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 0x57231e2b0dd54d20c177ccc776d41e593101ef964238cfdd90ff61357a4b8229. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f1fb043-de06-46b5-b548-4fa77b35fe03.json and https://artists.proofprofile.net/proofs/artist/0f1fb043-de06-46b5-b548-4fa77b35fe03.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 0xb04d34da0b711f2c7721d039a27e113606985d75ddff35aea4a6a1a1171ca5a1. 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/FR96X1807861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec09e575676d54e9a7abe084928d47a908a9a0e9ec5560a85a19fdc40c53f811. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FR96X1807859.
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 0x8b40dbd26748b2e6c098de5b7641e46a37329711254a2567c8d172b7b09dc2b0. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FR96X1807862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2eea12c76bc56182d7f11c4c584f573368a2df247474524013e57c125e4142c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR96X1807864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f61cad0680d1f1bf86f9d8c6ee1bde25e7ddfdc0a510e217786a8270d2ff77b. 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/FR59R1822850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43c24f60ad2723cd8983f78ca85d0366f2ac0e86ec223fa09054849ff0957bf. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/FR59R1822856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3521816dab451f1b6496314d7c993a2f4740751d10395c4aef1f7987697386d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/INS180462917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c07aec81a770463a7e230e8f580f0c6cbf758d7586bee1b1c04ab1801b019d3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/INS180462919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9506b68d4c3b1022a31eb09cb733ac9d0331b8b8bee91455075cc17b13eb22. 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/INC172000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329f84c44ebc7f3995c7a72f70a37ac64bbcad2b2c63548f068e4c6b4db4c6f8. 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/INC172000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5627787f6cf492f31d5878b3a74c850494a8b86858c4e7dd9784cfc03aff8e12. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/INC172000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79ba61ab624f9ca90635b33f8341d6614e23094e5ec77b8eed4c0f1c7c23eb9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/INC172000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094db45d0a03360e62dc5783c9f72338cd6c3d479b5ab668fe388784d762b0df. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/INC172000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011992ce6b02a947921c5705d025db4dc9ee61812db3c47a48051c2fe953ee85. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/INC172000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fd05124d5bd1f87f71559096c49d6a2256b539d4838f3c640fd2c8005faf6d. 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/INT1S2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287faf2c09225514827c47b44bf41d02dbcd5d558488954da9eb76a17c3ce1fd. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/INT1S2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44027241ac28cfa38280f5e6d932d94a279902a1cf822a93ab4ef1d8a622d320. 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/INT1S2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8166442ea5f8b9cf27bbfff34305fccf934ee052596c586165acdcadbac76f9f. 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/INT1S2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6752ecabf98c6bbeb5ac73073d76b16f7f9bbf3b0918f4b8af242993e7976b95. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INT1S2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2664d9f2d993c3fcfcb9e3cd5e36f4414aead60bc137e6dabc4424192b81ba42. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/INT1S2300011.
Bhai Surinder Singh Ji Hazuri Ragi Sri Darbar Sahib
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a3b00aa8427a6ee3449c81a408987200e8c40907d7219cc2f72cef035e15c3. 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/INT1S2200138.