Albi (; )However, after the preposition a ~ à, the name becomes as Albi ~ à-z-Albi is a commune in southern France. It is the prefecture of the Tarn department, on the river Tarn, 85 km northeast of
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 0x305e41e1b833216bd6e9445f9da0967748141c51bce27e28cbf476e424972194. 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/bb6eadf6-624e-423e-984e-49c38f62ec3b.json and https://artists.proofprofile.net/proofs/artist/bb6eadf6-624e-423e-984e-49c38f62ec3b.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 0xb34759d1d9c7bbd56c0e2a1067d06e95a769963846f3bf7904e69877e18b8b28. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/DEQ022200367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf96a4edb8ed69321a6468e39fe5f6b119d3d38f1fba1b37db79cb84354da692. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:11:44Z), 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/DEQ022372665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a82b420a386e959c1e186f8b4f9a8934c9e35a2c936f5d88b89eb119267847b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEQ022271417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0f4f8b4ccc5ac7f5fe96c19acf4cb3dbeaf3bc3d8da8632fecf57fe1eb4d0f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEQ022272595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0788bca748b2b1b76fe4420f98de9e4d36b9b6a106c224d3f72749a4d8b0f22. 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/DEA622301327.