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 0x4c70c79c3261447113c3bc0916606abaf5627a0ef0e438cd934a6c088a52955b. 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/e70f27da-b8c4-4b95-9768-59e8c6d67b04.json and https://artists.proofprofile.net/proofs/artist/e70f27da-b8c4-4b95-9768-59e8c6d67b04.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 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 0x5eebde26957df2105427fff3549c547ec7bc09f530cd784a1ff4850a8760d20b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FR59R1768276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff79fbaeb0f46d8842c046af3aa6f784dfaf590c4891a471b58219500056b43. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/INM432100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda26dd8409e7c3b5631dbadd73406d79cec0cb95f60500164cc4d275c99e232d. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/INS922100670.
Miley Hi Nahi (from the movie 'Laung Laachi 2')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224d0efecabae65cdde949fb3090cd4cf96c5521d23331c8895b0f3c4399ca58. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USA2P2236295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cb9ff6eea83f435160e80d6c38bdce70c9d26721809f3d3573321860e90572. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/FRX762234211.
Good Luck (From "Bina Band Chal England")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d11c96ee65afe6949d2ce5a1d9b83241b269e739bd49b0c5b77ad8727efdc99. 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/FR10S2470741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfa154e1ad0d7c91cefde7feee5d5b647ad05dbbf82d5fd3197217fa2eabc89. 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/FR10S2470743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc5d4a5f718494937997de60923e38de5896f69607fed51ab8d033062cb9cc0. 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/FR10S2470744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41bb97fba4ec4e05aa17b50a12fd97b371156355bb7cbddc11fa79e52086ca4. 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/FRX202465057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ab7037d2db493b1438f266c72f4b64778cd1eb6462966ebb49f4ead11503b2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX202462532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5dd0e11a55ada5f82837e639bb2beec6b79729cd72545da109974279f640e2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DGA0T2402060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee5b8e1e63c08f86b71b0c776d692ca5f29b6bf45b9a9b9912b1eaeec57ae2d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ING982500015.
Kala Daur (From "Pind Peya Saara Jombieland Baneya")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd80da8828992d9b5420c88c7ddf48717ec7f04f499ccc702bc203e4c2eb841d. Chain 2 (Bitcoin): anchored in block 956777 (2026-07-05T11:01:08Z), 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/INT102501318.