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 0xd31f15372358f8f62d49ccdbd050ce0aedefb85e0e52e05b704cdb7a62352930. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62e94b4c-570f-434e-85d2-5611326854aa.json and https://artists.proofprofile.net/proofs/artist/62e94b4c-570f-434e-85d2-5611326854aa.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 0x8dbfb07a9bd2e3d257ef083d67f0b3ff99a83f8f285cb126ac7e3ff803607549. 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/QZEQU2258231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dfce32718ed269ecc1c0da99b07b5063edba8be57c92c27217a3da544cf74e. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZEQU2258232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bdbd0c27832b111569816996c60cad38aa1d59f0b0c34b97914ae25b6162dc. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:15:38Z), 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/QZEQU2258236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747793ccede50311a8e4ecec4d75947413408c3c4f0191c277e77d7b463150aa. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/ESA112313436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466397ea4e24139d138b78ae6aa74d84ea14c9328226e49e3d0de741f5e9dbe6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZW9L2394985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be60625822190e89c77ab1222272a3ae15c99a84f212cf2fd215818b5dae028. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZW9L2394987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a14810b483124b609c2c85dc85f45c882b5d8c0b9165294bd618c176836fd2. 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/QZW9L2394988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfbf05b0394833489b471716c0ed7480d94df27f6d0f9960710e5bd66ea1369. 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/QZW9L2394989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad99b05eb6b6c86fc065491049c2db047a14de3052a52b23ebde417ff8cc3dd6. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZW9L2394990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf912d4e85efc3d5c7eaf2eadd7a50195ec837b1332783335fd23d8dc0c867fe. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:27:35Z), 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/QZW9K2415369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b8139a01bbee8597927bad1880fdce6cce4d83d054fef5a33a73d58a90b16f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZW9L2480984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7239d33a285fe259ff572549036b45775f316e04dc8b6de6e853896b03a5871. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZW9L2480985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33442fa4e2f9fb10329a774960f7fc85edda3593f08a7f3361d2b612287a5c4. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZW9L2480986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604f81a0863073499512be45930eecf06bf9493074efda5da8f10eb97ffec4b3. 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/QZW9L2480987.
Vida de Caminhoneiro / Nova York - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81533ea13bbdae173986112dc4ccddb68a649745db7df563c7bbc574214daf53. 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/QZGLM2575726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4cdd8eb2127e13f08a8376ba940950b6b7e23e89dab0d797b99ce99d97a880. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNJZ2590503.