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 0x26f787f655ad5d731f05997adea10dadb5aa2b03973e6c700c86739dbacafdc4. 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/58015d3f-85de-4c72-8aac-709830446e95.json and https://artists.proofprofile.net/proofs/artist/58015d3f-85de-4c72-8aac-709830446e95.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Jhajhalko (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 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 0x79b422b1a90902a67103888669c2ab9d91f7ba615b8c506294a19686e18bf469. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAPC9610755 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff681f3bd65f836bff98672d1951945e3a8e22c533e6981e5268f0139359d4e. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAPC9610756 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd300edc8244a7cfdf2f455908b05b2457ef38a750ca9f04b4315d7184fc37968. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAPC9610757 — a six-check JSON result.
Garib (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bb31574fcc5272526706bb0e612504106fd6889435fc927afde19c15263701. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAPC9610010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d42ff1c68f6ab17206cb17ea502765bcc2a37a0bd85b0f5003bf772f27c34a5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAPC9610011 — a six-check JSON result.
Allare (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb523b1db13d9ae9ae42a363eff5f83c2e570a3594c3fe44f4cf3ae60f8cce0eb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62379202 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aac6d8054de107f37ef021c642f74cde4afb542f6042c6e8a93d9c28e8e0fef. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAPC0010563 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa005c67f09b39469fb8d26be6f0b5d29c4260d6ca5f1e892b1aac2b00f5327c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAPC0010565 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a68d68a326eac68c9a8b1958b0c36c2ac5fa1be9bdd577d5a8511661859c20. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAPC0010569 — a six-check JSON result.
Kalo Choli Makkhamali (From "Yo Mayako Sagar")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0685b3e47e98d31797407efba46c32e17552c985ecde106a9241ee6e1cc52c39. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P42373556 — a six-check JSON result.
Lau Lau Aaye Lili Laai (From "Yo Mayako Sagar")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f255fbcac4fd3f2a25f66ec7e352a38e80591b9fc9b9e2ba381a7dddebc353. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P42373544 — a six-check JSON result.
Chatta Rumal Kyamalu (From "Aafno Manchhe")
Biswash (Original Motion Picture Soundtrack)
Muskan (Original Motion Picture Soundtrack)
Agnipath (Original Motion Picture Soundtrack)
Ma Timi Bina Marihalchhu (Original Motion Picture Soundtrack)
Hero (Original Motion Picture Soundtrack)
Ram Laxman (Original Motion Picture Soundtrack)
Mohani (Original Motion Picture Soundtrack)
Maya (Original Motion Picture Soundtrack)
Sanyas (Original Motion Picture Soundtrack)
Sarangi (Original Motion Picture Soundtrack)
Shorha Barshe Jowan (Original Motion Picture Soundtrack)
Sajaaya (Original Motion Picture Soundtrack)
Truck Driver (Original Motion Picture Soundtrack)
Malai Man Paryo (Original Motion Picture Soundtrack)
Jangabaaj (Original Motion Picture Soundtrack)
Hami Teen Bhai (Original Motion Picture Soundtrack)
Dautari (Original Motion Picture Soundtrack)
Yo Mayako Sagar (Original Motion Picture Soundtrack)
Krishna Arjun (Original Motion Picture Soundtrack)
Khandan (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b86be05a423169cea6d55000cb5fa69f1105bc95f0bae80542f6b95d8a91d4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAPC0910283 — a six-check JSON result.
Malai Himchuli Ko Kasam - Jindagani Movie Song
Jay Ho (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3aa8d199f5a97d9334c34a2a6d03beb00d8eccff2383c159cdca057dbdc2d58. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2339088 — a six-check JSON result.
Ko Aafno Ko Birano (Original Motion Picture Soundtrack)
Chauka Daau (Original Motion Picture Soundtrack)
Buhari (Original Motion Picture Soundtrack)
Shasan (Original Motion Picture Soundtrack)
Kahan Bhetiyeala (Original Motion Picture Soundtrack)
Bhagya Bidhata (Original Motion Picture Soundtrack)
Narsingh Awatar (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46719d7d1402c814d3f7e6c531c3714ffa3b18fd29263e79bfbcdf26e8b73d07. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NPA0D2541869 — a six-check JSON result.
Achha Lekin London Ko Chiso (Original Motion Picture Soundtrack)