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 0xe5572097b9fa522b0938bbf072f3fcce0c4e6ac7d7c0308a8193fd74b35223e5. 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/bf7e114a-842d-419d-adc3-33aa7ba5bb48.json and https://artists.proofprofile.net/proofs/artist/bf7e114a-842d-419d-adc3-33aa7ba5bb48.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 0x62047f9add548175d9ca47fd74b2ed6d08e2e8607ac086e4d3ba1f5e02a2a63a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARF410500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbc7d40c65dbceeb48944371abd07701816570257fe442607bb7c43232c77a3. 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/ARF411900353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f8b1d263a4ee95c4196c85e51cc1e7e6ceaa574e6aca4f947c3cd679d09c71. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARF412000234.
Pride (In the Name of Love) [Ronan Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5e6c0e2e08254e574b8c6835b4e499460936c4753f8987b76d87d2cb41d34f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARF411000507.
Vintage Café Vol. 3 - Lounge & Jazz Blends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5e6c0e2e08254e574b8c6835b4e499460936c4753f8987b76d87d2cb41d34f. 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/ARF411000507.
Vintage Café: Lounge & Jazz Blends (Special Selection), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61d9029f50445574a75f33eed3c10fe8a020d8c9af6ab128995b8e35aa40b26. 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/ARF411200007.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39df9084e54a7d3ce02661194f4d273c5df32af7b232f90770e7a3e9d180f981. 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/ARF411601089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61d9029f50445574a75f33eed3c10fe8a020d8c9af6ab128995b8e35aa40b26. 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/ARF411200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec23f966a05320b714d52a5c0edfe848591798610a5c698610c17fa7e09fd1e0. 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/ARF411900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9efbbe306f5a625521c941a905ef0ebb395da2d25b9e6a28ed15e81967059a1. 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/ARF412000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbc7d40c65dbceeb48944371abd07701816570257fe442607bb7c43232c77a3. 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/ARF411900353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61d9029f50445574a75f33eed3c10fe8a020d8c9af6ab128995b8e35aa40b26. 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/ARF411200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88199ce260081e567a2aa6fff60835a3d36046ff93dde42288cc21adda3f353b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM6MZ1437640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4b5456e9cc96f811d31b7c32523f10adcd51dcb55b66f107653c8995e08cd2. 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/ARF411600030.
Pride (In the Name of Love) - Ronan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1496a4ac6c92b467a26ad594b4a36bc59c12ea886332539ca5ceb6ed7d6c37b. 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/ARF412300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5e6c0e2e08254e574b8c6835b4e499460936c4753f8987b76d87d2cb41d34f. 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/ARF411000507.