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 0xc3fbeafd6a969d9734f49d3f0de0485822c3aed63ec3f83a073ba5809e06709a. 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/ff64a326-d6d8-47e5-8fb4-1545c875f208.json and https://artists.proofprofile.net/proofs/artist/ff64a326-d6d8-47e5-8fb4-1545c875f208.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 0x4faf2c6418b6360a177d83853782e24e43edfff65291e64ed1fcfc3137eee39a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZR8E2400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea66c24454cc5af4d1bdbd403d32eb128c0ec971d51d6eec604a480f5d5efa9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZR8E2400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b3e1fe576223a204ca58a95c36a8f95ce0e7d0bafe3864d8497d5729e4e109. 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/QZR8E2400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644eef7282a17a859e0c97cdc4c60ed1ac90f37e881e21c08d978b6fe216db02. 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/QZR8E2400146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faf2c6418b6360a177d83853782e24e43edfff65291e64ed1fcfc3137eee39a. 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/QZR8E2400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72615429f173bf33942cc783f4adb2b8f248ff065f423ca3ad05e401a8e9a82d. 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/QZR8E2400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea66c24454cc5af4d1bdbd403d32eb128c0ec971d51d6eec604a480f5d5efa9. 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/QZR8E2400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921ddb3d9a29ac7c40bf33d1fb3ee6f80416861298b9bea80eaa9d4c25678084. 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/QZR8E2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b3e1fe576223a204ca58a95c36a8f95ce0e7d0bafe3864d8497d5729e4e109. 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/QZR8E2400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a548d098a3d5db3aff9078156c514cf05b735b1d80e4fd47e97af07b39bf42f. 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/QZR8E2400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf374c3f2f4f3c53f71aa59b3159e111cd40c222b9f79dd6984682c78dcc3a0de. 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/QZR8E2400140.
Made For Jesus (I Was Made For You) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080d1af8849759d4507053c5b3acca4750323ac04a53eba5862634178886e2b9. 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/QZR8E2400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd549333833cf46c5fbcdee6e8174e32a77c6622a1e92abfdd14c07b78d44f862. 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/QZR8E2400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2f2decacafbbb8b538ae415a408bcda25c01c53e5603233e542fd8e1ce6abd. 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/QZR8E2400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4897aee965a4934eb9c1fa7168a7039973ff26d5d4ef4ba20578e0332dda7082. 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/QZR8E2400144.
Purify Our Hearts (Refiner's Fire) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca653ccd1c7e5fa7aa9d0d1dc8055ca2780dd6044cfc1824db6bdd7edd2b7c3. 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/QZR8E2400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b79dada0348e3c79f53dd9badd96785627f3b9b9a5389a35c3649fa897c823. 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/QZR8E2100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf109b16b156c5a9920ac9b8b0364704396be13551da58250e3981e740957cc. 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/QMF921950043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68d5c336131baa7782b50c8e8329953ac57d42e87e8d7776ccd498a7dcd1c96. 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/QM7FX1400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7dcf722f544c4ca9cb95c6f2e793443e02903ee0a1ca4060a82734a0c7f22c. 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/QM7FX1400027.