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 0x2329cdc45d0480feb104b319c097c37ef520ce95c3c448d6652f7ee080a7a37c. 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/355625da-f71c-416c-9690-0ed28fdd35ec.json and https://artists.proofprofile.net/proofs/artist/355625da-f71c-416c-9690-0ed28fdd35ec.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 0x1aed9e4effbd64fb2f02df232c3498a498136a594fd4bc6f0b49a26a7aade44d. 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/QZN882274999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe59371eed5b326c49833bcfa4ee721de26cdb391a6e65fc9cf3654d8c063e8. 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/QZN882291073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dfb808b21f17f4d4f6d6d550119e9457b56810b33e42a8d9dcdad8bbaaaac3. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZN882305165.
Teri Dastaan Tera Astaan (Balaghal UIa Be Kamalehi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe278d33c139b6187b27da8ec5fc9980a7b1574da875e8d6b441aed1333765fff. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:43:20Z), 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/QZN882412805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf102c18b2e9b42defdb20b30463646337270133355c55fd20c0f2a784b1e5ee4. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/US38Y2551386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b05aaa662ed0ab20906b8df183778d4b12fa4ba90b30802e131132f0224344. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:05:03Z), 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/US38Y2574404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb470c29ab47331e9d3a77cc255338e93289aa2de9abca0985b7650084708514. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US38Y2574400.