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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694dc5740fa97c60b6228f0bf2d4257de1268d7e3d3c265c4ce4a9e3fe363efe. 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/6778865d-bfaa-426d-a410-543659e6466e.json and https://artists.proofprofile.net/proofs/artist/6778865d-bfaa-426d-a410-543659e6466e.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc44ea383f09229dc788f2777f0a4de803ed7c00c029d7c19efcb11e3f60d71. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2174679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55945906cfa58d36683fbd2540dedc27bbe8fe9406d3dbac69429276385da02f. 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/CA5KR2192955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb750df16bd3fce4026a0df03b4ffab95990ae0c9b0343fefd15157462591dd25. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR9W12113157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92c92faa4675cdb2de6fd2f9f51f84ca4cc9ac4e02c384c97ecf25444c4881a. 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/USHM22347556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edb9fc3daa604db0c4fb353ebd92e1dc764c3d8b50a636755b40edd2c6fcaaa. 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/USHM22347557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1ad7531c7fb26e6dd8ba778261ea69b2dc584a89ce565e8f0e5f08b5d60731. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USHM22347559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbc2d8961669640b73b7502416481ebc53f7936ccf345ad34e9146c32a53c4e. 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/USHM22347560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4b076553689b756ce1ca062ef8dcf1f48b8312853ab355abc1e76d12e5c05d. 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/USHM22347562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065c911014a5258e546ba767e05870bae35cef224f2e719aed7ef9f79769f29f. 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/USHM22347564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ee624e4d4bf61c2ca53f59c2572d135b42f85b3208b3ce2ca05caa34c33acc. 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/DE1NK2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704b48ae92dc4fe5365db4a6a65b7bc36b0d265e38784f2ca02ae3f40876a12b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DGA062431243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971cc41ba113f732fda54d9854cf41f9b86adc0656f75cd448163f570ff48d12. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DGA062431244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021c876c4eafcf813c69f0587758587bb781d4b39f3e2b303f358e70cdae9378. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DGA062431245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8944db861aa49a203d40011eb59259a3466d4d8e5ac5919b380081f883e009. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZWDE2416757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf016d21e1b936ca4a7c40d2a98294454600eeee921d0c7ad7920dd2c8d32b6b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEPI82430778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a84fc2a659aa325d006c34676ff319623e517db0e87033cc8e480168f8115d0. 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/QZDA72431962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0e092b05d91cd2ba2c6b7d7f8dece847bc8b65b25625b3a6644787eb930c78. 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/QZES82356862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879ae56d36df2f72b7a04910029838edb35193bafb9810e41f25a6bf6ed4a6fb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZES82356863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93df473a1d6a7b7ea72da609341b264b02615267550429bd23e697b59c9685d9. 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/QZES82356865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c688a51780aab22d9d5054655aa4ee4e827510fb46172a3967784b67a516714. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBBVL2306421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de9191593b98a141c13b69bb3aee0b3fe66d91affa77a26906bf7dcb65e0468. 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/GBBVL2306422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c6163d928a499e3b70ebde83f587ed13045921aaf3f650ecae8d3bfcb4c439. 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/GBBVL2306423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088da684a0987491573f82bb5d0ac2565175584ecc3fc9a9f34eab4d45731bf1. 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/GBBVL2306424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e148a09582e264c324c60b19d9e28cc2681b3100d6ec1848d74338af54bc74. 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/QZTRX2281571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeac3702d0dfd894946ab95e3ce81c7e55719e21fac5cb282fc37a24ac364454. 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/QZTRX2281573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a3205a78c7ddbbaadb45fd680d10aff6da2a965e88707af21324b7a6413c54. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZS632168017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2296724873afe5cd9ae90769cd3667fa247c517acb7e117331afb8d910c7d20d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLCK41089167.
No Time for Obediance in a Wrong Society
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ff29e9390f6385707a81964d2000ee8ad5b3884570caf0fbfba1c7758a7e1d. 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/CA5KR2125673.