1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xeef470bf94c15a46d1642e9c30255611fbea4f9907ce0946ecdc6f535df9c39c. 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/824a8ba1-13cb-4365-bd92-0edeeeb6890e.json and https://artists.proofprofile.net/proofs/artist/824a8ba1-13cb-4365-bd92-0edeeeb6890e.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 → block OTSBitcoinBlock must exist at that height 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 0x8ee0cb3e836b625cad10f1445a6d15b7e71f6d74d355e7d2664114336c34014e. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/USMRG0934403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a99f33d73961b9f17ca9ff4f7c161b8b5aa2057d91131b752cf25d12c11daa. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USMRG0934406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b583333f7b9da33db68860f816c3aa30b2299a47d05b1ace8caab6a77fe6fd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USMRG0934407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5668100a2ef7c1ea5210571d08b0db3d70f60f492ec1f103a3592b85fe5935cb. 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/USMRG0934408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e15cb7eb62809a7b536b65baa725bdfd0baa1cb77041dbde2f76d17e89aa56e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:09:24Z), 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/USMRG0934411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206d27456bc345a715ecf47a2591e90f5a4ac4ce3e0613b951b3e92f2d59f5f3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USMRG0934402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bcdbba3d7a5c8b37a806c3ddec71659d6f98570da5f0cd891ef1421204624e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEX260909402.
Please Ask For Help / Game Of Pricks (GBV Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ea0e6fd737bab0a90b2f55a85c4157cedcc10956abeb707c2108cb8cd0c546. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEX261110202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954b7e12ca95100bf3c86857755c2c22e3bd484e3ac4832380b9c178996a6f23. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USMRG1139404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5224c6abc9e1f341ec2e1ecad269e5136777cb188c20840521eb654ea0106171. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USMRG1139406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5a183f7b04adbfbc895a7a994782ec8a6d86d1a2424f3d4731df9752cbd4ee. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USMRG1139412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba255ae1ed393dadc9779de57f2ae76f3f403ef2a99f0cde1754f0951be9ffd1. 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/USMRG1344407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9510f400dc3aa818317501bf984182583b4ec62fc4f70b2cde6aa86f0893d0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEX261312304.
Polyvinyl 4-Track Singles Series, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c81c5801406d77021929cd8ccec156cb1eb41dcd9d4a89c000243f4bd24ddf. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USMRG1967402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79a03d95a277c2f3532ab68947ef1146a22f8dd90dc05fd8002dbf3ffe1f8b0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USF461000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714fd0b350fc67bf527d33eb6e871ad2c56da6599da9e201503d62f97678816c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USMRG1554401.