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 0x8b01249ecc31e24f028ba8406516801778da1596f8f0d3ab48d58e0d376c1946. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b7b4496-6397-4e3e-a75b-d65dba0704b3.json and https://artists.proofprofile.net/proofs/artist/7b7b4496-6397-4e3e-a75b-d65dba0704b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Iraivanidam Kaiyendungal - Muslim Devotional Songs
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 0xbb3375ce2159c3d41372e3fcf9fb954e6110a3604298cc9aa761ce7802a19358. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/INH100303620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd425bd69f6d92924ee6e87cce469976deb30991c6116b8dce0f9e3f61b277a87. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/INH100303680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59171be0ac8f9b953db040d0020f222dc8dab5b2e950eb1abb3e99adf6e5327. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/INH100303710.
K Mohideen Baig and Isaimurasu Nagore E M Haniffa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b392169a54f5a93743fe93c4e9cba9acf39e64a9be3af3a3bd0fc03be2c000e. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:58:35Z), 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/INH100506296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c417f5c58aed249c298895c44b9e63218fffd3e3b8b065346a4005239d067c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:29:39Z), 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/INH100506297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7217abe1c3e971baab47a07bb578d7d652176e05cae042a50558a69f28fd8895. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/INH100506300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2941875a3d9c7f2d3d6b2f3633f83df477dff8653be318802640bc66a297eb. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/INH100506301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635d61bfefcbb411db2ac3bb143c79765ecd88cb8bbf0a34e265caae965c1121. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/IND291816679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa040dcf75f03fb24b8dab8ad929cf32c3df1d6c034ffd30a1c823107eebd17e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/IND291823066.
Paavangal Pokkidum (From "Makkathu Mannar")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3a1289642cf8fe2589e3e6b3ce00a72213386ce09435cf10b4d6c0d58e16e9. 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/IND291823068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b392169a54f5a93743fe93c4e9cba9acf39e64a9be3af3a3bd0fc03be2c000e. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/INH100506296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c417f5c58aed249c298895c44b9e63218fffd3e3b8b065346a4005239d067c. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/INH100506297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a7ebab71837956c859fe25f5f1186cfba965ccc3be9cc4d0cb71367622057f. 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/INH100506291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ef9cffe3252592817c0c288e2f260d014aa8edcea5ab7f648e39989adab21d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/INH100303700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea61a645257d4a8f10f0d3e69d57d160a2c265d7ef1031aa3d3668b2595923cb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/INH100303630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc22357308afbd68df0c61f2571aaa1abb6d2bb93142ac9daa180f14c83afe2. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/INH101100577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b619865b92d57027c460a8c7cfd4445885768ae27d6643c5f33eb91f31f706d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/INH100506303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61cf8783d6663c904e1b14a19e54798dd6efbd9f947bbbec572f4e0f7e65622. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:49:13Z), 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/INH100303660.
Endrendrum Kadhal (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf297106c217fe8b720ecc660bd438c9918f8025ef8ef082c6f419761024601d4. 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/IND292214028.
Chembaruthi (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2e1fe66fe5cd323b58f63d61a94b359c75b9cabdb78c899bd577913bd3e091. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/IND292214566.
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