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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e17ce5837db6ace5f1dbd04c40b519c989797c5a50d35c00a742dcb658c4212. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58bbad4d-8dec-4b70-9d5a-5c7393d95f3f.json and https://artists.proofprofile.net/proofs/artist/58bbad4d-8dec-4b70-9d5a-5c7393d95f3f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c790bb7d317927ae7c3c8df570f7a3d2f6a225230e7186cc4b04d99e196a7d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UKCP61500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9795d5321f4b1fde0d6124759546ccd38e5fc220adfde1b1306321c561eff36b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKCP61500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb96935572b9ee8c0d08fc7f5a30ab606ea3d39602f0dec2dad26b348e472b91. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:33:28Z), 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/GBJX36615132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94cad6a67446a03b494a7ab7ab79ebdfd69a20cd16397db8cd373e1e4175255. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBJAJ1901759.
Swan - Mendo & Yvan Genkins Extended Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e72cb940fef2a17ef25eae6c502fada69a6c41e2222a4ede8e0db9ffe216af. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBJAJ1500146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b4eb2eb5b298deeb6f68416e3f90165727bcc0db6277279b21330241e76bbc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:03:34Z), 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/GBKQU2375864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0a09b444ffd9bc9c60ec8c69ecf3b3359ed8e1fec05abd7afd6d7e4443956e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLML62400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596b3068eb04fd3284334c2f71ef107730d679e5a87b0aad79248e47b4b7dfab. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:56:18Z), 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/AUDCB1702844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ccacd4a10b1156e933b83407226856c3cf1a0ec476c810f3a950434b478661. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AUDCB1702847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e7ec65bb26561aa360374499d43cca95506191a785e46abef41aa41b08b230. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ITA061302850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab41cba26df782e9f33f6cc68190dc5190794fcd496946bdaa634cf8c6d2378. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES7842028238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252f2fbfe3c1cb74f2970ea20cc051ca8c62970015e85375cd3599d9b7ba4e9c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBJAJ1902255.
Diggin’ (Compiled & Mixed by De La Swing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655220adb2c42cf448c3e41103099a2f426036d6068609b9f791f2b82e6e9d75. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES94G1710203.
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 0x529d9e3ae693e7de565b629a6739b4cbfea9d74e8700d1309e36cb924b8c55b1. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBJAJ1901758.