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 0x57b6461abd8722a3c5531311c8109afb272708ef683026a765092eda78be7012. 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/41872477-fe92-4425-9b03-9b5d4f81e0ca.json and https://artists.proofprofile.net/proofs/artist/41872477-fe92-4425-9b03-9b5d4f81e0ca.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 0xe932cab443e9d8aa1c1e0aa04cf144b1e59a7acec52a9aa462f0a6c675182f29. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USAGX0501706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f460667daffc8a76fc84f5973ade4ee9a66683daa47451cb054f5a97469d45. 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/USAGX0501707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c0afa7823ef6bf4f2507e137e89acd5fad82fad957d38ab999e3725c0d275b. 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/USAGX0501710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d8d6d4cdf210239ed87e42b58ce563d43f798907c0ecde9ecad70f1dbb12b7. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:41:36Z), 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/USAGX0501713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e8415855d1561b700b711c5bf5af2b1a23e48ccc3294721048c5d039255ad8. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:51:00Z), 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/USAGX0505231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3ba5b4aa44c2a44be169ed0e8f5bde473884df73b0483b66b83e76709f30b1. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USAGX0505236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04d32eb31fc486f71c0551d4ba6f9c3b214cdbd838c9fda5518c44bf04ab24e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/USAGX0505238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678949821c8fa719b9b79ca1c26fc40ed6d6be02a168f26096bc74eaad0fab76. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/USAGX0505240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208e324a379d1822c2b3dc28851f47e02d6d4780fe947722ec14c96245734bf5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USAGX0505242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76220bcfe14c32223503b62705d231e7d61976026cb855f6fc7aab2bfe16674. 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/USAGX0507501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac91fa1f0204adadf66e253bbe5b3b6dd1a4d2c473791b4c8bba433dd2da31b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:47:13Z), 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/USAGX0507503.
Regresaré (Una Década de Música Sonidera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db891026e8ae89bcceb2c0845cb797046dc035ece32eeb140e798a55e85520f. 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/QM6DC1716640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e8342ddb393e3c79435a9c93f622e203542b0205fecebb8ce1fe7bd225099e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QM6DC1716647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70118e5475d8e8275775acf728184281f8912c18cae63b4ad605d8128d09387. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:32:00Z), 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/QM6DC1716649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe76a804e106959c6c5589c9c74cfa835663c1358c9f2a485506e9f5dae4e73. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM6DC1716651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7a425985db4fa9b5be5e4ffce6da219af7d9f2c9ed51be4524a1ea86651d68. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QM6DC1713962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20a2f13f1d7c7d366e4fd657b680ce4c9d0d7e68c7640d5da461208aae7c4a7. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QM6DC1713966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe40f7455ce8a33fe60500c427f8ed46be24da157f6cd748d960c0bb9dd8c5bb. 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/QM6DC1713761.
Titanio y Sus Amigos Presenta a Grupo Kien (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27329b8cc167f45b13521c0306411e9d028bc1c8058bd52d16d6eed17aae5c9. 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/USJTQ1311511.