Catastrophe or catastrophic comes from the Greek κατά (kata) = down; στροφή (strophē) = turning (). It may refer to the following: A general or specific event Disaster, a devastating event The Asia
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 0x3dad2c90c2421df4ab66102d0e3d8de8bf5b879eab6b7a1ddc63bf9de8507c34. 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/5f5f0d12-7351-4b97-86f5-c4f31b4d2ad8.json and https://artists.proofprofile.net/proofs/artist/5f5f0d12-7351-4b97-86f5-c4f31b4d2ad8.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 0x5a782a67111ac54f21989bee244fb6d85bc65a8a241713a8a000a72e5f472af6. 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/FR90Q2000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c461a44c4384e8da4d8c84a0feb86cfccbc826cb8e882597630fce9a471efc6. 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/FR90Q1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369bc3861a0a4de1cfeedcec819cb574029bfeecdc6b10b334430b09a28041be. 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/FR90Q1800200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de5e761699cdcd6d304d130c424424b0a92edf2c643d2aeb36b76256502c0d. 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/FR90Q1600102.
Premier orage (Extrait de la compilation Le Grand Numéro de CHANEL par Bertrand Burgalat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305130c68b3948573f11c621001f13bc06983fdd969b0c1dcc63854d417d9e55. 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/FR90Q2200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749405f2eadc5fff2a5fbbafc0f607f7da8c431404bb6e69c5afd1c74a9241ce. 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/FR90Q2200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc409cd62a652742fbeee2bfbf1314926d98520afa1e75790ec4130941db5ed7. 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/FR90Q2100401.
Maintenant ou jamais (Aloïs Plays Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c461a44c4384e8da4d8c84a0feb86cfccbc826cb8e882597630fce9a471efc6. 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/FR90Q1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01a2ba608db609abb4174d91a6fc9be677b5dedf139624646e6adacd7bd7091. 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/FR90Q1900003.