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 0x822d9fb0ab10c9db54222d2d0af5356e6353d7530267d9f66134475d23d97d48. 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/6b42d26d-4fd1-47d4-96b3-b0c273126e16.json and https://artists.proofprofile.net/proofs/artist/6b42d26d-4fd1-47d4-96b3-b0c273126e16.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 0x8ac07d6c2fa07cc0d6cf52fe2e7f4bc3ec12c7bc0007346ba4e54ecd1dc48af5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:34:54Z), 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/FR59R1702307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac07d6c2fa07cc0d6cf52fe2e7f4bc3ec12c7bc0007346ba4e54ecd1dc48af5. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:43:39Z), 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/FR59R1702307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3533ce23796a0d9b15097968fab9830b0b150511cca12258718e39384939441. 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/FR59R1700895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b91dd3b5d5f0144f7d7830b88a8c5807599cc16090600d53eeb030be5e1945. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/QM6N22423107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5aae7e84b6f3d5630a74eabd39e44c0b08957175f65578c27c086645d7f61f. 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/QM6N22423110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa8608619ed436a29ba765a266cac02d53f8cbbc0759096cfd37dabe527f7e0. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T07:56:02Z), 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/FR59R1711315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efcbeaeb51efaa1ea95ebb15e4f7da85ba4d48f0e262663337f39d3ee1ebebc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM6MZ1899272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca3f02b3c6323bca7fdd84ec7e403b212d8300e335680e5a6773c8921088aa6. 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/QM6MZ1899278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd336b853497d4ce696a98281136d07ab302c59dd2ff4bc19787d967b285671fe. 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/QM6MZ1899281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6860e675e4d32bab50185be59cb78e5567e2c2ed79cfbcf97607ab1bfb252872. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:48:59Z), 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/FR59R1701240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f38417c572b67f7e71a4a83a9fd59d1bf890d6ef2a8a899e42e089e45032b9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ESA011309109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ffd67e0604931cc248a1885d0687c3fc7a8cce2da9f0afc005d14e652235f1. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/ESA011309111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6449587a47edcec1a41501c978421c0f2d859f88f5d37012b6883401bff78d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:32:33Z), 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/ESA011413255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e959c03b5b3ed12cfdec408800d0c1c50691f72daaf1bfb5df759f4ebf8940a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ESA011413259.
25 Años de Rumba. Mis Canciones, Disco 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e959c03b5b3ed12cfdec408800d0c1c50691f72daaf1bfb5df759f4ebf8940a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:19:18Z), 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/ESA011413259.
Maria Paleta / Mi Mamá No Quiere / La Matica / Correla, Correla / El Cocuy Que Alumbra - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d168cc31e9ff640fd76ee2e9e375f089bca85a1444ff4a4cc96ce4a576ecee. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:06:43Z), 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/ESA011413260.
TAMBOR URBANO SINFONICO TEATRO JUNIN (EN VIVO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56b570dc163e4029a8f44eaec2c7abb0d3488dc17cede373d473135f31c7947. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GX3Q92097641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c157e9397a8bb8d0ae55121126bcef174091980f3dd525066f79a6adab06a0. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZWDW2494980.