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 0xe85cafb110112c954d7db380baff8f2b40a474132a9d3ca3f5b62cd0b160373f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56da4aab-02ca-4bc0-a9b8-ea129d49e4d0.json and https://artists.proofprofile.net/proofs/artist/56da4aab-02ca-4bc0-a9b8-ea129d49e4d0.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 0x58c4e3b882ebee45c9d6a6dceb0891e0aae67ad66c062d1b7f11db51448458ff. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/MXA231500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79748ee667fd3d791b2bd11ef0726c1c0e6754c02a357ca7468685adf633fc89. 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/MXA231500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc331a410fd45bc170dce91dc291f58d82befac54c62e2f25e345aeb0f22918ab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MXA231500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc568557c84d8135470e3001a82b2f1403c40a4c4f65c2b14752034993e423bfc. 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/MXA231500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9269b52dafff8ac0996b84dfd33e9b26a2eda050eeb5eb5fd601d3a3e0e4f21f. 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/MXA231500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a84d241d586f1e61214161fb12be02bb1f25b1e0a48054a51fc0b2f3b28593. 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/MXA231500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737b6edb2f72d3e6e834c2b86561a04772e89308ee8866c407956f2b97278757. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MXA231500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e607e8742675dc1de0dcd148dee6bbcebb8c97f809a9ee647404fd1080e302c. 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/MXA231500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcc3e66fbb202cfc53a6b8af9b444ad28599039886b2108fe9f91a7b8a113e6. 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/MXA231500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7468455d4ffcba10bf1f248aba4e79102df366a05d4e464bc3c85252efe103. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MXA231500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893e15a914308a01e7ebcba28782275b26b054df22a6af7460a5343283aee12b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:26:02Z), 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/MXA231500001.
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 0x06dc4f2cbb8519c08a78a76a332c2a8b6cf2e10c174916d81408350c10cc2ec3. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/MXA231500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2dca3288eadfebaa03a629e29d863c8946993d58cec7fa77b1172ae2f1ee805. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXA231500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a1641bed6d3cd4d16a7ea4145f7903a3865d81360fa332290c588b313f83a5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/MXA231500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56357607c9c96acd4adb7a94d99eb40150c1864fff3d5bdad1b3b7a63c0faabd. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/MXA231500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97275189d04679d3345db7086adc6468c9df0d5c160bf060557325d5ea51cc3. 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/MXA241500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98d9bde86bba3650b3cfa8229eef9ce580756fec96e1d36b98b90c452f355f6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MXA241500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc833b052ca04d4f99683cad100d6be79dbd95c2374c28903b7d0a6941206e7. 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/MXA241500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f3da423bef781df220bd5fc156380a3844e08ac10d3832cb20812652d40573. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MXA241500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87af9ba60df15a876f8c5ece48bb98fd6fc3deb5663bd02b92a38339c47dbc4. 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/MXA241500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d3b9918fc28870c37f7d05c34f3336c46aa648ec5350653d99c5961a10019f. 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/MXA241500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08947a620c8399662d0acc0c4af2d61a1e0556451bc156816b0f4ec5430cde0f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/MXA241500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f6430a98bedb12cfd18cf19a1a8a144e1c7ec285728a1ebc4fa61c84dab142. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/MXA241500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe079ec6de49e21177446d237e7f3535c54bf9fe1ee1721a50ff23ef4e0619314. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/MXA241500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce16defd4228abbbea6623fcc0b826f9896c07bda84c126e3cbab60171d0416. 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/DGA0L2382133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815a7e76ffdd66989fa1bd61287a66653b09fe90e957a509f9eb5a061e239c12. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZW9M2261293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d31c1ba625a488b091e0bd6b68bd95961d6a6d9a4ae1a21f379e2fe67934a9. 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/MXA232200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa341944da877bea13605b400f99b1abc870d388b844838defa6d53986acc3934. 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/MXA232100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578aedf4b7b72f1edc6aaf58f207b8595566519526421b89cfd0d5ecdb6d3a79. 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/MXA232000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db714c0ef903faa3452a9ac2f1db5f8a682803cf66d01c40da68c92c02e2a7f. 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/GBLFP1984424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a0ab7ffb133ac2495cfa7474d6f5af7f6d63f0db9f8ec6da8fba1ed9a3e710. 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/MX1881800314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa358f82a3625bc922288e5a7a46fdfcabaf7000f3366f8a04e56cd82d51eb04c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USDY41934293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336bbf7f9582686ad6f1836ebd75ac2ad784b4ded5b0d2b8fcb03c68e572cd17. 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/MXA231900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccf2d6144e54bba742490641aa8cf4eeed87184bfad16f05c64f3f1babf044a. 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/MXA231800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220ebf752b2a068d7731d68eef564e62146c04a26e2687b5ac23ebbead65a554. 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/MXA231800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa054316425263475a5e484234e666406c4ab2090e58835b7b9fb0e13dd791724. 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/TCADS1850745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695496a968696a86b496c718dc0ea8484657658288c5b9b2f157d5830b4b4795. 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/MXA231700020.
México Se Pinta de Luz (Only for Streaming)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1042d95173ea71f2e5d1cf32e4750eba7f4bfd7ff000804e23d7cb47b002da33. 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/MXF011500594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d18177452bfca192b12e3321e8fd82c1c9db5696399a7689a9ec1185741ebce. 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/MXF011500596.