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 0xe68873af58f24ff8a0af93529e58f0be276cd97e16afd62c5d19d7aaf5e49585. 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/bc4375aa-d6fb-4106-a29c-5810289acd38.json and https://artists.proofprofile.net/proofs/artist/bc4375aa-d6fb-4106-a29c-5810289acd38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nueva Línea - Éxitos (Remasterizado 2020)
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 0xdeae75a60ee71cb2bf623ed4d69674710df0d8605b35e4dbaf86ae8d5ebe9add. 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/ESA011301335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c55f12f3007879eac3493e9db382cf5f6559fcff165f7e830145ea76931574. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ESA011510377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5b72d3f96b1ed9c769b95b5c423fd199e256f1231d0c49b251f487f32b50ac. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:17:27Z), 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/ESA011510381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb67722f3833c5c2aaf1092577508dc77d570e19100acde4ed4800fbe91c2ae1. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/ESA011510382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42f7865fb2b08366ee46148283cc2dd4959ee14bf9c11b02f33a6608d08fb7a. 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/ESA011966242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b0b062001419ffd58667ad1d2117f44c5ab3ae97002435ab91c863de8b7d3f. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:44:27Z), 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/QZPJ32323694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e204185a0d6a89edbd6364152e9569a26f1fbf07b6858de927f1383200c500. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:50:09Z), 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/QZPJ32357595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae78dd3eceaeaaa3d4e35d324f95e039670eca7f746a7d649e198d8bf7aa7ea2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZPJ32363562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e167687f632b3f6e2e9f47c991b27a609fe3dec476f7f6cbcf894b8b5473e1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:10:49Z), 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/QZPJ32371054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba041fa16fe46481b12454f6879a02595221881b5febbce47d1b97122db3658f. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZPJ32452515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb84d0a512465f42f7deb9c07667aa7936f02485bcb7dab26eb45a4058d52631. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZPJ32482844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bce25108bbdd72db65d3408179ee5723968f80744f183b1453b69e2dec8c50b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZPJ32515035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66724d5b70d6bfa5510b4e09ba6c584b5b76e9cb16d09d4fe21032a6607842aa. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZPJ32517057.