Orquesta Sinfónica Juvenil de Xalapa Veracruz
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 0xb3009b02234b7439298215c98a4c8cc56330fc4ffb08776f89ef404306baf07a. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a358cd7c-1c5f-4bbc-a0a8-23e6aa494e54.json and https://artists.proofprofile.net/proofs/artist/a358cd7c-1c5f-4bbc-a0a8-23e6aa494e54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alberto Cortez Sinfónico (En Vivo Desde el Auditorio Nacional)
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 0x2db497cad983d138d391ad98454a063754f9aa22716cfc79971789140cd431f8. 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/MXD781901823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6ec5ac5ded65f93b0e2dc3697dbc7cb586ffb84d44452b9724fe12dc69de77. 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/MXD781901824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2344f0aada695f11b24b99c5e968fc14c5bc7082f7ef434997f204959dd2d9c. 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/MXD781901827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8e98c7cc2e9492dba97ea0cb3a0b947b91de3862861558e7b37d6f9ec90e39. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MXD781901833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6681b9ff255ec1ecb8dbee22239b59a7ba39742d73558850e4f33d3c926668. 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/MXD781901836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fd1367bb4e475b0ed423be53273a8e0a64484d085036b03215a6180b0504f3. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/MXD781901829.
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 0x1824a202db1f93885dbe396215b408c80bad95e19182112db53ea37dc444495f. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/MXD781901821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4ec1ab0ea57a831cac085a58b9d9c67f319e2a3c15337de1ec490905033e3e. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/MXD781901822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc109be28501edc6d59a646fdaca53e271b6c1272f94c0b6ed9072a96b90e465c. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/MXD781901825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0282e1796cf564a12b9cd5ea22ecea87211529325cc7205987d85da1f3c9e56. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/MXD781901826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5242212bec74af121f1ab4a5c13766f33e2b72147edf80fe6029fd12ca35d5. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/MXD781901828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23f71528cfde5e2de56015085ec9d730dfa88f3da36a38f5fb1936356444591. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/MXD781901830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf324b5d4223f511e9be7fc3c69f02b22df34f7267a221b888529055b8ab283d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/MXD781901831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcacda5dd0590d120dcdb332c7684ce4da4ba90920d11b62257bda7d7bdd5e0. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/MXD781901832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5d60255d1577f6d491124c7b60599561929cc6f1e068b0f41fc86166a2ebcd. 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/MXD781901835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448988c31cc06b4aec853c6bb463502def6f4f53223311cb5aa22382fcff3fa3. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/MXD781901834.