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 0xc0bfdd81d8c7ce0ab288f97b3b6244ec410387cdbece091c592fe682ebbfd474. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76385740-94f4-43ab-9b3b-1a4246c034bf.json and https://artists.proofprofile.net/proofs/artist/76385740-94f4-43ab-9b3b-1a4246c034bf.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 0xefb4c95c942b99d2f5045ecdd5e19d00410f18b7bbd32569ea06d5bc3d0933d9. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/BXCND2401270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976bc9fc27602e9f52cea82267e0ee13c877bd9894d1b0e06558902534eb1f24. 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/BXCND2401268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bc427a894031ee0cfb1e351c27b89c1e195e38033b512696e8a3c9cc99e95a. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNJV2512341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9d17d82de4644f1825c0ffc9546b4fca78783e9f03f88deb5e56249795f3ee. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZNJV2512342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2bb0ff5e4d091a3dfd54796bd490eb0df8e9ab4a3ea9a370c3dd225e027914. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZNJV2512343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea807f1ccfa051e421f7a8993f9fc4a18b9f453a557401079b8fe1649fc8fa4. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZNJV2512344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d13dde944c2333d79b35d7e41039a73a26a4458c405fe57a97218784034809. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZNJV2512345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c5a419dfc10cc7065828d106195e0f4bb30f5d33f2cd9bb789e4568dbd6aad. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:32:39Z), 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/QZNJV2512346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf2bccdb4f00e80418fd23e86bde7d9ebe69935490c45164edffcc3682e8f57. 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/QZNJV2512347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5eb8f207ab6876fb9452e1d74f5e089aff32343f9cecd367c9409f58194baf. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZNJV2512348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce82a6d26a36f4df3041899d54f90e4184c3bd6c4fcc51c1b05c53c4c394202b. 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/QZNJV2512349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130811a522d51745e13ede94ebd94034b490e3d2e8826207e61cde1fc27854cc. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZNJV2512350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ac2d41cbe55e0473fdbdf35f5e271aaf6466d792cec9c08eeef703f9cee429. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJV2512351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c489a244a13a87aff8da7e7b793c5d63a4bcd5e20b9d586a965a197df045d8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJV2512352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45aaf3e9bcdf6abc04c92d0a2dbfb57ad6615277c4db399120af9d23f38277ff. 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/QZNJV2583480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb420b943fc115b1e6e6ca0d10eaaefdfcd3aaa7bfb41e6f5f972bd7755dc9484. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNJV2583481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe835a673f10dfbf56bfc43bd5e88783ba81b8fb6c16577a1285267ce44abe3b8. 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/QZNJV2583482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541a439aea06a16e6098d6677b2e5ebae25fb84f9128d0b56f9c5cccd36a72e6. 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/QZNJV2583483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75f706a167b33c39847e4b510f0d9a9d2ac35a913cb0b911f140c801e26eed5. 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/QZNJV2583484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d08b9b82f93962b8eac9dc45b70c932ed9e73729a5ab356a5992e941b81e790. 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/QZNJV2583485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65c0158c35b167b33b5301a299d4e3118477abae35d7cf6495e1c6e19dd61b6. 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/QZNJV2583486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffe1b6d2d6e313f278052fc4ff80e9499b2893088c5be937ee693e26d420385. 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/QZNJV2583487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cff3e9948be2918e96d2e4b3260a82e1eb38952bd9e015e48b4a850166af6d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNJV2583488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fa53c84f1ef2071b183b9b0f639477f670acf999489de8d03cce476d2815e2. 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/QZNJV2583489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf33aeae46dcc0ab49cd58616ccff986d6e663a5a30d04be68d1720abbae709. 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/QZNJV2583490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2588c23ea632e2f290c9976648c08bc60535ff0e6f574c76fcceb0bc34ace3b7. 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/QZNJV2583491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537312abde203d94286f27fb50c324f357cbea1f6de168ce307075a61f2e3e79. 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/QZNJV2583492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d53e34666a5ed4c685770d971dee54d8b8c37e0f593033b7538fed33c236b1. 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/QZNJV2583493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3008eee9d30dcefaaee388001eee85d20c45079a6534f8fa8a492812df279bbd. 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/QZNJV2583494.
Nem Dormindo Consigo Te Esquecer - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6db726ce50be03c8b6b7b38c893eded44a37ae73880928d4f1ad924b6238f35. 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/QZNJV2583495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dddc7bc7392d7b0b8b79504fdfb79dfa381136366270eab4791f5b9991f417. 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/QZNJV2583496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3470dda742215357e7311223c3c162c8fc0404dccc148f2acda8f52bca89cd1. 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/QZNJV2583497.
Dalziza / Vem Me Ajudar / Leidiane - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b14b8c0fa8ef3410cdbeedd75454f2371f88c23c1d2ed9d16f98dbda4779bba. 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/QZNJV2583498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240f932482899f0335b17977fcb4ed8bfb53f8c921523380986c3efa5f9d3d26. 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/QZNJV2583499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883a762db5c7f65cb2a78c54606760aa491434af4aad8d06f8de21278f0370d7. 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/QZNJZ2542027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87302cbe9254f829f21ae215b65482205860437436dea7af90585bcd6fc05396. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:51:25Z), 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/QZNJZ2542028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b337c73108e48573af883596bfb95813f105ebbec841aae636f9f474525ff6. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:19:30Z), 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/QZNJZ2542029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626db4e738c7a61fc827288bf6d6dc2fa886a5ed44c0c98738568e672282845d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZNJZ2542034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2d67883fe68613df4ddb7c04381c17ae1de80fb19d21b9ae860291ce176216. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZYFZ2526447.