Ferran () is a commune in the Aude department in southern France. Population See also Communes of the Aude department References Category:Communes of Aude Category:Aude communes articles needing t
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273f34b9695551a0f2faa7c87e02b8d1a64a7a5b8e2381afa3cc4459ace9b6ea. 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/7aee63a9-b857-43dc-a5d2-d4f24bd5346c.json and https://artists.proofprofile.net/proofs/artist/7aee63a9-b857-43dc-a5d2-d4f24bd5346c.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5d74d7e62f7a9f25c5d98e0f7e43e1dd2fff77f36ae67695e509ddac91e8a5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUD42448077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0ca0e1fcddd0c24477e424ac0addd5a9abc58172eb6df5259128bc84f0d2ca. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEUD42558552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd349b0e34f1ed8164ea193fa698cdc882815ed350c5ed877aad7b3b8c9699aa4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEUD42555919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e590600b0a7cf7ab43a18fb545e7b95522f3d69e468e84836c08c9278cf3f3c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUDHU2520140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d3a8d66f39372610872fccc3473aac8aa9240d3300d8f278320cc7403ca8d4. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/HUDHU2520133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b6c5e38a6128f1741a17adba9247e34d84812f4abee21e2cbfa7b7db45d951. 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/HUDHU2520073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b4f6ab844c030f8ca92df95d110da1c8408f06cc8679d87d974c470ed2279f. 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/HUDHU2520078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157e270d1cae67c78c4ab360acc51298697794eb1c899faf071684934be0c849. 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/HUDHU2520072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30408a1e1ef9aafee553771f6de0972aa7a08641b3e6e978b85180bc20c9df35. 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/HUDHU2520053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a8da0da26251cac173e3ee212142bb74d4a0fbdb58e09e74f4654126a17efa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUDHU2519988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad66430e890843e746d10cfb48557900147f5419bd86aefb66d304ce8065a19. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUDHU2519921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dec85b8da3c70ae51e84cb2348607774e348546bfb2c0266fff81a3b0f27fa. 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/HUDHU2519891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aad6fa51d0b550943a034909670204bba8170cd57b4577b6eb32a2235cefe7a. 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/DEUD42550004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8259d67729e556dc50e2f826e1445ca83ad4ee13c02b220a9da00d54714ff6c2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEUD42549438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0f2809a3350b07540b4d0f39743294bb6c0e047b6dad64916106de6a8a1457. 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/DEUD42548650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6617691742ecc5351bd470a8d615f8e8f6c8c118899a1c1fac2bdac1b213113. 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/DEUD42447216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e18e9a44c4367bdbb02a346770db033f3bcbdaa792aa7dc3ac74119ad4a00f. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:54:06Z), 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/QZTLA2472539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c32d970630a54dcab3b1ce7dce5b02c7331d06b0dbabba4ed602341be37261. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFYX2271944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7161cb768009dd2820a3fdc76ac6528dbc73130890440b9a51ae615393f79ffe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6H2089061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309e1bebffaa3c83c7d74974f55329de843dbcee89835c8b791b609f1bc23e44. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUDHU2520717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bf68fd8859b820bb2e1a40696b7d3c4112eb546b55640ad19a6817fb8f1da2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUDHU2520517.