1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9213bea2286db3f349670fb95322cb3f1e833150cd38d96d5bf95ab0b8489de3. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4fe04941-578c-46da-8524-e5116966680c.json and https://artists.proofprofile.net/proofs/artist/4fe04941-578c-46da-8524-e5116966680c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc4d38fbdb259d0e20d801e2a241556a58fbacc817b654f67fb3e6ac70b9ac5. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F52576520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bd9afbcbe735f51a3ddc4d8e68270b6bd28539ff6f37fe75d958ab5c3fa6b3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F52576518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7237f5ac84ff5959e73c3f168cca101cd4afac346c063584c5bf6518f471e3d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F52552203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb079f6d9968f7617af184e7d4d37249848ab365b74c7bc09cc5f43ae392a95ff. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F52552207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5415243099ecef670bec0f49ba477696acdb71b74253446c4027063ce68c5417. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F52552208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423673a00f5dbf2963655fe0706832bce632f7508db3d9aa5cf8ecaecb409ed4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F52576417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3eb6d58347e93b3e1cd6a9d03f6289f42c40d75c213f2c5c44b49d21430110. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F62540169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc13660696c6229ee699a5750208bdd2d85f4a5a64badea41f05bd82eb7b1a99. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F62598076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cca08291204d8def5d82b955a79e6640e5844cf95b1cc76bbc1c49adc15dc23. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32539871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9c44741fab7fb8aaf2c61bbfed05191172f66b5d3f7f005a3fad17e31a9bfb. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32551074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1a7652adee2aa1d4314a52c40e1e90e596f9f96c863d2c087f5ad491b67711. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32551187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf596717e1de439631c3f3842d5f57c4674143a07d0fe88220e43511e25c85282. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3FH2584897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeeeef7ec7d3779c41f52b62a77c06b70c5a5f2cc040e1811af6c144b6e1e187. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32571789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3590445b4ade2f9ee4fdb15baa6a73d108fe6b2a12321018bf6f7f2aef27a980. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32575799.
DJ LIRILI LARILA & DJ TUNG TUNG TUNG SAHUR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258b9f71db76d5fb83465370cca93e212a8e4ef2ec4fd12e23e464bb0c2c9a48. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32589477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936695573aadcf0c81191f177ffae6318ac2c3d0d086a275e719cca111a0d7c6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6QE2501841.
TUNG TUNG TUNG SAHUR (Zbeub Zbeub Edition)
TUNG TUNG TUNG SAHUR - Zbeub Zbeub Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dfa632712ac17f106a026397d9c2a03eb2194bdc3c3ad9dd6a274c871f49ff. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6QE2501610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228b6ad1eda81098fefdb7490870e9a32971f5c828547307234783f3b3674453. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6QE2506091.