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 0x976f62550bc1778cba0dd620a7a9ec2e41a8a6087f0811bb4ddd15719db84055. 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/3de682be-c0c2-4655-9699-acb6821e6aaf.json and https://artists.proofprofile.net/proofs/artist/3de682be-c0c2-4655-9699-acb6821e6aaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amar Shara Deho Kheyogo Mati (Original Motion Picture Soundtrack)
Amar Shara Deho Kheyogo Mati - Original Motion Picture Soundtrack
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 0xc59962660069f000819c2dfc111bbf4b41c2248dcf65837ca2e74aaf6bc0ebd2. 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/FRX202145682.
Romantic Hits Mashup (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffe15a50c1d6ac1257a30b11388bb6d5810de3edf275129449f9a327d9ac43d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZES62152487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2acac79d82fb188b914cb56bf20b752a829a78000cde97b94c8e3cae03c86a4. 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/QMLNB2100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf32a8419c84e2f8715c799052d501eb57dc117e3f2dd38a5d13f75f52fd877. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZNWV2144644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c88c811274434987bb39695b672de7165300647070ff9c4913d8b2c6899478. 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/AUBEC2322667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25d99550b81f6b0775fdfc6e8fe5199823af5497fc5ba9e12b7118425544c7c. 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/QZRP52136288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb885afeca0fc2af406445f5883faf1d3a9467574b81ca7b6e44491a8a142aa. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:26:11Z), 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/FR10S2460159.
Tumi Mor Jiboner Bhabona (From "Anondo Ashru")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e117bdf74029d61fd29238937de1a4acba4b158605d5c830b7c62857925d572. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:31:10Z), 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/QZWDW2552998.