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 0xda98fa8e7b9be3aa0bf13497860e560eadc8a4aa0c12972c868d768ab74dbdc9. 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/e0b075cf-2ca4-4a8c-bed4-c391b674e3c7.json and https://artists.proofprofile.net/proofs/artist/e0b075cf-2ca4-4a8c-bed4-c391b674e3c7.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc587cafa5834cca10b18f71ad46ef43f91a26aab726484b5222d0731eec838e8. 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/INP692000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2c9654323721ea4ebb11d4a418a3f1dc45745b0bbf79abdef0b9c66a3e82dd. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:05:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INT132200439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03355edf070b84fd4b7c7f1c8858b25e52c4fbeef39286cb12768e2ce8bfeaba. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INB1W2200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435e9d4258efd5446bdc9b6d158fc9a10b352fa0ebae6a36ed7ca239a73f5d1b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:31Z), 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/INN242212295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4f17da5a03d6a12b0404c4a0da41ff8fb315b0315857c694f288053e36486e. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/ING212309702.
Ardhangini Title Song (Abahan Theatre 2023-24)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df0209a19cc14cae5e9a6901547c1e485084bb5dee620add7aeab282f141ff3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/INN242312423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe6c2472c6ea7919005c2d4d642564e134aa4bd0e46ea306ae2b0361d398559. 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/INE302400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9c6fca070975a050945f3d19bb095908f12fa8c7fe78e5895adc6efb3beef7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/INP612401091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2aa5b87c3285b383867729472f087473198cef7e2c196fae6e8d8954303832a. 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/INN242416094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56580a89a3d21fa0574c2c0fe25330a3246afda10c2e7b7f3fb428a117018684. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:20:53Z), 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/INU312300186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02f8ee96d5330593e8aa69563b85b559622d1cbf1a77faa386cbaed6d25d2c8. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX452569362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac61eca459b5c69e4d03caf0fd5c0c3cceb6f57a99940d30a71ad803040d369. 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/FRX762534323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eab5a01bac3c1b01ff5bcb4e7bb2fdb7a9182825068f6f036bec56f25d25d80. 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/INJ562500300.