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 0x93d773764c628d7828f149846662fc3110325e43f62e20e1f519302b43c752f7. 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/1adea407-dbf1-4561-a06d-cd6dd6a13a13.json and https://artists.proofprofile.net/proofs/artist/1adea407-dbf1-4561-a06d-cd6dd6a13a13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live Your Dreams Living Room's Surf Clap Remixes
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 0xd406f700695b6e928b1c3cc1b20234c0e2821f1ca6d91da7738fda9713737e31. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEFF42200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba8fa3f6471bc29ad0c6eb6e406f0c0e316a8b09c3a2f743220fe1da3d31a4d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEFF42200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b68db2e6c8151af0af2020c10a6323e6bb12f9ed2a751c4ed00f863641c7e1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEFF42200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb95b978581b6f374e24db867cf37319969497a3466ed357717a3885e6c4ff6. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEFF42200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa874644053c3b466fed05fc0ae0318f07e6cb4f4cd55ab5abe9cc8ff77ecf5a2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEFF42200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b413c52746d57f23fa239243cc66b5a538680a86246ea732e53639e02fcf4e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/DEFF42200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6625f7625d2d73a5d7d1679ec5254de153d4dc1b35d3b996de466d75f78b12d8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEFF42200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb637675cb6fbbdb87f49de421e8bd4a7472392eb67ed372e692207040c39489c. 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/DEFF42200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47962eda127b7df385de0186198cfa6316e617b499205f9fadd24c6a6f5e270a. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/DEFF42300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892b39d13c6963515de81865c6904bbdf40105d73e328977114391709a564657. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/DEFF42300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ceb29d263c7db9af24de76c4cb0075c0983dc9ccce6951be13926d64684ae9. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/DEFF42300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532b74a98db5e5ff7682688477bb7420cacc0c1a824845dbbfe06834b704a74d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEFF42300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446405f29ff818a10af41ecd63cbd68a4620b19740630b9e65e5979e466b75c8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEFF42300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123f63fecf480d22eb85797cf6d0f7c46e50308c5c6206164e972e687ca34e64. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEFF42400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a4a78f32de04e1ba7e74a2e6c8fe5edb887975e5bf8280240eea09d0d4fffe. 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/DEH742415844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf639a74f8b877b96f8c949e21efdf360d2bebd574652c7a0c6a3986d794a99b7. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DEFF42400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2692fab2803e4b87e38279468938ea5ba3c74f36756979c4ce33cc0d24ca79. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/DEFF42400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7baddc3a5000e83ad4eeb874e5e5945abf527c53c55314a7c22f3b6ff050a1. 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/DEFF42400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b7ce2cccc1325f476c4a345b9006d0b25d13d45ff354b5a5360dc945272eb0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US23A1593117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b04bedb5fc7d658265a94b88bf4f51a4d895972143058dc9d7e43b5016c942. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/DEFF42500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e828d9493ad2e8ca2a1881b6872ced262b5fdebcc8ad737b3997b6aec1300d. 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/DEFF42500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5c81d6e49717814631d0084c63be86b7e39198cdadf481fcbb6da26369de3a. 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/DEFF42500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23453faeb0cfa6d9302c2af33f2b8977f2049bfac6e25fee443d4a79ca939798. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEFF42500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2115bd4405d4aa292f614f9faf419b84125361b57b9046f6d69df43a4897e16f. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/DEFF42500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6866c55e2b76bff63053167c6574934ef4f6e64cdecb43271e83472110ec0c30. 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/DEFF42100030.
Christmas In New York (Chilled Tunes for Relaxed Days)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4e2640b7dfe9aa859f486386937ba3e7aaf2a965b399ee5388338a6011083c. 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/DEW871001038.