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 0xa97baae80d23a636b900c7f04f5b437a26e4d5f8fc9931c013b285181ffc3b46. 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/36611b91-b2a6-43b6-a204-d061072b7807.json and https://artists.proofprofile.net/proofs/artist/36611b91-b2a6-43b6-a204-d061072b7807.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 0x7a0367c2d059c775046ac7572c23e5e8a26a5eea4ce66992df50f52c11c10f54. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/RUAGT2409187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59ddacfdf9a8960810c665f89679604eb2859ff59d6f7fab20b290328a585da. 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/RUAGT2411628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987ff07e7dae55e92be062b95131e7f94d38883f3a39822a53199c7c225a2a28. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/RUAGT2423593.
Montagem Calma Respira 1.0 (vocal remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a19d790456c0e1add4dea05dfd7d1bf93b403579ca8d7e80a8ef643c4cda18. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/RUA1D2520668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077a35f54aae9f776152198e6075a7de9869b1bbd18900e8ccfd9b1872b1eb70. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/RUA1D2524728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8854f7763bc762c236a03c61ccb91e719b8bab5a92382eff2baad33610fb17ff. 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/RUA1D2534327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3715df42393c0f26ca3b8a90030822a61fb6fd23716f8f8874dd923bfce02e15. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/RUA1D2540256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcb19dab7fbe2a3eb8d063a1b6d1970a30e7eec6ad22cf2d3e43d5fd1c1c6a8. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/RUA1D2540259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2623a9ad3fa5d9583428b1cb432bbe56b507e8a83f2bb9cbae2ac65b2dd7b6. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), 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/RUAGT2435814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277baad4d9721b34a68d94e484f0a9ddf1b6cb8c84f013c4a4451036d252840a. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/RUA1D2549672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9837946dd2614fafe69dd4a8afdb7565d988d297a4e57de8a0946e2fc711dbf0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/RUA1D2549676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c534f65bc4dcce34aeb0904e5ab744ddaa9b66afbe60f6e711142b4a01b330. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/RUA1D2558947.
MONTAGEM PINGARO HIPNOSIS 1.0 (Vocal Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b014984e2f7d10fafd0f862596c4f106e2a3e17d1989da290204015d0fb8ae. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/RUA1D2582674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234bd0a242cd554c4e4828f8b7a129ed34bdac00ea8e427c2942d6b9a2a64354. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUA1D2581789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9fa3ee3d7f6b1a53b1cddda43f12ce91dd2a134410dbeab6ae632c6d1c9b30. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/RUA1D2581791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8a7277eff3a9bbfe48dc5e59e01096a1181f587c9e1a8495fcd7cf7c06c953. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/RUA1D2596635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7304a68a8b22467feb4bc92ca9ee5b59671499ae40ea316cc9732c29b9d33852. 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/RUA1D2558952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fa5c90da3653c23e50bf117977d4a420d4ba40d548c00549a7e99ae5339f71. 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/FRX452520184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4fab059e2bf28ce03b0eee20f7c538072221c77a4089d682a1c55a7a3ba8d0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FRX452520185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ec3f58fe72483e7d18a10e21282cb4d9d28ab74b21a9645e09b49099a89472. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FRX452520186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b04dac48efea9a7e72789b16186e7c8b0aa117b8eb987e05afbc5cf7ab3e51. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/RUA1D2595370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e2bdf20f9ab468f72f99f5fab6d0d8363b3d39407c2bbd393e5ad3314d6f22. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/RUAGT2505681.
MONTAGEM PINGARO HIPNOSIS 2.0 (Vocal Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c52fd63fabd37e3e2479776fdf2c05af83f2fedbe071a1e638089d2da61086. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/RUAGT2536556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843e307d991a0b5c354b08d97d5b2a9e41e3bacf998133ee56ac18725e4fed10. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/RUAGT2557244.