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 0x5780ea243de33971e4ccf77ce131b811a6b2705ed2e9b42f2ac1dc94b730f747. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/673c1af2-9689-4519-adaf-f9d815d4947b.json and https://artists.proofprofile.net/proofs/artist/673c1af2-9689-4519-adaf-f9d815d4947b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Struggle to Find Colors Even in My Sleep
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 0xe5be566384403b0eaf3fd813226c14456646266897b6e3fe851ebedd67432fb2. 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/QT3EX2469221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe950c9b5047a835d019099e44b5e606774d413e9ffa0536a2fd5b5382893d06. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:22Z), 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/QT3F42423889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddf460950290ba540ae293720df5a0921e1049f683463ec8e3788ea342a6f30. 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/QZFYZ2551484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295c7efe1b2ceaaa48d93f69f2ccc21bfd35d513fc94ea9937ef6592ad46167f. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZHN92571786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099a00ce2caf18f8345548ed3864a860749a3be95215963d396c2af884cd5b90. 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/QZHN62517154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c0921d7d90dca299eb64047538d0adc7b80f703efa909de14f12de12dd450e. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZHN62517156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754a3ab4fae155157999ffac8e3d2760828165874eadf48f71fa7b2f2accbabb. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZK6J2519487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786eba60744377c5d1d0745885eed2bc08a1e458f19f2e3194ba5542f06eb582. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZK6H2548433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d7862fab87296f09a84c1642d3951ace84a023774b16ef353d2de993606c74. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:45:03Z), 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/QZMEN2500320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc074ae3009833609e0cd306e517209d13c4927d317023b803a81077f1906f366. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMEP2583349.
I've Already Been Dead, Ever Since You Left.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcca496703b242118d049f663babbb94dd0d85f3a745100e27ee39dd499cdb63. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZMER2531622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76f3024404a4494a5afff7a3028ccc370321a2b143567cc87b8985bb6bdf600. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:49:56Z), 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/QZMER2519427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafab09b291cfe35a4484b49fca163877638c267359e74f6ea268336e03b4ebc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6F2542833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c93602f1ab0a719572b54fe0fbc23e4e8df009d29c0638ab6619ef0e6a62d9. 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/QZNWV2593456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9eece4cd696a701298621bdbd91ca21a0f45dc0c01c5a658a4765d105e336b. 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/QZNWZ2522748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd30336f3ce23fbef69dca0e51f3cbe197ecc4cbae643994e10da83d6feda0aa. 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/QZPLS2547147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004456e9680f01095b6dc170dfe2216b257dd08070b351a40b5fd4ccd06300ff. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZTAW2525388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1ec639500b514596c02a5299c7abfa8675fca3073eac4c09cf8bc9144d0b0c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTAW2525389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd29389dcf3eaf24f5f7a5b13d7e72b135936d1508157d1b24825f5363459002. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:41:13Z), 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/QZTAY2581250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd362337cfaa7e5f09cea755c6ddeb98238bc5c3ca14f491ea0e961c9ec07ade1. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZNWU2589164.
I'm Not Quite Sure If I'm Doing This Right
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f87f5f601909efc60fd5f8774fa11c933c2128f3484a6f4024679e6186184b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTBB2574052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f80147ce992bcb39e8d9c1dc7134b16d1b4f780ea853ae0a3458996315c71a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:18:16Z), 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/QZZ7U2529947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8319d6399a88be65ba6d27b1fb40816fccd1b8dd1f5ed1da36aa8ad321679999. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QT3EY2556304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abdf5dd4b6eaf21e167fc83e58003a7c671df0ffb81a138c4299f5b47ac97b5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZ7N2561230.