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 0x5c1870396ca68348f89e2231448108e6288388984c5e768c37b8ea1aa1a11b7c. 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/360e3947-8e7f-4088-b8f4-4498eb1cbc34.json and https://artists.proofprofile.net/proofs/artist/360e3947-8e7f-4088-b8f4-4498eb1cbc34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Lasser Play Orchestra Interpreta a Roberto Carlos (Instrumental)
The Lasser Play Orchestra And The Latin Magic Guitars Vol 2 (Instrumental)
Brasil Con La Magia Del Arpa De Venezuela
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 0xc99a9a604e4f81ed4cae79ec8b9e3047113d43bb25921b37ffd6e9764b0ac067. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:45:28Z), 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/QMBZ91624829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddd236c4d6cb5cec62d023ddc66e5669acedd74237909f462f87f3b3c098a1e. 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/QMBZ91624830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a2ff7ccdbc053b45acb4bd95a86478f8348bc48143f441de2ac71bd9430cff. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:10:47Z), 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/QMBZ91624831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f0fdde425a99aecbfd5d0e8663ec3a3675cef9d99d1811f304d33b48884c96. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QMBZ91624834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbedc235270f0fc08e0a56e560b1bcb262edcf80c41c093ba30b33f3a7ea81d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:03:40Z), 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/QMBZ91624835.
Mi Querido Viejo, Mi Viejo, Mi Amigo - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915660f333a9373a043e360352c8c130e44f19f5c53e7841717dc3827ac09fb7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMBZ91624838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7b4f8dd0b31cb7bd4238fab16fc8e7b59338f917456f9d8a2e4afd624aa6d5. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:02:51Z), 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/QMBZ91646314.
The Lasser Play Orchestra Interpreta a Roberto Carlos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99a9a604e4f81ed4cae79ec8b9e3047113d43bb25921b37ffd6e9764b0ac067. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:37:23Z), 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/QMBZ91624829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddd236c4d6cb5cec62d023ddc66e5669acedd74237909f462f87f3b3c098a1e. 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/QMBZ91624830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a2ff7ccdbc053b45acb4bd95a86478f8348bc48143f441de2ac71bd9430cff. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:35:34Z), 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/QMBZ91624831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511d9a0c58f5413c7a1d84fd439e8f9c7bfb8cf5ded743f38a7b416ad062de3b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMBZ91624832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f0fdde425a99aecbfd5d0e8663ec3a3675cef9d99d1811f304d33b48884c96. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QMBZ91624834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88df28c5d026a1309a14ae4d85265b140a95cd5b682b63205262f488884935fc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QMBZ91624836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9e2e1991132a7b1a01de3c86ba6aab19cf949afc82eddec8c7057c9cb65312. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMBZ91624837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915660f333a9373a043e360352c8c130e44f19f5c53e7841717dc3827ac09fb7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMBZ91624838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288284649a173be913ad9cff1c8a358bf82050b3290585903a773e6137ff44b5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMBZ91624839.
The Lasser Play Orchestra Interpreta, Vol. 2
The Lasser Play Orchestra Interpreta, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1aba9d6fb05edb407cd646fc670d33302610bbd8194fe25d36631fd24ac4c66. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:22:16Z), 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/QMBZ91646297.
Brasil Con la Magia del Arpa de Venezuela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed89fadaf7262c5ef9b3e4cc5d096579b1e7908c893d835cfa93f197db1c685. 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/QMBZ91626164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c182cbf92434f81b846c41fb38c8e8923a809b4eb9854cbb76d8be13c585aa. 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/QMBZ91626169.
The Lasser Play Orchestra and The Latin Magic Guitars, Vol, 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4b9927063dfa640f690763e8d8d6e2a530dc6d61b7073133aab9f9c7b1d8c7. 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/QMBZ91625348.