is what the chain charges to store
// an act contract, measured at 1.5 units per source byte. A report is a claim
// ABOUT an act, and if making the claim cost less than issuing the act, burying
// a notary under noise would be cheaper than the work it accuses him of. Tying
// the two together is the only anchor available that does not depend on a price
// somebody guessed.
//
// It was 10 000 while the design was being measured on a simulator, where
// nobody has any interest in dilution.
Function Initialize() Uint64
10 STORE("created_at", BLOCK_TIMESTAMP())
20 STORE("min_deposit", 24000)
30 RETURN 0
End Function

// Publishes the caller's registry. Requires ringsize 2. Write-once: a second
// call is refused, so the map cannot be hijacked or quietly repointed.
Function SetRegistry(scid String) Uint64
10 DIM k as String
20 IF HEX(SIGNER()) == "000000000000000000000000000000000000000000000000000000000000000000" THEN GOTO 70
30 LET k = "reg:" + HEX(SIGNER())
40 IF EXISTS(k) THEN GOTO 70
50 STORE(k, scid)
60 RETURN 0
70 RETURN 7
End Function

// Files an act against a notary who did not declare it. Anonymous: no
// SIGNER() on this path, so the reporter keeps a full ring.
//
// Underpaid (6) and duplicate (7) both return non-zero, which refunds the
// deposit. Only a report that is actually written pays.
Function Report(notary_hex String, scid String) Uint64
10 DIM s as String
20 DIM seq as Uint64
30 IF DEROVALUE() >= LOAD("min_deposit") THEN GOTO 50
40 RETURN 6
50 LET s = "seen:" + notary_hex + ":" + scid
60 IF EXISTS(s) THEN GOTO 140
70 LET seq = 0
80 IF EXISTS("tn:" + notary_hex) THEN GOTO 100
90 GOTO 110
100 LET seq = LOAD("tn:" + notary_hex)
110 STORE("ti:" + notary_hex + ":" + seq, scid)
120 STORE(s, 1)
130 STORE("tn:" + notary_hex, seq + 1)
135 RETURN 0
140 RETURN 7
End Function

