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 0xcd47ab4bb06c45ab7f7fa4a76161a07e43a41e7d9e5fc5ae0367ee8dd08b00a9. 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/6b2f1fe9-6bd0-4f26-ab0c-413cd34423ff.json and https://artists.proofprofile.net/proofs/artist/6b2f1fe9-6bd0-4f26-ab0c-413cd34423ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Personne Ne Dormira Dans Le Hood Ce Soir
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 0xc7a19aeeacccb0dd110ccf68e8c70657897aadfb78e8b66cb21ba23fceba0acb. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:45:12Z), 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/QZTAY2384167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b47becff0d7a7cb7ebcb3f88144c11aafd5f1a60dfe70c607747452bcffe36a. 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/QZWFG2304231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ee4ddcb1721628eb7d073747b6fe0223b61731cab9104fe770d88fa0cdfa9e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDA82403455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d318654dbe72dc2fcb8ad0108bbb23d865da81332a5d17f174b95035455b5e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZDA82403457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa178b85c407e35ae643d55a1540818be2b1ff512fa644d7981435758271421d6. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZDA82403458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef569c4b462104be79fea41522dccad757b394102d94a1149ddc46fdb40f33a. 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/QZDA82403461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec911b5a697f10e98120984c9cb5ea6698b5f56ac29ad3a62548f94b07980c90. 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/QZNWR2457457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13a6e3f239a48cb0c9e6a96c871ddc60874c16d03eec0710beb0a92ba9cc3d0. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:40:58Z), 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/QZNWV2488941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06c269e4a1e40cfe2f456751395cdd80c2544c94185343e336868b0a532aa10. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:18:12Z), 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/QZWFJ2435447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5bbc0732eb6f47b7d3bcc296d945718e7b73bfd09344a4bb1ec0bf022761fa. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWV2522135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3305c12f9fb7edbd564db8caa9189b2c0ab105dd1b44cfc368462de67aefd27b. 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/QZNWU2311007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e809f51739320c4d7454084faba30a0ce66a618b4c3196ab19c409d63604bf2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRECK2400550.