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 0x66bb869e30225b0ecc268ac041d856a9586e0838a220e21678952f06136af194. 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/a2103a29-4fdb-4808-ba09-758f20a5fc4d.json and https://artists.proofprofile.net/proofs/artist/a2103a29-4fdb-4808-ba09-758f20a5fc4d.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 0x26f4611b686235832720242437bbc62ad4f0912825a0f829778f21265ce7cec4. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T17:33:18Z), 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/UKPNT1800165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2667713804b651fdde9bcbb16c3eba140e53b5521b1f86e92d75af906dca20f. 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/UKPNT1800166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f4611b686235832720242437bbc62ad4f0912825a0f829778f21265ce7cec4. 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/UKPNT1800165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818af4f3845cd0b15319dc7d78929d38f83ce2d09bb7be82657481eed6d53478. 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/UKPNT1800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1618d8d9573d5a40ab0bcf7bf9c40a0d7698f512e93ffde613fb8625825a5c60. 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/UKPNT1800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa235b01b1ca164a68da72a69b0d9a29aaf018e876918840f39437f4f1e6d56f2. 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/UKPNT1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ac3cbca980cc3306cd8c8b594803f283f221e2151192518463b67c8392b49b. 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/UKPNT1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21442dd6ab224cda724e814a930718394fcf47e19079d6318bda05d2f81fd9b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBGEY2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b67ac2a05b86f0dd8d8d269d2cae703fec08b70de7d5731c7678e0d8e380fb. 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/GBGEY2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb656ad17340cc935117d4d09b328886ae5c2d74d57c72762f45a100f9ba600f4. 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/GBGEY2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88adb9eebab5360a7a09c3a375818c2f3cdd9d389f79916549917c4b799b1aac. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKPL2088445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef508574369742a308a495e33bf167a1a13e4b7ef9e2f373c43eb335c907f96. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBGEY2000122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0c7360a449fb8d0ee42d46595278cc5aace7c8ccdcb6eebde0c05a8ee5e746. 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/GBGEY2000137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a26208e162d02e3d2586afa6077af17f77f7cdbbbb7c3bd539e89432cfdecc. 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/GBGEY2000084.
Eyes Wide Strut (Snapped Ankles - Austin Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8adec709429d017c0cee3ab79e907731518ff692405ed705d8a392acf427a2. 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/UKPNT2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dacaaf27d673d6900df4a22d9c2fb7bb9d3ccabc45446ebb76f246d2ff2a05. 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/UKPNT2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7971475040c853f3744ebb26e125cb671124f051cd2b40e1e4de175e22ebd6d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKPNT2400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef9a4a889185c56a41584592c571a961f0591eace085936a1752d2ba7d8f982. 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/UKPNT2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cf27fc86f2afc76fa9506994e72d32f7a033f554d8c413c270b5efbfbc2edd. 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/UKPNT2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c34b1911800b96e9638c5032c99e00ef741dc7b87863958f9636f0ed1895e7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKPNT2400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7971475040c853f3744ebb26e125cb671124f051cd2b40e1e4de175e22ebd6d. 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/UKPNT2400042.