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 0x89afa70da6add547dcaecedd498de886739c04757f7155250fcd3d8f1b56e3e2. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1a10b39-b025-45e5-96e4-c91ded538c09.json and https://artists.proofprofile.net/proofs/artist/d1a10b39-b025-45e5-96e4-c91ded538c09.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 0xc1412f1c52a5c78b8952dcf446919181fc95b6ee4383b82b2e1d246d7b2948aa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SENAA1701201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821b53ef238df5797ec20e2fe601ed50ccfee14b0d1ea1eb0b0645dc01791115. 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/SENAA1701202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa897153ffc29fd7f476ecdabfdca7cd02f8ee8ae3b29c8ace349fb07f6d8bd55. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/SENAA1701203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d66d7e5abb6653f8872ff3dfe5c271b605bd71e9a374f923f152af7643e89c1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SENAA1701204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f0d85a86ad4e76f5e1ecbca1ae08b5cf79737cbee997b2c0c6a8dfd9193cff. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SENAA1701205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36036609a77bd700c4602e6526eb0daa63a50a994ae007a6126eb9e688503ec9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SENAA1701206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0da8e5e76660bf0d8607cc65845d019224bf6ac0412568c3249697f4ee50c66. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SENAA1701207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5abf86841e4343b9d66f0126bc26323dc2b8aebd1295bbc9f898416316699d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SENAA1701208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a6f8fb0a86e08411cc1c9517dfb63dd06b66e4293006e575d0b5abfc3ece44. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SENAA1701209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae9ad3b1b4bdc6099633ec02467b57978c14ade481ae016557bb4a63e73b345. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SENAA1701210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bdedb492357f2d933b4dfcfab0a3104b2aabbfeb3c28b40d84dc4c7c7468aa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SENAA1701211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1412f1c52a5c78b8952dcf446919181fc95b6ee4383b82b2e1d246d7b2948aa. 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/SENAA1701201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa897153ffc29fd7f476ecdabfdca7cd02f8ee8ae3b29c8ace349fb07f6d8bd55. 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/SENAA1701203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d66d7e5abb6653f8872ff3dfe5c271b605bd71e9a374f923f152af7643e89c1. 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/SENAA1701204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f0d85a86ad4e76f5e1ecbca1ae08b5cf79737cbee997b2c0c6a8dfd9193cff. 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/SENAA1701205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36036609a77bd700c4602e6526eb0daa63a50a994ae007a6126eb9e688503ec9. 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/SENAA1701206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0da8e5e76660bf0d8607cc65845d019224bf6ac0412568c3249697f4ee50c66. 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/SENAA1701207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5abf86841e4343b9d66f0126bc26323dc2b8aebd1295bbc9f898416316699d. 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/SENAA1701208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a6f8fb0a86e08411cc1c9517dfb63dd06b66e4293006e575d0b5abfc3ece44. 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/SENAA1701209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb65b3606da8c19844a6db2bd5ff6b02f1c61533e09c31fa34092333ff65709. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SENAA1703501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf9645b644ff96988c689cd2bfe6156838559cbf1461a68b47e5cf97e52e22d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SENAA1703502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821b53ef238df5797ec20e2fe601ed50ccfee14b0d1ea1eb0b0645dc01791115. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SENAA1701202.
You Wore the Crown; I Played the Clown - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29864a28082a8ebc613c687d7f3aaff6e63ca4656dda30606380678283c85f55. 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/SENAA1703201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0da8e5e76660bf0d8607cc65845d019224bf6ac0412568c3249697f4ee50c66. 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/SENAA1701207.