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 0xc7c3b9aa6fb26e4342bcacff6e627d748a4ad2e5b5c4797547bcfc35645b1435. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7cdede5-ac8a-4335-b9b3-c152ed965ae5.json and https://artists.proofprofile.net/proofs/artist/e7cdede5-ac8a-4335-b9b3-c152ed965ae5.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 0xaa5c6256755e399211a1900c3bd7fbfaa1b3fe10903a99d35a420f48292b8bdf. 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/QZHN41980424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23747649d3a6f668aa58857c4cb48f9206ba8adb6f76157cd80fa5239899d93a. 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/QZHN41980425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3bb2531d89db80bb479c90b7878727056d14e376d0763f4d09ef5c6f45b2a8. 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/QZHN41980427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fe4e2ce0f7101ca1f4fc7e66bf09d5a86eb010bb04100a932109597f55141c. 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/QZHN41980428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e741562ce1e1596be10888f57b9e37afabe82ccde3bf6cd938216c7942f017. 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/QZHN41980429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd8af64562f7e55bb26e51275794926ca933df763149835c6401b6c4138c4b9. 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/QZHN41980430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad273c43575be78255b87183073f297d1833c632d3b09a35a87bb18380757509. 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/QZHN41980433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8db19de4f6f5505967189060cc3a88eb0d62cca20fc4887eb93684feb6a5e2. 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/QZHN41980435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf857517aded39492458be3faa0e6bab3706215d65b05c02ed48bf41215e425c3. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZHN41980426.
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 0xe8e28bfb9de4b401c51c4fef6999ee25f38606c97643ee3ec6a1731966f45fba. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZHN41980431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeed8765031bb14f2ef47a7d16f252dde059cf0789a113846a8b2f549bb6fe39. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZHN41980432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d7e71391d0069f087b14ad5cee551d7c20f30ed367159834b2ec2f08c218eb. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZHN41980434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09af3f53822506fee8ffad15ed0b0d6d4f91412c935c5675cbd8f1cca49ca9b6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZHN41980436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239d0ac9dbec4891229d9661c276ee22d8d8c80ac6e673c17f59484bb57aa9b2. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZHN41980437.
Glorious Days of Tamilakam - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb503ec24205f1112e31fa7c239203abd06a7319f834ddd6ba89a72ec5b9ec9d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZHN41980438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fc76ca9e4152bf6da3558182eb8dde328d847f7ab0f37bdf3df8153ef693d7. 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/QZ5FN2072649.
RAP BHOOSHANAM COCHIN BROTHERS PVT. LTD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738cd5ee388cd86833540502fa06b9cba7eb77fc79fc8b9d9ff59874448a7d28. 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/QZ5FN2273470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaadd227dde9cd1d9fa9e86c01b98b293227049ec8f9e591d12623226902cf660. 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/QZ5FN2273472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0522060a5b23cfdd6acebe6b418e6cf3b6629ef5e0aec328ed3d6bc8ae3677. 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/QZ5FN2273476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c660dfda4ea0d492ce4c7d8808237ea07b51d519d471df36a62675c3543b24. 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/QZ5FN2273482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe54b67181be921785531d87e0ba436002ee51f0f9d711ed887caaa72d3fa79. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QM6P42312589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff78fd6a8366fed2bd29874fddbac205f71cea6c31f7206181fbf91b72a9043. 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/INUM72302083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f6513b17114aa13f9d1c42f3528c24dd19c1ff36cf977edf448692db2d5a48. 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/QZHN32470447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6702dc45190ddd2c1640eb55add02d12fc7b86a3f7e6f5db59c6eadd2808ecb. 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/QM6P42312703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ac304ad0c8999dddbd60bac5c8ee4c2a47c921df33bb57c29586afa00708b2. 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/QM6P42312717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf268b1433a4328b51f2be33730d153d0c948ab0a868bb81b4a101935292e9aab. 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/TCAGL2232753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3ea51fdd66f6b7622ce405f767446705843db36a47148f1861b5b24164bd51. 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/INUM72300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c86cc73e61ca3ebaa3490a79d3c204d8cb9304b559e764d1f86d8ef24c8ee97. 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/INUM72401566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3ea51fdd66f6b7622ce405f767446705843db36a47148f1861b5b24164bd51. 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/INUM72300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b75fae58b796e3be43c5122967e73c07bea5c2f5aced3ec36cf51b7b2764f2d. 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/CA5KR2118253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0369120cb4d32ef962672a347cd8d56eab6b53a2e6e185ecdce989cd82d114. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM24S2007251.