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 0x27e67280f1907fe4a9882042c3f7ea86397f94614798b2c619e1fe311f040ca1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a5d009c-33cc-490f-8eb2-b0b75921f38c.json and https://artists.proofprofile.net/proofs/artist/4a5d009c-33cc-490f-8eb2-b0b75921f38c.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 0x0eafa72d932558c77120c5695b5fda9a44b6ce60b371c1c7ae1b9a6926b89b76. 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/INE302100797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb6de749251e2ac57fc8042b285b0588510d87112b54928933bd762155c68ac. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:28:53Z), 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/INU252204260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120d27e2d5882b28069c86ae50588d6cb03b42e2278f435c80bbd511d83c4124. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/FRX872251020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c3e2b2c365397cc1440892a7abcbc3733aafac3623af6e96935c7577076583. 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/INH412301272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418f87f81d010f0c003d87427618293dc2f47ed44c27a05545ebbb6f49b90838. 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/INS7A2354852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a527a562ef92b9414d010505911a8f4b1edda3d93173fe6d7ce124706dd20c. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/ING642301987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b1c98382232195149922f1da349bd72e8015713cec7bf229c751e5132e014e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ING642301991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b5cdaab3bee5a00546611a3df0758e6b1e697945e59aebf03ba2a800ab1772. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/INS7A2475528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e5420033e81415d59b7ed1f4a46616bb0ab4e3643025e0b4d26047d60d22c6. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/INU252205230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d57d44bfe0ef6997b5fc42b42c978e91e26c10212799307a26f37c5d969149a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/INR952300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385326ea46a5fe39be2642dc8fe3e284044a4aad673922a62adda07fb8797926. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/DGA082321868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec5c2edb9a923d03a3c38d1277e1a60195860b1a12fcb19af33d96ddf81d814. 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/ING212338381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801a910c54ca1dd974a46abab0525f2731da26d09d8092a1bc4e994ccd4b0927. 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/INN242315763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda04c2cd23bcba69e1e0d808d11443133f020b29edaf7f11da85d5f68da50ac3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/INT802201029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5105b540d0ee72d994f155c11c88df3cfbc0c0b341d9616393758072fc4f66d0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/INT1A2203664.
Chal Sangi Chal ( Sathiya Tor Bina, Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4a78ccc5c836f2ed6a3239b1467daf3339d6cd040f0852a84bb1f1e5985183. 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/TCAIE2415950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cda51506fe342f821a7a4f0f6479f1e30d150895944e56be6d2512047c96a4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:49:07Z), 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/CAGOO2424472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa265667c5d11744fac62fec35c4e5b619dd0c73f482acac5d08b0717355c69f7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/INE182461630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b46562efae211744d3ef78eb2773b47f764bb36b94e0f04c2cd1f2653b29a2. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/INE182567541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bf6d986e89c94e75bdeb05fd050fd05413f90b2ab46f334984ee1c6a8de693. 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/INE182568690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ea70b9fcc503f4ef21507f848d9ef3c42df94556fdf2a732ecbb0e34cfb728. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/INE182569511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea669f140ba8e4978964c8a269ca4f425a613984eb8e663db713ed43207d91cf. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/INE182569827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb493b9096acec6ebb17de6b2c394b272287022443d933bd3855fff307353d8a9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/INDF22500985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033a8e3d6ef4cb7f986e72e8f7e54863d78c620916265072f989c9aa673919ab. 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/INS251100181.