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 0x7104aad299b4347498a8d56b89a220e4d6cca6bd798039aa7a6f671bb08954a1. 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/0c3ec9bb-9be0-489c-81d9-96bee891688d.json and https://artists.proofprofile.net/proofs/artist/0c3ec9bb-9be0-489c-81d9-96bee891688d.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 0x853497d759ee98224fb382b161a35ccb24404fc43ca4f74be55ddc3862f90d92. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/INT502007486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5ae91d1fb6095d4ed36e7e4913cd83e4e3eb9a530743b0ae11bcc2a9e5b84b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/INR732000768.
Facebook 2020 Ki Sabse Hit Ragini (Haryanvi Song)
Dhunge Pe Bandook (feat. Nk Baba,Sonika Singh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9ec9e35e2525d57bc21192dafbbaacd6e45b28af00ae412640a61d04036e1c. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/INT502205299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9842a4a881015988f0342647d094e0b6c17db9ae99b92f16797deb739f99e755. 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/DGA092217533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae4a9abb3bc4a5c5c2ed58e3e061389db7edec7791fdbcda77b770304683ea1. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/FRX452396458.
Chaati Ke Lalu (feat. Gulshan Baba,Sonika Singh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f13ead77aad940e37c8a26764a4ff67bc7d5ceb08d836f0c13ce01a37c72cc. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ING642401430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280e301d61690466f2e3b5ad00b2ef6f70b0d5aca22631db40b046ab169a5e5d. 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/INT502401798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc967f966ed4a3d587e491918d508bbd548c408e0cec89a41be6383e2b98f413. 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/INE182443581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576baa3e610e2e30f2bef80d317238791fe635ab9fc5f8f5f83c2df4447b32a7. 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/UKJ8H2501153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaeacf5d370e06ad00faa8bde6cfaccb6b8962a0ae47757419f1f9f8b12544c8. 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/AUBEC2578793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca34fd51a94f04efb6b233abb084450c01b129208ba96659906edc112fc4a5a. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/ESA012577726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0fb2dddd445749327d627c9d2758bce3353cbb74dabb32f1fafe6fc8357dc1. 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/UKJ8H2406145.