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 0xe3188b2bf2456d2fda4da92d09e4830c22c15f02c8a183eb25ea23edfd4d4545. 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/8722a830-d343-4b52-9891-0a4eab1c8780.json and https://artists.proofprofile.net/proofs/artist/8722a830-d343-4b52-9891-0a4eab1c8780.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chellamutthi Chellakkaa (From "Sundharimuthi")
The Family Ballad (From "Vikrant Rona") [MALAYALAM]
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 0x10fd255f0c88be8f2bd54488b197c064588cb02a85f740265cc41402d36aefda. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR2X42534168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8dd243306c7ae8fbdf4df5eefe9b7c5eadba6d52d70842c845cf5e03d39686. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INS182303603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaf6972b01adaa6fde249f75deb83183a6af30edd629afd7370e533bdce4717. 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/INS182303593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7b0e5af8ea86ba24e20f68fe4e9f1051cfd0aa549f79a86abb3c21ef48fd7c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INS182006830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe738576603e0335f2f3202f89a67ee2e908f8ef0031a2c97bdfdeb415991f674. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INT201801820.
Sardar (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29fb2b6e2755a326f76ae296cd3f68c798eab9dc6149e876972a48fdae3cd8d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INS172222422.
Kallanum Bhagavathiyum (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c29d7d3dc6a30dd2c597888546b27ef572c2539da5166ec09b6ca2f32381b13. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/INE130303762.
Angoonnengandoru - From "Rahel Makan Kora"
Angoonnengandoru (From "Rahel Makan Kora")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4ccb2b57d5a204852a0dcea77b0934a9fdc47e4516f9e629338a86dd3f3006. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/INM812300055.
Jai Ganesh (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb33cd5474507460894e203f7c4e08d096d2ac27accae6a984b06ebec8de979. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/INO332400009.
Hridayam (Side B) [Original Motion Picture Soundtrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe62cd3dad4873a600d3e7253fc8de61b76ab02d761a3304b4e542b89243ac47. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INT202202922.
Sayanna Varthakal (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5a9b7c982745399f9114f14c94476d6e09c3a5eab28762bcf5d225bb7a124d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INA982200213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8f367e9a3863638eea5cdecd086135edf38d4e206d6181c30ac4b4ad6e856d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/INA6D2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5a9b7c982745399f9114f14c94476d6e09c3a5eab28762bcf5d225bb7a124d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INA982200213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4ccb2b57d5a204852a0dcea77b0934a9fdc47e4516f9e629338a86dd3f3006. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/INM812300055.