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 0xfdbd748516d54e79c2b99b016b6a55cacb76374191c7f85f8d4b3842d3d25732. 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/d5492036-7f63-47a6-a2fd-61493e984cdb.json and https://artists.proofprofile.net/proofs/artist/d5492036-7f63-47a6-a2fd-61493e984cdb.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 0x7b815fb6017c15b7917b12eafaf314b152485e85100762e2c14faae718c19d7f. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:04:27Z), 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/QZGLM2316531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aca14b9bfd9f3b5ab3d3df2d42134c8578b488aa9e766e7b1717d0f0305025. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZNJZ2376976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d46bfc7e167551f4fbd362f426e99681cd2fdb990033b424835d73f29af0f66. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:16:26Z), 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/QZNJZ2376977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62bb4391e7ef1ca709fbacd39cb47f7ba0c9da47f0052ce71cc30fb2e91d622. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:17:33Z), 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/QZNJZ2376978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867726788c32d2387ea9bbc775b00311ebe63e75bd82148254fe98bc17087c6c. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:33:36Z), 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/QZNJZ2376980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08069baecfc56844d2034a50f1becb783d7e94734a0ad523a5b56ca21a54cd4. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZNJZ2376983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9357c1ea156b5ecd3961bd7325f77faa230990d72222cb24f77091a070778523. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNJZ2376985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606d265c31b620e0faed28f2d5591196129124a89204d2197aa8705cde37854a. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:28:31Z), 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/QZNJZ2376986.
Priscila Areba e Adriano Teclas (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12276028c2ffbbef1f778eb6b203275e5732a32bfd02974ed1b586279ff15bb4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZW9K2324154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8948712664dd7a5894bccf8ecca9fbd8b51e2649273386ad6ca48c90186f7697. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZW9K2324155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a2725d4aa21df2baf447b7ac297e947ee7c0834e6ea0d87bc44f6ffd65d158. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZW9K2324156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1235f1a320e2b2f7608426f3ae0660a5d54f6946694e5b03286c4780a4a5c7. 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/QZW9K2324157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52378e5220449e65b1fad83b2e2e00fc90f6a669832582abf962a392b986b88. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:46:43Z), 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/QZW9K2324158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17083955d51b931e67ab9d38bdae4fa1329fd795e1336653c0cca00c3c482a1. 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/QZW9K2324159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1582cad5e4136d6b5303e74cf7c7c0bd5e3342106090ebedc9dde20624aa04. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZW9K2324160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8827ff8225b93d1251b67a298a420c906d78321285e3af9cbef5f158400bcf7a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZW9K2324161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e3a5147f52ffee389dbc9aa9a55af5ee0ef236f5f78bb9f8e08a295be65cba. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZW9K2324162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1cad4a51919d98ae5ab095e5dcc8b558007ba878917c4561c3bdb19ee1df38. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZW9K2324163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9de8b4270a4ca8bb5edef2fdff69e45773263454bd689e1614f87f9a7ab11e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:29:33Z), 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/QZW9K2324164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1511e877b47471696594b6a73b33bfbbdf5e85f78409b13191d9edbc7a958473. 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/QZW9K2324165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06358090bd05749f37c577095a895343e0790b7f9b2c7f6be9c115c8963cfc7. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZW9K2324166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c05d09389885931ff41a6155f97d6a7beac055273c88153d6ed58374829543. 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/QZW9K2324167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf542070d2d521386ffe420ea5fd331671008a6542cf9e022c1036c1ea208e269. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZW9K2324168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44511fc333df17159fdb1b96e01b16de3cc94d5885b805f1514087298d4db709. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZW9K2324169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34e3651ed9fa38d75fd5f9a26c7a667922d87ebf176a933998c1d51cffa0742. 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/QZW9K2324170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991dfd0586ce34bdc2c9fc52bf5e75e0797012fbe5d4880a12ad9bb3788f3b65. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZW9K2324171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30916623ee862efbb061090fe92a2270e21c9685d077d79d905a5954baa95ca. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZW9K2324172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f496ed9c9b4a87de83f8b014998044b30bea7813e63b281288e9db43a02304. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZW9L2361061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de85f10ccd5f39546261fa3b6a36e2aa7f70c8ae67886d3ab31763e6ce2c99a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZW9L2361062.
Agora É Oi Bb (Foi Só Te Esquecer) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01faadaa5398d80f90a5dcbb38d5b6631303fb6e99cb14dced87e7bcceadf00. 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/QZ5AB2476268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67773af0a4dd70431cf628e829c560df6733c4db872ded24eb2537f5895ab58. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZ5AB2476271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6832779f02b9581fb7c3b321f9d739bdb222c89599de4effa03d8ad349ff91ea. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZ5AB2476272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c36f50c26f315e6a4ec91483c72751fd02eddeb43eca187c0cacdc1ecb6242b. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:33:20Z), 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/QZ5AB2476273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43371888fd5118a29f767021c7cde0305a95d545caaa133355bac7eed8aa60c4. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:50:08Z), 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/QZ5AB2476274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8e9acc463c5e4ad811ca203119b4832de45afee35c33657282ae75cca32f2b. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZ5AB2476275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaa6f37308da7f73964bcf3509f59bc33fa50b2d5d906039030c16979b4a9c6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZ5AB2476276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42c9927aa367912bbe8ba1c79f6b84bac32540b98612250a25e7ff9d3bb0c45. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:30:45Z), 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/QZ5AB2476277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1622d679ba6eb885ad5d804179fdb33760a42dd1841dc160e028c31948a4c8e3. 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/QZ5AB2476278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f4f72b3e695c9c0b8f6b9b6b47de970fb08adfb76de73185e594416ab6c3e7. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZ5AB2476279.