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 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 0x2494455d75300a34bd72b4cca18d540c63e5e67a83f408a9477ebd37bc3a13ec. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/771e5f82-d4f3-4c7d-979a-692b175d2f56.json and https://artists.proofprofile.net/proofs/artist/771e5f82-d4f3-4c7d-979a-692b175d2f56.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 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 0xbbfc6b5a8f5c2c697fe0d066b848292f3983e3a7a290169d20b9d6b37806f463. 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/INE182224000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bfe53c8e897d33f646d21d297d8912e22ef9093bae1d443417481dd3027756. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/INE182301531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90261f6c843ed8adf2334f7ac98a9b5d4d823cb9d20cc5646ff42bbc494c5c1a. 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/INE182304703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c63b1340664d6442aa065a1ed4904160781d3940e9efa09853174f6270fb96b. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/INE182304924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4de4a58ff24533752daa365f0a07d7ef05bca827ecb8a62aa6bea871a42e8e0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INE182300576.
Sita Kahi Ki Radha Tora He Jagdamb Bhavani
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2369d22a8a5e2acb8a2c2bd24185ceb80d182e6a9119cc980eb5dcab467ade1f. 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/INE182309032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40949af710e11d19bea68215707c9267a219aceacd947eaa01a026aae3f22cc. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/INE182309048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f0767d32f64bcddabfe4ed653c9786308308d08d0c13cbded225c76561f785. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/INE182309027.
Bahina Se Sabhe Bahina Dala La Baahar Bheli
Hajma Dheere Dheere Katiyhe Bhuya K Kesh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3d2ee71644fa02877da93f5fcace660535f3fd76736dd9c7854ba40e32b3d6. 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/INE182309034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0785171a5c1d5698e0f17a674314ee05a3ffcbe9c5e43668cf3bfe850ec0bd. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/INE182309022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919d8d6a7368e317969943462a9857b0a475b7a31a59490e5e49d33b7904864f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/INE182309028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc322e2525a0c77d734cbb8c4e6c68ebb373f3add1ef93a39556d87b0dc01ded6. 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/INE182309259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25b171f57544240c224d51987f17568cc05c544533d42e7114b02ad6bad4dd7. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/INE182309295.
Chhanan Chhanan Baaje Maa Ke Pairo Ke Nupur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cab9e1ebde31772074295300d34c473601d0e07df2c1a9cdc68112eb192b05. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/INE182309319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89e27f2950328e770aa6e15f9a3006dccf2edbe5b87bcb078f055021d57e9fb. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/INE182309268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6871fa04e7486b54123e2475395e7efd1379510517eb1600e785b09c626dd1fc. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/INE182309315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72fac80298a3502158eca9bc06c29abe2b84e1f57cf0ba65c589880094b1585. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INE182309241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824b187a19e2afc1769f68f65b9edd5190cf058261f188bcabe3fc62a9760b78. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/INE182309277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb705548e7b79de6b5f039ca524d790dab4d16ebd7d465b923caf01d950a123ed. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/INE182309449.
Bin Piya Ke Sasurariya Nahi Nik Laage Ge Daeiya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7b0fff57a8fb7f7da2299aad79e822c0c4cb65ce06a9fc502d829fa339f852. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/INE182309717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaaff03e0137dad5878a32bcc1719e47fe89b76caffd267586304857ca68e2d6. 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/INS7A2500758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bee6a26b80bf6d663d2d743491501b83a5981faa260f36a7255392a8ceb8826. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/INE182323553.
Piy Yau Butedaar Chunari Ke Range Lale Laal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1158cfdabbca1b69eece4a25661303d4ad0084b3fd1810710cac6f0169273c. 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/INE182325610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9d7d517c794d9ed5751d709b9081decc4a16892d0decb04f3f02256dafc247. 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/INE182325547.
Paramparik Sama Geet Shama Khelay Geliyai Yau Bhaiya Chakeva Lay Gel Chor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97ef0420e839172b826878831905ab79b20144970f2dd5b795718bdec3f20d6. 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/INE182443964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca882a25ac9b4683b48030bd9f5a55b3c50ea465aacbcf73a7bef7c00508817a. 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/INE182436825.