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 0xddc614b3bc368ba418277f51e380959c7f6e840cc48deca31e81c82ebf2c02a2. 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/0c04deeb-faaa-4632-bb89-90d13f22c889.json and https://artists.proofprofile.net/proofs/artist/0c04deeb-faaa-4632-bb89-90d13f22c889.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 0x5dbf7c72a5eb1e78257246c127bb2de56beaa73bcb3377c0a235f3a44bc052b8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZES52415764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3c48247c6ed6b70adc842f07b3b768885d50259f6c004c86de03eba14f1188. 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/UKZGC2200589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bace1b9e0350cbd597b248512d9010a66de3627ba2a98798de15ae0d408432e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKZGC2202412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d04efcc0a86acf7ede8f158dfbe8e71ade0768ffb6e962d903e0cc05ca175c9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMEN2060826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d55b965ad9ff77d3fc0b04a52b0358409cf1582df08f1a7cb498796295599c. 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/QZFYZ2017470.
i feel more like me when i'm not with you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589bf8340eff1de604ba3e5d660897ba830dd5d5174726da4f1f8448439b6d94. 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/QZTAX2331724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8969d05a4fae50b558bf2ec3161e8e0805cbbcd947d49f70cf35692fa5b815. 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/QZTAX2310362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff14de11ee41e6d9f044ab4d7dffd91765795cf755786daa29d04cf2ae34f7a9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTAX2331725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfb2398b463e8446da1cd04d0744a73de8bfcc0cc0e7ccdf2fa33d9305f6961. 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/QZTAX2331726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8969d05a4fae50b558bf2ec3161e8e0805cbbcd947d49f70cf35692fa5b815. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTAX2310362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3100d9e61b5eff30c77a412485543513f9c3b1bc0288c6b7faf33294a49fa280. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKZGC2203310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb12ecfe864b6a7e1d4c07936cc8d18de1684b8796398787f813433fbeff887. 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/QZFZ72298139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0d970cf5831302c89c28361d33e8c62702aa04fd411cc7654fbe0ce0bb79e7. 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/QZFYZ2237206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3790ba460263b9af6d786111bd08d85eae239b950abf5a71fb652af29cba4e91. 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/QZHNB2166946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb663be57dbb3510296b79a05d13f240eb9c07f897fce6936ae3e2d72d789c882. 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/QZDA52190462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a67aa5fe42973386d921b763d1a978d0ce9747ad0fba73a66ff3a3d1a8a6fdc. 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/QZHN32029424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c3939e2fa324a43cfdee63fd0ba1091f935f47155a60131bef78025870b101. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZHN32029426.