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 0xe42b21f2b2e410e88538d4fb0ce67269b6798f6d37361ff406a90abe293efead. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f3d41d4-cb61-4cf1-b4fe-ca8e28aa5f4a.json and https://artists.proofprofile.net/proofs/artist/0f3d41d4-cb61-4cf1-b4fe-ca8e28aa5f4a.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 0x7308e3b18527280cb4b403390e7cc820e3bf59f4d7a74213d8200761347fdb32. 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/DEQ121855746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2457a520524bf765afc1ea610b425fbe0d2a7836a3186d65f981de84627839ca. 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/TCADP1834692.
Give Your Life to God: The Best of David Bouknight and Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab28d60aff21b18250838d7640f6359d180b1a9f0315ec23fec8b38bb212f10. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM92208242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9341eb9b858b426826c9b9930cc002dae9fdc03a38942d0ded2b5fce99b1872. 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/USHM92208244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3bf52a5a95d5293eb9cffe99c588958a8cb5fdf3651817e35dd8468e618a15. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM92208245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad3a33426a0d7676a1984b686815709bfae9c3c4c0f122c4a2623a7ca9efef2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM92208247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a23f5c5f8878450894ade9218959b857fe20434af11330cda5818bb29be6a55. 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/USHM92208249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cd0b2aaaf0f4a6e197382247475453fa1c7b63c151c5013729a3ed619ef053. 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/GBY711200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fabaaef185cd4ff50c1f097e1438d3041795d5b33609922bcc5f9e5cfdcbf4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBY711200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5b99b73b9998ad6f4720bd64c41a5bee75b1c981c295e6c79001e034146678. 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/GBY711200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4933725bc6365ac869e279a776871bb283f3a09a94b2bb1dde02056b77faa70. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBY711200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2a6fbba46ae97ed1f5772e03cb775f98a7d69ed9bac6acf325579a2a1eb91c. 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/GBY711200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf19c6aae1937b8f2fc5a864ec50f7e7db12192b82aa8ec4438ca629358ecf97. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBY711200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b4961e15705b6d94c630c47316291e0452dc07f97faf98f1391f55629b2f44. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBY711200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265477b073f751b89981ed2c04cd6fa22c51e8e5526b1c6ba3fc2094ec6a05c2. 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/GBY711200028.