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 0xb0e367249871a6b600fd25386f18350b72de612c7f5422d28c330e4a267e0f05. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48f940ca-35f0-4139-adf8-1979e1685b6e.json and https://artists.proofprofile.net/proofs/artist/48f940ca-35f0-4139-adf8-1979e1685b6e.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 0x3abeccd38074e2a1dbf01dd76c21b1596d3cbaab5772ab76c6a2c64a5ca37fd3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QMZSG2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c0cada04abf1c7cc10057bee269f58ada9677b04092330d51fc37bb59700c4. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QMZSG2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb5942e8bad34a5c9e344a2a6c2a01938154bea39ad20832a3f78a9bb1861ee. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMZSG2000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e51049a9ee43f51d00d499d84459471c35317e6e5918c21c4c71fc7e0a1703. 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/QMZSG2000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc8dfea37262bc737c069b5a10cd48207f296ebd83bf39471cd8f8dd532333b. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QMZSG2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42265ba65b901f2cb40d5c1cdbe59178459241ebc17bfe429b468b09bd0f54bb. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMZSG2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c1f5f4e13b6f4301d6ba0062baf18e28ae24d633b00f303905066287943bcd. 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/QMZSG2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abeccd38074e2a1dbf01dd76c21b1596d3cbaab5772ab76c6a2c64a5ca37fd3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:38:04Z), 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/QMZSG2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c0cada04abf1c7cc10057bee269f58ada9677b04092330d51fc37bb59700c4. 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/QMZSG2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb5942e8bad34a5c9e344a2a6c2a01938154bea39ad20832a3f78a9bb1861ee. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QMZSG2000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e51049a9ee43f51d00d499d84459471c35317e6e5918c21c4c71fc7e0a1703. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMZSG2000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc8dfea37262bc737c069b5a10cd48207f296ebd83bf39471cd8f8dd532333b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QMZSG2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42265ba65b901f2cb40d5c1cdbe59178459241ebc17bfe429b468b09bd0f54bb. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QMZSG2000019.
O Praise the Name (Anástasis) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1356b79c2df67dca383d6d991e2c4df606768b681d588ce1b129fb047bc0dd72. 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/QMZSG2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c1f5f4e13b6f4301d6ba0062baf18e28ae24d633b00f303905066287943bcd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMZSG2000023.
Be Thou My Vision / Turn Your Eyes Upon Jesus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b935e4070731da82403adc4d6563de3fb012b05c43ebf01db2cf1f1d392222. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QMZSG2200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce40343d85dcfb2d97fe932ba2842ffcf07dbd81f45925c89457d742b8430649. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMZSG2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177507219c18ad8750d9dfebadef41075fb657565c7ebddb16aafc951aa65e2a. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T14:53:58Z), 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/QMZSG2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9550734d913e76fafd0b136912f0cb2914cbf4a2985fd08d03b743c60fff4c88. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QMZSG2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b935e4070731da82403adc4d6563de3fb012b05c43ebf01db2cf1f1d392222. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QMZSG2200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce40343d85dcfb2d97fe932ba2842ffcf07dbd81f45925c89457d742b8430649. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMZSG2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b4e979822b5b93f5d87b451d9e641da89f9d2df5ffe9d0a335639cbc7571e4. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QMZSG2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177507219c18ad8750d9dfebadef41075fb657565c7ebddb16aafc951aa65e2a. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QMZSG2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9550734d913e76fafd0b136912f0cb2914cbf4a2985fd08d03b743c60fff4c88. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QMZSG2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b0c3cde583594e0e19556bb93ab467c3a6b0041d651b8f061beb80e13d6340. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:31Z), 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/QMZSG2200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea9643dc0a3819f3a3d3e36c01395cb039bf86d390a9a986eafa64112c1a437. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T05:04:30Z), 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/QMZSG2200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9c545ffccdf71ccd9324b7af9a2e3c4da0e34f0fe8333f91d21f257bdc9a32. 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/QMZSG2200038.
Total Praise / O Come Let Us Adore Him (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d7325d89eebaacb17c4d201e642765236f92866fb86b642dab81e22ce46148. 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/QMZSG2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6309769ef9d03006a198417b85bab8c6b40abe6a8e3cf8bb611062a3caa96d6b. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QMZSG2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68fa6744bf8e3e23e8acb4420223c4540f5d8f0c9455a34b2d5e02572fd4575. 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/QMZSG2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69cee3f8ef58c9de78c019407e7c1715c860cd8972017788970135540d239787. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QMZSG2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d02f4873c6aa2234dbabf6737e699d63264d88c81d59842767496859aae86ab. 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/USM1C2200051.