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 0x8d269e62e2d6924dd9d58a7d816a8faceee71f3a136035f3fae1f74de710ca95. 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/30a374a3-a4be-4254-81d4-812fc2f970bd.json and https://artists.proofprofile.net/proofs/artist/30a374a3-a4be-4254-81d4-812fc2f970bd.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 0xfecd4889c3bb340d322a273da950a633cb9239eb3cf1b7b5cf881cae448e217f. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:21:30Z), 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/INS231901194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd84b3abe6b3d47aabdb079c669eddd77b937738e2e81f0295d163e240a0f9c. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:32:56Z), 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/INM432200401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8337015eddc23ecf3ee392f1f2893657f4db40588224ac53fc8a102b5152790b. 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/INS172204320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6de5f7ac178910aee841de4d9c319b335c21f00b17345352e676b8c6bc8180. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/INS232006892.
Tu Mari Jindagi Chhe Tu Mari Har Khushi Chhe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51be0afedb7f016993b13a86eb2d9969981662eab1dad605c130ec12933a043b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/INS232205863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36301e2cbbbd042e7b9f9da82d9873ecc73e46c37277a45cb830e56f253c77ff. 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/INM432400405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21aa58e3c81aacae80c1d1e3c7a58a3683bffb4137bbf6a693813a391b246bf4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INS232209835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bcf0187b7f9acd52df9b4c47e729bc62c07a2d67f7c6e80e165e64e55dad3f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/INS232210188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7208bac6d3e12907865fef552e9412ccca13e9a237c4972035347f07afa482d6. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/GX8LD2580610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245f302c986e708c12430ec6391c79619dcb69572d457a80420579cc7dcdbff0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX8LE2592689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb09001c4c40d0c49737e0131a60b9f73430ee207c65f29e4fb03eaea06f657d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX8LE2519125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49613cb2cebbae9294408eff42a09b456407968d0ec9bc539f183ae3c7541bdb. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:50:09Z), 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/GX8LE2507284.