Líneas Aéreas del Estado (LADE, ) is an airline based in Comodoro Rivadavia, Argentina. It is owned by the government of Argentina and operated by the Argentine Air Force. It provides domestic schedul
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 0xe3796ee6fcfb8da04930c342515795d2382250a9159ebbf5ab353ce24cf63594. 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/c890380e-eeab-4950-993e-04ed6299be55.json and https://artists.proofprofile.net/proofs/artist/c890380e-eeab-4950-993e-04ed6299be55.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 0xb684b5fc41c432cead2f3be5917b1bf14af78ffc01ed3961ccaea264568da661. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB52304518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57142cbaeeda938354cccae804f978107b298a1bb6ac8c450f0285d6668813bf. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZFYX2483066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77047b47f082b59a672b932b6772fc834769ad9bd4ee36831afd778fcd62fdb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFYX2483068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc72df91b2c08a33eb0f683ef007451ad6507c7ef8a3dd24a7d5bb794b79a696. 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/QZZ7U2431310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfed2ce0fad93fcbf1d0e0bafdf2c0c7a691cc4bca8351de2528434058a4640b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:02:58Z), 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/QZZ7U2431311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36ab50f6570e4634bb8941b32f7609a7cb663a0765f6ec86e4a7fc04b18ac24. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZZ7U2431312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde17e030f00e2d1ab4087473d0d092de4f80b6dfb589dd0724f80e5f684e4425. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7U2431313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bbbbe6580e2edc76571c7bfa8a45059a32ca657197473e51748914462ac25e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:37:52Z), 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/QZZ7U2431314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded84a483ae4aebf492e493eb5e6c520adde8a88d49c663fbae29165137933b1. 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/QZZ7U2431315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07fb8cb0f40550b4587d78ce90b23397079c183cae2f3488975bd39589b22cd. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:15:49Z), 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/QZZ7U2431309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3d5962aff8fa9d1ecea8df49fb53e4b485224046699ba29b28af40ade4594d. 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/QZFZ32507446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78ce582221dfdf037c2c645ac45967faabec90f4064fcdc3de14a139cb4a405. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZFZ62550004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdf91f00edf418e193cf7a2a5e8866318b8c4f87dbeccace4c0e2e8abfb0ef1. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZDA52507735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a27b0a29216743612778267d4c95f3265df89187474378fc26cdead414b12a. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/QZHN62569373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4de04206efea92635e34e7e8cb5d37f7ec81413eadcb446098a481bdf52fce9. 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/QZHN62569370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab78be9c0b1718d498c656997a20fdfec2fdeb8474ef436e795c848b1d94e872. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T16:00:04Z), 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/QZHN62569372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296b1c46c313977d8132a54e36cb2e3cdae67aee2c310396af9755964f849737. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZK6L2506590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f328f1238a34e34363694bfa371fadf8e9aad7a427586fb35a65b58497f6d69. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZK6K2545959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4f1a273c42ec658ac75c7cda22ff3aab19c6da65c30e357c5922b4b7eaf099. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/QZMER2517462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4f1a273c42ec658ac75c7cda22ff3aab19c6da65c30e357c5922b4b7eaf099. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZMER2517462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51884645b94b28909d914107869b81ddcf191ca9c68a91af8ceb931978ca9f67. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZPLS2532771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75a9e83d4090a5a853a3376add27a0a6c68bb7c452f449a43d38c3e7dcb28d1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZPLS2532772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6f098ef9a1f657c882573011bfda3145fa3c612b250743201cc5d759680aa1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZPLS2532775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064496826c20d4389fecbdb548c8c328f5f1640508158ec64990e8a78bde2ea6. 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/QZES92396875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32857810c8c7b4019b5ed1b450034add9a49ca2d0e98058c49e73994dd4c88c. 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/QZES62540161.