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 0x93eebdc21cc45ec18ed4e78dd7b1bb58002feb8f895c601d64b5b6ac3f27ac72. 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/dc212220-0e4e-4277-abf5-58298125b8bc.json and https://artists.proofprofile.net/proofs/artist/dc212220-0e4e-4277-abf5-58298125b8bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rupankar Bagchi Bengali Movie Hits Part 2
Rupankar Bagchi Bengali Movie Hits Part 1
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 0xd75624109428a8e0fc78ae64578aea994e147196d4f3a1955ce821a3f5348f32. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/INT442000179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4797bbd5f0c7cf3c9ddc821aec39895d747d6e5edf3580bd304e419f49d1ff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/INA191600163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf603aa74ade444681c93b4fe58eaf000bad33f27fceb0d29607253960357af66. 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/INA191500153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd435c028ec7b415a4bc352c37f872ceb1d7c1abd3a3129488bb89576a48f1c8a. 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/INA191200145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ea9cfc089e56952bb9f9160d3f1933480daf37a6bdcac40bd4cc19e58bb35b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/INA191200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4496abb216450721d6e53ec06dd0d29cd43e30134c8013aa69684b310b59345a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA191200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe1b2e609f2606dbdf411144482946feec577709c70ceb11c000b5da4fc9313. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/INA191200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2bcd0fe2c862df12b19c1b969818253dec57bfbc4caf6818b8b21f3775f9a7. 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/INS181002678.
Prem by Chance (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd1143f54cce9afd85f07a864ffe029d61a0af3553d4d69e84dc1a2eef1177e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/INA191000159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849a108806410f7efbfc74e205905a26f67c372105fb713c42e8a05e9cfe6115. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS930804546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dbdfb8e261ee4d9f044803456fb24f1620de0a6e7cf784516b22a8552ae60d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/INS930804547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6054e0762ea7938d246dce46005c73bfd790bde8955bb7cc08d214621bc784. 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/INS930804549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee2e3e8a9056d7c61e89edefa647851edd10bd0fac0106392e906cff64fe7e1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/INS930804555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0415deb7a9f24c5be930a6402b8051b77b5aba7a8dcf95c7eb50db8ed5017f. 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/INS930804556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bd32bc00524a916e249b160c55a4fb97619b51eb9d593e1246bf444e665286. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMFMF2420901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd253e8daeed47da274cf3de0c12affcdb6c7e8a7e97f9b95c89cbf9dfcaa41. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2420902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34331011a2f30f0687f6203eb424a0f6ffb819c19cbaa68c37b3b104cc4e16a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2420903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4826d048a519eefaab072fbf177d878bc0fef9c285701c44c7b7db9560da064c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMFMF2420904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71c6e7db5a5a2670f2307bf60ce6e9a7c3234be4817c14894726d5a217dcd80. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMFMF2420905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37d82f30f1c01061b58beda8b0e9d235c535fc146c611422ab226906ab05437. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2420906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664b6cc41a48b0800c9c68c7e5fed41ceb103ad84d3cfff3135d5c3b6607b967. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2420907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8253b22a2e079cc77dc1b00095a75929dae1910aa8bc4b25f716a59ea9c5ae. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2420908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b3f88da44851c24775071cac45311eb0beb906410d2412abf5a12bdcdd8dd0. 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/QMFMF2420909.
Tomaay Ami Mando Bashi - From "Mando Basar Galpo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818430d5c92642d483355effadfd87028365b66a79efd24b6bb8e7e3ed52c3bb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/INA791500600.