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 0x73775800a82e4c73e47dee811e5c3a01da3bc54351281a7a635ea47d5a3d7222. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dc00932-185e-4c00-802b-99d731f43627.json and https://artists.proofprofile.net/proofs/artist/5dc00932-185e-4c00-802b-99d731f43627.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 0x51040d9bed787fe801a1bd0fcf5a791ec900fd148684a4afec477d0f8c051346. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SEYOK1823222.
Tales From The Last Generation (Released 12 July 2013)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38674c156c945c87f1a3e6f976d3272e9c6909a1c6e674a47870480f327b9efd. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/SEYOK1516481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe67e176eb32927135d5eaae862d7db900c48a464045969f10dda3ae8d8159f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SEYOK1516486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad26b672526bbbca676351568e419b119e92a8fba1a61a3e316113945138419a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SEYOK1516487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364d6d7898258aaf059d21acac4a826b46c87bcb98120b03d8d609aed2bcf324. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/SEYOK1516488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a8190938c2021b27e0dcef41d1edad3e9872786e63142f32dd2b34bb538a03. 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/SEYOK1516489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b79e5af119ab1db573e57888199f79b9738724eae496e7e21176945386d2d5c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/SEYOK1516490.
A Pleasure To Burn - Exclusive european digipack edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11902be0c2ee69f89c917bc03595259f81e10622f48dc83d28a431785fe4b87. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SEYOK1516492.
Vote For The Fake (Released December 2007)
Docet Umbra (Released 2011, Remastered 2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa66eedf067311ad1a8f945e1b873e087ba2a4a1ef640a25ecdea140bbb71e6a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QM4TW1929203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d88c5222674031359423a493ed60ed63d86dead6f88dde6c0cbe3ae94dfce5. 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/QM4TW1929204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd689ca0053788e7e6f54c44b89c6dc773b99db316706f2f9daff1151ea20190c. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QM4TW1929205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc968498e23b75c0496b242962ed731308a755fee2a506251aa162a29d564a236. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QM4TW1929206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed769f21114217b173ee797b7afc8a7c0afc9383ad83c6a2304c8941427d307. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QM4TW1929212.