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 0x1cb0b2079a82c372547fa1b33ef27622c5952e031a9129a4bf5b3edd90615ad4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/469b7645-9de7-48ee-b44e-060cb25a11ef.json and https://artists.proofprofile.net/proofs/artist/469b7645-9de7-48ee-b44e-060cb25a11ef.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 0x9a399f69844db768c7ed671ced20e07c0765ec7ee8416a3b3f7ca583dec23919. 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/QM6DC2095212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ffbc8d8a7295b7c288f6947876cf40e339030241557ddb83128807df83a372. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QM6DC2095218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165467cb80694d29afab5cdeabd2753209443d04a6bd929d300c04080a2ce7ce. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:21:07Z), 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/QM6DC2095216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7243ebad1bf846b70ab3ee7fcd7ac6298c50f645fead6c839f424bb61294045. 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/USZBG1202635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fcc45e929df31bd195e625ecd92e7a49c67270533358f7e01dfbd895a56625. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USZBG1202636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7703b8db8d0834e969bdf8a2b72d79c6b6f6d2cb6b78201ae7939196a17eec1c. 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/QZGWX2039666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea620c4e6820ee3e994d8437fc81ef23d524083ea57f3c214573a078418bb47. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZGWX2039667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc45adeded392f9007e5cfc77779ae57ef9adc4297d0741f3c671db9b347194. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:28Z), 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/QZGWX2039671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc293d205c0af2f921b917f81e8c3d2b9b3be5b2a227cb7691642b7b2d77e022b. 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/QM6DC2095207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4118ed83e9e2e5b00db99ec3fa2d82ebc0e99ca835eef4d9af54c4d5f9fd86. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:40:04Z), 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/QZGWX2039674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bc05c9cc3ae4c49ccaaf7a0742e3ad3cac4ad94c4a3fa4168dfa99039b0a95. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAGU2324556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38590edf0b6c192ea65066626c82771082c69fc7c35057bcd5605cac55bac1e8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:01:32Z), 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/QMBZ91729637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa7d5b0909909223c2053ce231bc682f9c6d1f74fe8cfa16c96f9880999f9bd. 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/QMBZ91729648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a99836b256d13684e01cee1faddfb5058bca1fb0b6840716267e7eea76f665. 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/QMBZ91729651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2319d1d102fdacb4c71b2c564d60212d7764c6697899058d8cce2bc1f9de920. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/MXF440403088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6e4a6c458de56f789c43993fce9c2742939b1edb59c6fbbff1f26f13b50968. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USZBG1202648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a1e852aa5bececdf22f327f27b8f951beee8bab9743b70a25e25818bcdce7c. 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/USZBG1202649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77f8225a27f48107439a59e892c7152befcd8acec21490d9d6fb98442d2898a. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:39:14Z), 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/USZBG1202651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bd9e77275517831f168a1896c130530fde1fa40297b8d6dffeac5f95c3edb2. 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/USZBG1202660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d881d3d79eedf98fa0aaf681c1e3c3af78dc8d2179ac39bc9094b1e40853a4a. 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/USZBG1202663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668c9447d4213199e3b814550d3349f4f6f75a5555d36852742b11ca30229619. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:20:26Z), 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/USZBG1202671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df22ac9f9447417e8504a0a551a732a77a7053df805272a1e7e3d74e62f287a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:58:38Z), 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/USZBG1202672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4043b74f043d18bec058dce117692092d64072f9c0f4fdcac4f8426580dd4fc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZGWX2050749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9361f9799569f01b92d88a2ba91f8f84c3755c261bf41fe2041d2cf79dd33b84. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:57:03Z), 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/QZGWX2050751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5a856ee369dc9616ac2821f3612fb9be4279bbae685f3cb6ca08a1e55db72d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:47:58Z), 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/QZGWX2050752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb2605fd7c0edd1a0e55e402b5770669dd4144dc8315630b03f4bf9fa0a4425. 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/QZGWX2050754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09fd56732f6507f193bbc64d3799a6d64b3c6a57c2202bfc1aaeba3ad8bb90e. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZGWX2050755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cfc53cc5826e2a5e6b718b5c3d001409f66ebbe1411197de567a6f3922f302. 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/TCAGM2262660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce71e8d79fe1fcce3fb56a8854d3fe9769be25d55cab8168e0677fbba11bd76. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAGM2262668.
Una Llamada Más/Toma Mi Corazón - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1b1771162f7487a81ce97a1b18e5f950eae9cd8d5ac5a82fe218588d315503. 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/TCAGM2262675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e3bcc59c1ffd41c706c7c2a60e3b1bb078eb7349a992d24a41cabde0c7c10a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAIE2413667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5a9a41c57501b54e6b228630a44aa38267dc408fe6ea0ba44d4a4ed1dd36c2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZDQH1903627.