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 0xf61340d5a6cf916a6857777325718e9a959e5704fdd2488542c677d5f1e0b1c7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85687103-7a3c-4843-aa57-13a15b8d21db.json and https://artists.proofprofile.net/proofs/artist/85687103-7a3c-4843-aa57-13a15b8d21db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Noor Mahal (Original Motion Picture Soundtrack)
Aulia-E-Islam (original Motion Picture Soundtrack)
Qoowat E Parwardigar (Original Motion Picture Soundtrack)
Mohmmad Ke Ghulamon Par Budhapa Aa Nahi Sakta
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 0xcb986ca0664f3d751404fcb66c98d1751c148d20c1052e87da138c960140ec29. 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/INV119100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8655f4a04534d01bba3d97ca25d003997212f04497c2e2a760371a6dea769679. 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/INV119100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf847a53691afca463ea9c67d58670187c4feece35263836b29aa7b6d322b050. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/INV119100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bed220df93990ae561f0053130788f49f7717ca5a6ac5f3a53fe552544c3fe. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/INV119100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb59cf329a33bea53bb0ed241e94bd2f70a1028959e82f3a542fc0a36242b704. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INV119100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4322a09e3776af34612481433b42057fd643790fc6a1745c02ee588989afc0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/INV119100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db3ab0497c23806ff96fa7dc80008fd48bddd183a9c9c7988e945e555cb3392. 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/INV119100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353f0d376cc9c007cf69f11b7bc36492f6b20980ce431bcdfeec95083345d761. 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/INV119200796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca965aa801e60aa1f5f4e230511bdf35022fb8f46705e4d48ec686a060e804d5. 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/INS189470143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdffe23829fb61405c32224ecf7945e8af38d660ac322040f48b2a4a85e09dc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/INH101607497.