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 0x437c9d305b94fa01a460960866d8eebc33148c7e3f1cf304f2a248dd56305eee. 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/8a55c288-8464-47c8-9621-77e29cb5bec0.json and https://artists.proofprofile.net/proofs/artist/8a55c288-8464-47c8-9621-77e29cb5bec0.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 0x552b3e0ea363fb3f21fde7415d6c0e68c3dfd3c401a518d4d77ccca9bdee3830. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QM4TW1756189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff55d7567f866301a2b83beb5557393981167c19ca8485ae39680890cf282e2. 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/QM3DF2219677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4effe3a895128e6c9d031f87e8284a1d08a406ffe8f355434845b3562787db2. 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/QM3DF2219678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f262bd13dba8ae5202763736ff8bbd5d10d45d61a99cf24f3a79b00b7b13d60. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:30:04Z), 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/QM3DF2219684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3320903879c0a31a0633a8a484ac7c906d5d0690bced2d63e239a31c88940162. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:08:44Z), 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/QM3DF2219687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bd068f3535b26e0b69f74768213d75d64744c3c8bf22ce74005ed4e185b58a. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:41:56Z), 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/QM3DF2219694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b79db32ca18977bef2503e8a1bc6f1ce89b9f71fbdc93b41da0f0cd49081776. 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/QM3DF2219696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f2574688ce33ccc6d6cfb01979a89a990771d1d32d4eff4836acf29f24eed9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/COS019800482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2c163ba4d9fa3704ccd17809911677ee361f94a7d4f31c63ee2b3899680038. 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/COSO11900305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23eb3de04d3d174d2522cfe5d57123d026cc3c3f2731cfb78a14a09b15de3f0f. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/COSO11900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef532a2958bc04c86d3498d071488c5afb6adc06eb13fb32b519102ceb9e39a. 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/COSO11900308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a3929740ae9bff4597b9af1c3f962ee6ee703ca59da1d6d3444410a9bb8971. 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/COS010000397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4aa9494531682bdc07891c532c159b67941e511bd67622fee004ad076aea17. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:08:44Z), 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/COS010000400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eab2d03f97a1e5d2415406281010596c1b10d4e37ed830aedbb388e68ed5a99. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/COS010100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14232ba5fb295cc5757c29d1b41b2c589f658b82599613599d10aac575d7d78. 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/COS010000399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa282b7a08df0f8a64dc38a73ae2a4e83395b0ab5899450558e09a82730d16b2. 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/FR96X1664447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d48d987fbc079b95897c838e83ac6e44ef00bb72e42772e1eaa2dfc4081a0ea. 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/FR96X1664454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abbecddf6299faab6f7b3e03d96bf1e5e7244850ddc92150471b89e315fa0a1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR96X1664455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d13a055d20856cc33da8e4d3aaef48cecce42a57c8d1eae71b29d994ce38d2b. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/COS019800477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee17b274a3c2c090405d090cabb41a84311b1e1d4c6f024354c3b20c30105a2a. 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/COS010000396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ea52ea4943ee25450fbfeaf189752824c640f14470ef0c4886f1fead605ea1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/COS010000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464e1f9a6c1f7ab67acd7858b56e277d41a7594a687adcde0a7859217dba3e21. 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/COS010000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f2574688ce33ccc6d6cfb01979a89a990771d1d32d4eff4836acf29f24eed9. 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/COS019800482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8c1c38547d9fecfbf3c97c53426258f93bd32c186b046a85dd46267ff12cb8. 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/COS010400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5980e995de6d6f4bb6f500499968c23f3d669b054791f9131626ad886d1d3feb. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/COF019701091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6843526ab7e7b45a1c7d89d843a0d71b67e4c8f1955dcff2fa40a14fc1e1fbb7. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:57:25Z), 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/COF019701101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcea54bf645b68740ec88e4b59fff25a4b16dae1c7ae0cfb1b774b5b194c19a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/COF019701097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a168fc8ef98fea5008f6d64336a7cc96317f4c56a27d0dc92815dc6fd8ebb7. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QMDA61376541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4316d23ff9954afccc9dda5328f576692ad6bfb1df896d160283f69c6abca89e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:14:36Z), 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/QMDA61376543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653343004433d9b5d6d5726fe6de855ab582c5948e54ccc78e08a55d517dc35c. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMDA61376546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e72ccb0afe3eb4ce0598cf47a9b36d1d4a8633dd676937dc604052f865c12d5. 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/QMDA61376548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2904badb886e6c6a93a0119a4dca115e5c6c8e21a950f9973633fb3c1c481e4d. 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/QMDA61376549.
Perfume de Mujer Romántica: Éxitos Románticos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3192671c40b86f6e10b1417a11749ff8e89e142b265b02a67fdcf679440e19a0. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/COF019900908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afd32fe222b746da3f840ab9a2583e6d570d08c02ddf957be34d6b27b6dd75d. 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/USV291444491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a06a6c2e5020dbe9b96d6ef83a1555dc08de830cf59dcad1a1c3125b970d8e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:55:09Z), 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/USV291444493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a0c3ae2fb0b6ebf74d65ca758c4a7a3cfdb4357cd4d5b00e80c55ec73cafcc. 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/USV291444494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db8ff5d77f0a2ce2e8d3e21b5b534a237129dce6aa7b059eeab92b9773d3b6f. 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/USV291444495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c7d455217068a56ae9ec70a635bc8a07197173714a7b4bc681178ceb340054. 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/USV291444496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa290b6268bf53ae91fd53c904dde39081b37f66c8b295a48be0e806c00f7b8. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/COF019701089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a46e37d8e6630b62d3000c1748123d5c68ce12e06d74a8f2dbbeaf6e8d25f5. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:07:26Z), 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/COF019701090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb64a8fb442ff815fe0c770342294ccff175447f381e40027da090ea556b9db. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:53:31Z), 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/COF019701095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55494bbc13f3a07fe9e20926fbc2574bf13a1c791533c9140654b73866d2265. 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/QM6N21785022.