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 0xd0668deee53d4ba2847d3acccf4ef9d3f68caec9f3ad4d4e83a30b23407a226d. 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/af6a8e30-4e49-42aa-b4f6-2b655adb1799.json and https://artists.proofprofile.net/proofs/artist/af6a8e30-4e49-42aa-b4f6-2b655adb1799.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 0x0956a3cf0ad4d954771305671029957465d563f76684f8eefdedb5b238f40c33. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:07:58Z), 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/FR26V1612184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3041e10b84a31b656a2f44824ff99087e52d5f0224f0fd683c98e376254e465f. 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/FR9W11930425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53442fcc77c5b79b26dee6ff1a13039ec040cb8690bf3228176f12ca93d54499. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FR9W11930424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc61894f045b7a9fe74acfb69ca624c5efbd2dfb4653addb7cd2076423efad1. 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/FR9W12023895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe789f971834dee42f478b7684d4d02b396d00b8ea63b982a5752c53c1b257320. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR9W12107136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9079a711c7a83fcbeb8e1c797406a3e1198e30d2dcbee1fb47764ceb6ea248. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/FR9W11930429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c10fdcd88be58fdcee4b1a1a557dd6f412465ca80c3b182656c341897e03ebf. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FR9W11930426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3041e10b84a31b656a2f44824ff99087e52d5f0224f0fd683c98e376254e465f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR9W11930425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cca9372ba7e4b7a2317c0732f75bf15df17017a1ff3cb649cd6a57ed35f1cfd. 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/FR9W12110626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a7bbf036612597614c32147d6b66e798d62888ac2ed079166410c2fdf6bc8a. 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/FR9W12110625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba0f9b7373c88c546246f5da9236061bad8b812d785c66e98dc5d4e3ca9217c. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:45:23Z), 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/FR9W12110696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973b73ed02236681dd14d38ed72a9cd402dafc63bfa4dee84093ca51d96a6d66. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR9W11930430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7c855db81b0cc21cee0b65a4f9849e49068f8b3fb55754c3324ef11322cffe. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FR9W12110624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05161079ab2b7836d5ce3ddec6588ce56a66dabacaec1411809f1753e8974876. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:21:25Z), 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/FR9W12100331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f8ecbd6f7917a5ec7333134ef583451dc59c7a9031595d09e87f3319e2b03f. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:04:49Z), 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/FR9W12201882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43988951d9253f0c5cb5e6181152b80417489725b58abbe28edf5e95546721b3. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FR9W12212720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2b67b0a156ca61939dd5de03e485f121781e64a737de4e834f8205e442485a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:03Z), 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/FR9W12225390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de1341c8ed99897c3ead843844f0007d548813e10ea7a5bd519b172109f5bfc. 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/FR9W12228254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e293bb1faaddb9284648a7fcc71cc206085950417e44ecff528206d2d684d3. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TCAGP2253627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee43d7c5e719a57ab08477eaaaeca5daf1ad3d0a14f60f696c17ea5b523981d2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAGS2361589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53309f18fdcb1e85b1ccc4181a26497ac42c5a9c3b4f8be9a9e3b89a26aef6a. 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/TCAGT2353865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea579cc2bf7b0fdb4eb486c769ee2410ba4147d673455547f412994883ae2501. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCAGT2353892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b1c3d670c443156c88d4f286116e1524063cbe9dcd6c496e79d2493995d432. 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/TCAGX2314827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d06525dbc11aea66dfa11f29c43a73953509d35e9062b2b85e8089c65f4919. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCAHE2347124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc289cd5e6666ef559ae2b54985ee12f9f40f85dcdde16b6ff6f0225d83a61851. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/TCAHL2398715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203082a39f46b616ea2e26b618826a4c6c2f9f9de96b1b9809f84bbea8a319dc. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCAHT2301795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad98df2eb5bad272c278b6c323d24ee1f37032ca26859b88d9f6044fe823e93b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAHT2472217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4050b85db0ee9472294dabd503e442a95ae66cc0ea49e9b65341495e8cff3356. 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/TCAIA2474763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58eeff90aaa14763c92a2daaa0193e0d1626355fadcfb27ab73b10ed8c1d65a5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZWFG2410132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68531b93959c15b50a2d00230388abc114622946f3838a7699a500bd393a2ffb. 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/TCAIX2418306.
Pour que tu m'aimes encore (Version Rock)
Pour que tu m'aimes encore - Version Rock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9def964e0208fe912ffe66c57a7f00cc78410004d21cfd2d0fc02c174b794b. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZZ792407900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18877c4c2f1384cf02a31d5b74c4e0c72b39612ee34ecb7db07409dfdf2f3c6a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:02:52Z), 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/TCAGP2223585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51153cff528e25198521d6152440fc1a20aaffc733aabece7ce35673a44e8ca4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR9W12139445.
Fais dodo, Colas mon p'tit frère - Version Rock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a71d67d930f3745bb1f82f8599b7187d34499af40a4dade4f7831bf7a9fd22. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:50:15Z), 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/QZK6K2503082.
Briller / Golden (KPop Demon Hunters) [Version Rock]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86753997ed47b38a6fb7125828bb4119869f962e71352209e63a1127f3ba223f. 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/QT6E72564971.