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 0xda890691e60afcf24a8920314d640a29595e1997e5d80ba280f73c857543c35d. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be8c8f5a-0b65-4b3b-8d32-5e9408a58672.json and https://artists.proofprofile.net/proofs/artist/be8c8f5a-0b65-4b3b-8d32-5e9408a58672.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 0xd803d71f9cca94bd693dcc1dcf2ee9ac9fbce300eb26f9e89f1cf83e79343d0d. 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/FR9W11630523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20682da2178c3494b615b6befaa8fb9b1cf47c99d773be902ac6def46c4fddd6. 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/FR9W11630525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe46e7a9ddd9b5d01f11e0093dce736edb82c6fc9b7e5e7da356a04dab3c010. 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/FR9W12254482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d2e5d3cb1b35806c397dcc9472393ecec7f36307fe89027b40ffb2fe21adac. 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/FR9W11937358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4c8d3d25abba37cb69ea7b2efda847505e87ffe5637e34ad7e878651e6b29a. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:40:07Z), 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/FR9W11937359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c7e1b0c064fd7bebb428d5b43e9807f191881827a16ebeb605c3f815e10195. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/FR9W11937360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7347188b9b7090ff6e376d89ed84683e2cb46ec801a49a1765e67024497ff80f. 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/FR9W11630519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cead614c9d82802b65a9b416b995bfb1c874f45d860e46258ad016368a4c672. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:05Z), 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/FR9W11834114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5c955045a2ce0d0528acad8209dc8dcb6b384a48e9e4083d840780e4bca924. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:12:33Z), 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/FR9W11834115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708498aee1299bbff28ec81f95a0aaef428c460c11cc96e1370b57fa6b54ea04. 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/FR9W11834116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75cf527ae461f8b255cf7fe5748a3110503a916c14c12ebd7fb49876909ee3a. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:52:38Z), 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/FR9W11733214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0317578c64514f9a709c0f4559d554d332603ae6ae7f65cc721be7760806030a. 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/FR9W11733215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bfa77b9348f0e93711225611636a1468c6aa281c4d2b47928683d490b7493d. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FR9W11733216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1caf9202ad0e884d9ccca60dbbf5354346bf2858438287175349e66d338e20. 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/FR9W11733231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccc71efa0dd8ba45392feb9d21e9be3fc74442eeef69f9f0e211f7c2e37a51f. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/FR9W12245511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f84e6d3744afd0a2c705eaf85cbcf65bbc4ae333d3c76f9822d0b8e09e319ab. 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/FR9W12403267.
Les Chiens Pirates - Coutelas, dagues, sabres et crocs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552445bc77dd8026633ee77922348a5aacc5641ea3234ded484fe15a0b6add91. 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/FR9W12433957.
Les Chiens Pirates - Barbechat le terrible
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b7395fe0b9b6b14e84a0e019ad60a98d8546e3b44367d548a382437bc3057e. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/FR9W12433955.
Les Chiens Pirates - C'est les Chiens Pirates mon gars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e49124792b89c96c55e21a57755c7c7c21e77885d6aa274a7df0ab811abcfad. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR9W12433956.
Orso et le secret des étoiles, l'histoire
La chanson du Papigrou (Les Lurons de la forêt)