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 0x7425a02feb927cace13e31661807547cb4cc8d9bc91384b61337cd5927c3f6cb. 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/9e90b945-545b-4c83-a37e-493331faed04.json and https://artists.proofprofile.net/proofs/artist/9e90b945-545b-4c83-a37e-493331faed04.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 0xa7cd5144ff14ff6f38616d7fd49d9718a08c69e7a8ac630abc30321c9b1c2774. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/ATT251710590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca6c93a3d1e33b23aa98b869fa101fc8ea6f86038298241a4e0f6f568b80ef1. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:24:13Z), 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/ATT251710600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7835fb9bea07e53b25d66146cec65ea49c86e92855a5c3c5d7cf2048247c32ab. 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/ATT251710640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22e64de057a8a4a5e8ce56715e75348026c242d85831fedab9553397b8d407d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:32:35Z), 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/ATT251811840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54d8805797c31ae9d5a1b24602413023aa053e736d460b415baa0b2323dfc79. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ATT251811870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff77481a0edddee6ceb7cad8ccd338b3900fecfc66f8da0612e035ca8ddcd7d1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ATT252005310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039e2d20f8a3c5b3e07fda29cfcf9de20deeb13336dd64f5f91a38c389229520. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:07:55Z), 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/ATT252005320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79aa7a3609ac97c1da2a2ffc55084e894483f61ac50bce4cf4f87eca57296e7. 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/ATT252005330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f6af9591f1752092c47c845fa629189781289a7f8ec9d062838f6ffe663c0a. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:29:31Z), 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/ATT252005350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5349ed9fb52506c00c3e015b1ced97c8776d5b9e22d79907d2c94f87a2ac1c. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ATT252206200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4cfbdea8f4af0543dd2609796adc7793d373f8c1b36982f9fa4bfbf4098fd8. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:12:04Z), 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/ATT252206210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b739a273b48993650e3d4420ee5d701359f901296f6ecab180a2010c302302. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ATT252206290.
Ich hab ’nen Bungalow in Santa Nirgendwo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98c117bb575f74b7c8d626c056d762b7db53806800d695c4af0599739bb0696. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:52:38Z), 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/ATT252305740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4756629787b9d58623b8239009d5f7af15e3eb06dcf1d49a9dee1e934d1fed. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ATT252309910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe116685f72c11676891ef7d01c64fa0216cfe8fc394d55eea60145040e95c7c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ATT252405930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf69b635e5e65b046cd078ec5c2b4d3809dac262edfddc2dc5c2111e8f01d208. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ATT252405940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f566cd30afa50813fd6f84bf5d8b494fc7f3894775b49a211be657cbffdccd2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ATT252405950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b94da9f2f455c9f7ffdb69be7c466e1bcbd30c10f6a34a7960efe44ee9ac46b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ATT252405960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98e8adffa25c3a02f86a4b2c0c34cf9534c80783a6649a4ef3c7b3065b65882. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:47:32Z), 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/ATT252406010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9266411078dd5d5c70810c425018f12db8b08d17fac48f82734227e36fc4ce7d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ATT252406020.