Azet is a commune in the Hautes-Pyrénées department in the Occitanie region of south-western France. Geography Azet is located some 55 km south by south-east of Tarbes and 20 km west of Bagnères-de-
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 0xdca1bd0ab88143a14ea27daf5e22bb8110791b2c43eb9e414c7c0c7f2c2b4ece. 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/4b8c817b-fece-4b71-8f41-ec9568af9cb3.json and https://artists.proofprofile.net/proofs/artist/4b8c817b-fece-4b71-8f41-ec9568af9cb3.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 0x8abea2b2f86ac115d680092ff4791b7193f5ade0adb2269c3d967aa56aeb3a18. 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/DEA622301279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d59175be620fa79a1a5039b3aa55530b8dd60dc155720979cf41ad58fd868a. 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/DELJ81607240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d16a3435b73ba3826d85469288d082ec3ed46bf1ec5a53311f57ca65de5ae39. 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/DEQ021911676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425dc624a813b47e26e9c62dc41dccde74449c7445d3c54450d28c6c35d6d746. 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/DEUM72310590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02cdfeeab441655154ecdc0bfc538c79b00fcd575a93a212334e94a7e2d5d79. 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/DEQ022271407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36eb526f2a43418839fa9cc3f2b8172e0a572aafd78056d1c58e666610390c6. 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/DEQ022008448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00f58cca5d011e9ff24ce31751db6fcd36d90e5b760e5692ae4358f032e7e9f. 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/DEQ022001195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec920b005786f0259630a4679114820f274de27bac89c0eba62f30dc7a042cd. 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/DEQ022001199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b239d977131fa4f4f9e08270ca48ff28d3a19fea6b58fdea58459dfa82e4b8. 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/DEQ021902578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57379f56f3aa3d6fe78938f5df787d32b8173d24bbfb5418aa19835a8e55c596. 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/DEQ021808669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29beb0db672bc0e16cce7aa5e05d88a439d1c1bb9a11704946d8c884fc14fbd. 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/DEQ121749331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5996ebe3ec6655c102c17ba75ca8aa611b86b18cbc0fbb49fce279f44ad8a54b. 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/DEQ121751398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d16a3435b73ba3826d85469288d082ec3ed46bf1ec5a53311f57ca65de5ae39. 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/DEQ021911676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa6c6fc2b1fa61d99ed23792eaa085d9cb75662298ec82221e6d6d8d39e121a. 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/DEA622201581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709580345c8f633c26211754511c496cf9cbfc29f9be6e638acf6fa6ab36b4c5. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/FR9KQ2000760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425dc624a813b47e26e9c62dc41dccde74449c7445d3c54450d28c6c35d6d746. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEUM72310590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc071cfc2e5c9335dda34337058b7f244f82b8bf119fe6a0477f38c07bd8080. 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/DETM41610324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdd241539996f27cbdfe95915e53fb8dbbab2795d9b0a10ee9610ce542622d1. 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/DEA622401064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c80803d48836287fe4d24941b1ef2ca7ab8aa4871f9a3e053877cff108abea. 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/DEA622401065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfa2799402794616756e66756949f71173a54fbc2d4565b448324cc57a9948e. 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/DEA622401058.