L'Impératrice (; "The Empress") is a French pop and nu-disco band from Paris, formed in 2012. They are signed to French independent record label microqlima.https://microqlima.cool/en/artistes/limpera
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 0xfa97bcb8b5e3f249ae9e6194da66c088893d2d5d9ce044593e4ed28c96f564e2. 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/d73ffeaf-c853-4143-974e-3c43ca6059da.json and https://artists.proofprofile.net/proofs/artist/d73ffeaf-c853-4143-974e-3c43ca6059da.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 0x94e0b7168a2d95f9bc1e3de7dc5b31ebc228688228d9459f9256b4dfde9f08bd. 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/FR9W11310316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092e72070d5e5cfbd8a43cbf92a3650d9660de988f6326660e511c2f8b125c72. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W11627267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b373c3183bf25125c6f6f0ac8bdb1d522f2beba1e16ad40f0e9f9247049281f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR0NT2100450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b4175483a4df84b23acd935c8b90d43d75a6de3ea5602152e174487c30c62a. 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/FR9W12323780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e6060f2a6a731d9fc7dfbd74eb23e787a30f28c676eccbd116d99c41189709. 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/FRU701700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b373c3183bf25125c6f6f0ac8bdb1d522f2beba1e16ad40f0e9f9247049281f. 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/FR0NT2100450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb233e2ef936088fd27ecddf3b4b73a2986f5209ffea4e844bfaec26af48faed3. 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/FR9W12234476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f68ef7d80fd492807cf0f16e06e99d5a559761e75b0c46d6b8f252c6e1ef54a. 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/FR9W11718163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59a446e3e9d4147c8bd200355ebcbf253ee2ab8a347586af6f24c8d7fe6a1a8. 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/FR9W11718164.
Séquences - Pete Herbert & Dicky Trisco Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bf0116a0e1de4e47da5e3a8b3b052915125236100952ae9e5836c6f7a220ef. 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/FR9W11718165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509a380a4982dde3f523a3fb386e3682f3203e402922d967ac477a52969a7382. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W11718166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42995070a91619fa8d1a27cc1b14564c1dfa8cf573b1dfdcbdf3df38828ded88. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DED621900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a096c702cfb0c0c55738346c794c91f8c05ed6b3f39d5d82e74b87c0a0ac87. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRU702100229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b029993952a99994be46fe43439c637bf319eb5493c6cf905187324b08b3322. 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/FR9W12410362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca964c02cfcac336cfe4aee3bd3205e15ef57d38be668f5eb79f1134ec08939. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W12410358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2882cc5dcc7d97430815e6d817e34556cc65d8619c5d433d67efed3876c30b66. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W12410359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec95cd18e28e115b9367f38f77c6da28fac9f42f6cf6b205b09ebefc4fbfdf0. 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/FR9W12406263.
Children of the Night - L'impératrice Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728a3c5abc1024d255dc6f5c730b5e75423eb282613a820528bd7aa657f322c0. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/FRPIN1900330.
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 0xf2572f5466993eaa9a4e14c774aca70e7677d9d44cdc61357ba39ce096113b18. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBMJG1509537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9afe4034bc56a17e82cfbdab9bd0e11d2563e31c1bf69d08c33b7fe58e8b97e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FRS711600090.