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 0x9b300c4ab9df413cbf29aaec2fba58fa4e3652b550a80617e690de0759832924. 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/20c8f6ac-a672-441a-8b3d-337e8fd06047.json and https://artists.proofprofile.net/proofs/artist/20c8f6ac-a672-441a-8b3d-337e8fd06047.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 0xb15c42dc061a214612fb5c2c2ae0085595f9347f97c9927e78f0d1e8a064c98a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLZ542200603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d402d55ed4769b217a4f413d513b90373ab67521163848a3ec079a82d16e19d. 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/BEIW12300575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9c645e2fb3829a299e0462b9877fe3ff591764b54485384eeb576fdc89d0c5. 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/BEIW12400367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2a9503eed8240108a59f400a37e9b3f893af76d17a0711f97e7d9d1d1eff89. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL9KQ2390222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de83cd0a78994bb72372c06298936b8459bc9ee44def4cb35b99fe057d8d57f. 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/NL9KQ2390405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9735588ceef522b8e6c6845dc2d71f9c29bbaca107cdfcf9d31468cc3aa702b. 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/NLZ542202434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f8d573744ec82ea58b9ac874055e8c4ae6847161e811af0d9fdb3fc2a45090. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL9KQ2390470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ded1f4cba380f8585250862f009555fb33fd00fae02a28782d7606192e83ec. 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/NL9KQ2390468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4252ca53a37e5e4a69909f1ecf6c36ddc482ed823b567d65c11c37ab7c3f60d. 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/BEIW12400625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052a2a06a9eefdf16edbc4a35770e061b069dcae4e76aeed31acfe63e2e2326b. 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/NL9KQ2390463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f3fb837f5d01bb70692ef56969b32d35bd13d2283e8f0ec128d6c7f5aaaa9e. 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/BEIW12400530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afb3c638a05c0cdbb210c1ada4c52b019dd4fb1882b2f69cd7b09ac040f25af. 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/NL9KQ2390419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe97616fb840fc4f31d68bac85ee101acf83e1c8d59d870cf36114c3e78c739. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL9KQ2390335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce248263eb924af12eddc6fcd61588b7c455faa6d3f23d38795a7069df393f9b. 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/CA5KR2442508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020ba51135bd6f642751d05aaec6bc6eca31086773dfbd9b5bc5de25c2d76874. 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/BEIW12400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6937f932707845fa3f602b226e7880f2c5638f2f0d611d96dbc905b774608e39. 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/DEE862400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f15155595ec11651a215af9d266f6cb9b0a65bdb4cba0dd354400b31ba200d4. 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/DEMA61907002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb4a87d9b3111a350c7186fa4877d26ba336b6e1face49ca2fcba73006b70d0. 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/NLZ542400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5669ec4933f8c76de1dab67b166c11ac0e1ac1701d3a1f8cc2d4713870976f. 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/NL9KQ2390146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a5afde0095d120f598a8bfb330b239633c4617e34990319007088dd9738d04. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLZ542302041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77be752d8e7255c46155f8bc76adb5ff5979f6c7adffd3495c4147a74c32e5b. 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/QZAKB2363844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1b57b0b3c0b8a80b263f394dad2ac4d930068578a9e91898a866d837a3def9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLZ8V1801059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9a765eea4b67de02c8748d672dfa86abdfdd6e6e7d9287fe4e71eab36e0a18. 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/NLZ542301252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02eecacb77c7e1cd0651386d60ca24913575109bb5be0c3d846fefdac463aaa2. 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/QZAKB2348285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6e429d27e2eeca7a10d4766671f0f9cf7437c159c737d9000ff18768a8eeb8. 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/DEE862301189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb971ec689c3197c45d7b0e310f05f71ba935a0bf95b1c4af87d412d170278a80. 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/NL1ZN2302410.
Cha Cha Cha Della Segretaria (Extended Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe297cfdc8d3dc2eedc8042ada08a164f07cb562b8811a896de60f1e360cf2ba1. 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/NLZ542300867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f20db344fda60615640368031ae3e2f4d8cd80748bea11d2b688b6d5de5e65. 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/NLZ542300764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f646d4f402ef0bab35008352f77abbe0bdc8568f5eb2fe5682c5894bf0eaf4c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLZ542300763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a5f0654902b1ce179d57ae07bb6931747ac38100f7bb8fe86c5a27821810e3. 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/NLZ542300614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a6b74dd5dabdc7b4ef877b26d52febee18780cd896450e00f99a8a4114366d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLZ542300613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63fef865d1c1966d6caa3f5932a997de523749b4c0519123f9c3cbe15c0d9b1. 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/QZAKB2326369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70e9e97c65413ffe802ceb8c60ed3f4ba61c3d88ecd2c99abbfd0695e31be95. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZN882361573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b3008a2927fa022699b2201c51be6e729068e525ce98068d2466f2b539bafe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLZ542300373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6dc27871e413f35fc4f57f039e89f423744fdc248a527584999a7449b4f2d8. 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/NLZ542300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8abee73964fcd700670f7e25a0098a3a3812ef380baa3aa74a9fd4d7f774615. 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/BEIW12200669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f63346c70ab5bbea53e8a7f5ac81158e85275789fabc1590d47b4effef45fa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL9KQ2390624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d1aebfdf4e2b1d47542c0d2639487f74c14146c743b0fb31d0efd7cd8ef37a. 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/NL1DT2400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12c6bf7a8a9245664f83b92041b58ebdfa4e26530e3db708e504ff1400b4c52. 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/NL9KQ2390535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e8893d3d9ef94efd1f0aa0182c911d4408cf2b06adaa6b7a361815675ded96. 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/BEIW12400738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69c9a4463cb863e02952ad1c270309c1e13df03e523058ccd9c5981ccd6476e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLZ542200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058443429d37181b049d62e6a893adbb4ea8801849786c4cae20bc641eec7370. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6N22139415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c247b2eb30e37277479ec22a7a28554bd05eee901776418d24b550f210d452. 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/NLZ542000409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd6a60be669429d63a9f155f366c699527d9f8727e806cd07899eb8722ac131. 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/NLZ542000410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660147fbedd9f818a7fe4848abb2074ebf68bacad1377cd2e429897f9aecaf9e. 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/NLZ542201009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb4a0e99814a6c5268fce990ce9c1393710a512049ad9da885eaf837f543dac. 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/QZAKB2290399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9540c96788b8fc5201e26774215be1b2fb26fd6e4875e52a6cd3b5426d336018. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL1DT2400293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bce09ebae02d3ab1fef8d84c0ffeb712c704514312840bad9c02726a5542e6. 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/QZDA72161352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e1e2e3b69e41179930d964a7945e9a88e4711214a2eaa4ef5bcee1886e8e16. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/NLZ542200076.
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