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 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 0x5506c4f758059c11a62c03c80b4103d0b8e87a3d08d46966283c078cb0ccf2ac. 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/44a59d42-5f47-480b-8f28-d86a1099bf26.json and https://artists.proofprofile.net/proofs/artist/44a59d42-5f47-480b-8f28-d86a1099bf26.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 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 0xc9496e4014a3ee0fb7bead7a0fec81aa23eab8c3335c2f3219b7dec848b587ff. 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/PEBQ91502726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ef986b83abb493af062b6f18ddf595808f6928719c188238acc021ff1f88f3. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/PEBQ91502727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7801efb57b4ca72d73945351428105a7d90745c4cd123dc42515adb169fa99. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/PEBQ91502728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bac0fb95ebfa05d4c42bf230e712d94f6a66f8df606023ec22ba2cc5cfae9c. 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/PEBQ91502729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c1d0bd439d645e710765aa2329830f4f8272c156d793aaa58e1747a4b80708. 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/PEBQ91502730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7347d87f22b8fd9f283ff6e26dd6b363b923bdfbc502e318848e9708d77754a9. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/PEBQ91502731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd129d5926611fa901cd56c34b5c9f102b58d15aee96a3fd4d88c2d3a88d17c93. 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/PEBQ91502732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ba557affde6d376607a32e5b09902f2f796cd87c70a47c2fe4676173c55a60. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/PEBQ91502733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421a5bcaeab9948e25caf622126b714005c474c90e39d53f42c7744e40f3b7d8. 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/PEBQ91502734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644665f02b66839691fba527acfc81a37234ceb20fd688b3857c5206a3631777. 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/PEBQ91502988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa489ffd4baebf09c0d033e8da3f8282528d140cabbe16cfee8c586dc76be6b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/PEBQ91502989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef9803ecfe493b279d9b4423a1fff14a87bc14d1e3e89e6358b968355b7f77d. 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/PEBQ91502990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb71a67da5f915f657db4980ff14185377359d9ea18c292eb66fd25ce11a70f. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/PEBQ91502991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69a878f9df815362284d566521d408966330a3ec0c462a448936093b6ff4c92. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/PEBQ91502992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8c9c43ce295ca9003e062de2176049117a5cae732009048a6da25a58ba9c79. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/PEBQ91502993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d38a2a41e0c51ae0b8eb39dcc2d9ae35771114d9a09ea7278108293cf384a84. 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/PEBQ91502994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6021918694dad6f4de0f98a6e4ee84ce73d847b3b76a14c075d861e19e13bd8b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/PEBQ91502995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b767937c37fdea4d79f4fffa25099c030b09f0a52f8158f3ee97f9b0114988. 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/PEBQ91502996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99caee328903642a96332c96d8e0f61f2db79b8b2f6f3f1543da6ae43fd9a2ed. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/PEBQ91502997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c4cecde5353469039c1ee87a5f1603ce7a22000d372fa35242ae84b798a275. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/PEBQ91502998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eefac500edfa0aa2c71fa8d63dd7031ed69169a18c692d2444d8c59e844f7f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/PEBQ91502999.
Los Mortero (En Vivo En Lima Vive Rock 2014)
Los Mortero En Vivo En Lima Vive Rock 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d3a85d41b7846eae7f0f106ea8d9a96f3a7b6265fd2bb3422b451fd8d9dd36. 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/PEBQ91606152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932070f7a72fd15dbf5cdea6e69022885d05b190e628a626b51d071bacbf9bea. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/PEBQ91606153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2f67afed072efc124a20901ab5dd85fed0b057246d739cfa0006c2c1f31f31. 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/PEBQ91606154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70144c4752bbfd3e8cc801d8d7bebd803a09f6ccd34dc31a0980a630fbdf17e3. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/PEBQ91606155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1b9d8e5a6d171ee7e5f438287d3bb31bba2f48285c038f797c5ff2fbfd476f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAHH2343444.
Los Mortero (En Vivo Gran Teatro Nacional Del Perú)
Andar (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720b56560389474417e259b41e9c27f462085014181266eda869b913475216ff. 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/TCAJJ2562966.
Los Gritos (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5dc63e31da743767c0bdcc055448e1b0d9f85b908df16009e188fb7dd4711e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCAJJ2563032.
El Final (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc945a0a2eec0298b2f3ffdfa88870ffeede66f55f73f03e14ca148a43507a9eb. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/TCAJJ2563072.
Mary (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8377772ccdc257b72b8aa87a5e8dd388ff4fdddecc746a43ecc7e5d1b8c828d3. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/TCAJJ2563161.
La Tormenta (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573a0c8c028142fbe900f5321054997f3fb066e2ffa445111f190d452010a8cc. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCAJJ2563275.
Compañeros (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f21937b5a419d44122828e95f2ed33bc21296bc211bb1e17604a53b1e4f4e4c. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/TCAJJ2563347.
Buscas Mi Furia (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fca541fecae655ed451f1318da4e447acbd5364f71264d2d6c3600c80f9fb4c. 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/TCAJJ2563379.
Adicto (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7192b95350a71e05abb5f44adc068f27967a828d2b660055ff2035df71687708. 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/TCAJJ2563412.
Vichamos (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c530e202e51c75988523292203d9004ba0f16eed0fd52c94919040827b3ebf. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/TCAJJ2563434.
Caminos De Polvo (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e5beaed966ee6dbf9998e66c1ea7cddf9b7fd99c931912c319fc29679ec5a4. 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/TCAJJ2563485.
Carne Fresca (En Vivo Gran Teatro Nacional Del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccce1555ba73fea103c2fb2975c94e85f055089d419db290fb9bcd8a92d5a815. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCAJJ2563524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482bed5a3d9dbf8c066f23d3ad472bff498d41830b35c2b5d1d2f751297166dd. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTVM2489711.