Bourgeois & Maurice are a cabaret act based in London, described by Time Out London as 'neo cabaret'. The duo, formed in 2007, consists of Liv Morris and George Heyworth. thumb|Alt cabaret duo Bourge
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 0x82e4a73a2297a1952718632427ccc974010b01a646050bca77a46868e695d8bf. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb8b7bcd-b131-4cf7-b94a-53276ffe03c2.json and https://artists.proofprofile.net/proofs/artist/bb8b7bcd-b131-4cf7-b94a-53276ffe03c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How to Save the World Without Really Trying
Insane Animals (Original Cast Recording)
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 0xdcafc5fad87c736df62306eeb6ab93516cdff7ad0e753712454a2595f8e4df06. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/UKJVH2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc66cf559ef6c1ab1435a1f8e27645e667c3a67df604b091d5f9ce3d3992174d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/UKJVH2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76b78f1d8d77400052d388705cf2e597762265ec93b185799d180d7f7c48357. 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/UKJVH2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b92be79aed9d3479e360a1f65119502d505237fd2662be6939781d05730eedd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKJVH2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf945fd3fef812054d9e4a6f48e60db2e197a33206ad484780721885dd94ca476. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/UKJVH2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc44b5154bc899ab3fa4bef37f4482b8c8fd64ffbfb4b6003deb3bdd6a4b006e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKJVH2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eada30b0cc5d3e31e8465f3ac00b120d5210e2bbb123e9e5066e21074938a0d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKJVH2100014.