Smart Contract Arguments

Name	Type	Value
SC_ACTION	uint64	1
SC_CODE	string	"// ========================================================================== // DEROTARY - DIRECTORY // One SCID for the whole network. DVM-BASIC. ASCII only. // // TWO JOBS, AND WHY THEY SHARE A CONTRACT // // 1. Address -> registry. A TELA app in a browser has DERO.GetSC, which // needs a SCID it already knows, and no way to enumerate contracts. Given // only a wallet address, there is no path to that notary's registry // without a well-known place to look it up. This is that place, and its // SCID is the one thing the front end hardcodes. // // 2. Third-party reports. A notary will never file his own LAPSED acts in // his own registry. Anyone must be able to put them on the record - a // party whose act was left uncertified most of all. That path cannot live // in the notary's contract, so it lives here. // // SPAM, PER PATH // // SetRegistry is authenticated by SIGNER(), so a caller can only ever write // under his own address, and only once. Spam is not filtered on this path - // it is impossible, and the map stays one entry per notary forever. // // MEASURED, AND LOAD-BEARING: at ringsize > 2 SIGNER() does not fail. It // returns the ZERO address, rendered by HEX() as 66 zeros. Without the guard // on line 20, a large-ring call would claim the entry "reg:<66 zeros>" - a // real, permanent slot that belongs to no one and that any other large-ring // caller would also resolve to. The guard refuses it outright. // // Report is permissionless and anonymous. It has to be: the person filing a // notary's default is often a party to that act, and forcing SIGNER() would // expose the address of exactly the person this path protects. Anonymity // means no authentication, so any address can be named in a report - the // reader is what makes a report true, by fetching the act and checking its // "notary" key. // // Verification already neutralises defamation and self-inflation. It does // not stop dilution: flooding an address with hundreds of bogus SCIDs so the // reader must fetch them all. The deposit is what makes that cost money. // // A REPORT THAT LANDS KEEPS ITS DEPOSIT. There is no refund path: refunding // a stored report would need the sender's address, so SIGNER(), so ringsize // 2 - which would deanonymise the reporter. The deposit stays with the // contract, and that is what makes dilution cost money. // // A REPORT THAT DOES NOT LAND IS REFUNDED, by returning non-zero. Measured // with probe-deposit.sh: on this chain a non-zero RETURN sends the deposit // back to the caller. The deterrent is unaffected, because it applies to // entries that actually get written, not to calls that fail - so there is no // reason to charge someone for underpaying or for filing a duplicate // somebody else already filed. // // Note on the v1 Derotary note, which records a deposit as DESTROYED by a // non-zero RETURN: that observation was made with a TOKEN (ASSETVALUE), not // with DERO. Both can be true at once. This contract only ever receives // DERO, so the measured DERO behaviour is the one that governs here. Any // future function that accepts an asset must be re-measured before relying // on a refund. // // NO REGISTRY REPLACEMENT. reg:<addr> is written once and never again. A // notary who loses his wallet loses the ability to extend his index, not the // index: everything already filed stays readable and verifiable, and the // address remains something he can hand to a client. // // NO ADDRESS PARSING. notary_hex is only ever a string used to build a key. // NO UPDATE PATH: no function calls UPDATE_SC_CODE. // // KEY MAP // created_at Uint64 deploy timestamp // min_deposit Uint64 atomic units required by Report // reg:<addr> String that notary's registry SCID, write-once // tn:<addr> Uint64 reports filed against <addr> // ti:<addr>:<seq> String scid, seq from 0 to tn-1 // seen:<addr>:<scid> Uint64 1, deduplication // // ERROR CODES // 0 success // 6 report deposit below min_deposit - the deposit is refunded // 7 duplicate: a registry is already set, or this report already exists - // for a report, the deposit is refunded // ========================================================================== // THE DEPOSIT IS SET ONCE, HERE, FOR EVERY USER OF THIS DIRECTORY. No // function changes it, so the number below is the one this network lives with. // // 24 000 atomic units is not arbitrary: it is what the chain charges to store // an act contract, measured at 1.5 units per source byte. A report is a claim // ABOUT an act, and if making the claim cost less than issuing the act, burying // a notary under noise would be cheaper than the work it accuses him of. Tying // the two together is the only anchor available that does not depend on a price // somebody guessed. // // It was 10 000 while the design was being measured on a simulator, where // nobody has any interest in dilution. Function Initialize() Uint64 10 STORE("created_at", BLOCK_TIMESTAMP()) 20 STORE("min_deposit", 24000) 30 RETURN 0 End Function // Publishes the caller's registry. Requires ringsize 2. Write-once: a second // call is refused, so the map cannot be hijacked or quietly repointed. Function SetRegistry(scid String) Uint64 10 DIM k as String 20 IF HEX(SIGNER()) == "000000000000000000000000000000000000000000000000000000000000000000" THEN GOTO 70 30 LET k = "reg:" + HEX(SIGNER()) 40 IF EXISTS(k) THEN GOTO 70 50 STORE(k, scid) 60 RETURN 0 70 RETURN 7 End Function // Files an act against a notary who did not declare it. Anonymous: no // SIGNER() on this path, so the reporter keeps a full ring. // // Underpaid (6) and duplicate (7) both return non-zero, which refunds the // deposit. Only a report that is actually written pays. Function Report(notary_hex String, scid String) Uint64 10 DIM s as String 20 DIM seq as Uint64 30 IF DEROVALUE() >= LOAD("min_deposit") THEN GOTO 50 40 RETURN 6 50 LET s = "seen:" + notary_hex + ":" + scid 60 IF EXISTS(s) THEN GOTO 140 70 LET seq = 0 80 IF EXISTS("tn:" + notary_hex) THEN GOTO 100 90 GOTO 110 100 LET seq = LOAD("tn:" + notary_hex) 110 STORE("ti:" + notary_hex + ":" + seq, scid) 120 STORE(s, 1) 130 STORE("tn:" + notary_hex, seq + 1) 135 RETURN 0 140 RETURN 7 End Function "

Prove Transaction

Prove that you sent DERO in this transaction. Obtain proof using the dero-wallet-cli command or from your wallet statement.

Note: The proof is sent to the server for verification calculations. Payload proofs are user-provided display proofs; for the strongest verification, confirm with the receiving wallet.

Raw Transaction Data

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