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 0x793da86cef9c92c2119b2a35d5a04eb81d22ab673aa9275f7e5f85523aef3800. Chain 2 (Bitcoin): anchored in block 953886 (2026-06-16T04:37:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bb591a7-2d0f-4920-ae9b-a3863e1ba0f0.json and https://artists.proofprofile.net/proofs/artist/0bb591a7-2d0f-4920-ae9b-a3863e1ba0f0.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 0xdbe7c571b4ea3c776f42175664b66d75c1747109000f787e8b437c50a4f1e1f4. 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/INS2X2217011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4839ae94023f6a3beb44b845ef3d91d1debd5d38cd6cd8f5e526096ed308bf. 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/INS2X2217012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796636d44ec3bc7f3359a5465b5ddde06c41d5225dc5f74b3f30fb920822161f. 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/INS2X2217013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445f6da7e9f372c3fd20b93abd04af2d7121d520329f598919fc7cad777ea90e. 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/INS2X2217005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eee2f6bce429cdf97d9265b759bf81f2fcce88efa77c0cd1aaace6db3c43025. 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/INS2X2217006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da441ca81385d61cf4fc741db230c9b56ce627bb85773462872fe68eed758ff. 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/INS2X2217008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e61b0a6a5c86a53b4b899f05aa09685f1c90ef846a55b79bac9499b22ad9be. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INS2X2217007.
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
Kon Pothe Jay Je (From "Mon Harano Gaan")
He Mahadeb version 2 ("Rudrabinar Obhishaap Part 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d93a1b8fa0eb55a6a34161a891b01215018eeba6ac71bcf8f29ac8220ae399d. 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/INS2X2215002.
Ekar Gahone ("Rudrabinar Obhishaap Part 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d68ccb14e59d2cdf2233bbbd9653cf381877432d33c66637a202df3d71b40a3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INS2X2215003.
Sanjibani ("Rudrabinar Obhishaap Part 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa7fe5b460676bdbd3c983a21a142886fd4f7501ed65ff3a05b5861773edeec. 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/INS2X2215005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8532f403d68ed34e8d0e301a8a70d491468614dd82d7cb3e192264fd3b047f. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/INS2X2215007.
He Mahadeb version 1("Rudrabinar Obhishaap Part 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb91d6cfcfc21262947554985403d90112bde20b8c74a18358ee2f22389c310. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:11:14Z), 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/INS2X2215001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3048b2d3b437423b0dc42939b4c760e6dbc189a8261ffaf4c81146f66690026a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INS2X2215006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9620a6546cb257f28b250247dd294e8b575e3115190badbe058c04d78f55a8e. 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/INS2X2200009.
Karnasubarner Guptodhon (Original Motion Picture S
Shiv Tandav ( From "Karnasubarner Guptodhon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13875bb6289bb7f5d059eb1700431df5f6efb74af8f52d5822472d6da7385462. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/INS2X2222024.
Palash Palash Mon (From "Karnasubarner Guptodhon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cd41e1298dd44c0f1e83c4b0ddaefcaefd4ffd830d2d44f1ef90952733cf13. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/INS2X2222020.
Panther- Hindustan Meri Jaan (original motion picture soundtrack)
Mukherjee Dar Bou (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fd1caa61b0796702d08028408057638deaeb5917189bdeae4dbfb085017a01. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INT131910167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598361590e7e2d66eac2ffdf2ea2959a6ed07d6471815712f059fbb0bebf0047. 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/INT131910170.
Manob Zameen (Original Motion Picture Soundtrack)
Ektu Sore Boshun (Original Motion Picture Soundtrack)