Martin Circus was a French band formed in the late 1960s, whose musical style developed over time from progressive rock through pop to disco and new wave music in the 1970s and 1980s. Career The band
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 0xa3a23f5bdc2452a17c2efc7b350a1587fe39a1920173312bdb799d7be8d13455. 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/0f83cc84-2842-414b-9499-4d5637ea9c17.json and https://artists.proofprofile.net/proofs/artist/0f83cc84-2842-414b-9499-4d5637ea9c17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Révolution Française (Bande originale de la comédie musicale - 2024 Remastered Edition)
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 0x8459882663c65a61e995d6bd006993406331913c5d7b5e5aaa4c0c408a093cd0. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:43:31Z), 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/FRX087390015.
Les états généraux (5 Mai 1789) - 2024 Remastered Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa885220cdf8a963fc235e0d17866eac8a94106d6aa19629ac6e1063d1420419c. 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/FRX087390080.
Charles Gauthier (Mai 1789) - 2024 Remastered Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca37a6f1889319d3facd4d8ed227b58a16279625f1a3d951bec7f6389775987. 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/FRX087390020.
A Versailles (14 Juillet 1789) - 2024 Remastered Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a348f477e2ad5e7dfea64f971b55a4b53fa724aff55a5cdfe56bc48464a12a0. 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/FRX087390021.
Français, français (14 Juillet, suite...) - 2024 Remastered Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bd9c8305cae359494a4376f1f1217ea0361a27af2c354f41e41b853f7cac6e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRX087390022.
A bas tous les privilèges (nuit du 4 août 1789) - 2024 Remastered Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e67b9a2a109df8a5cf857045dff932efa533c8e3a4bdeaeb8cbd0bc63d53836. 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/FRX087390024.
Quatre saisons pour un amour - 2024 Remastered Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe497e4abc92cc5fcb492025f65ef336408f4213d8dd3f6397a43c483815bcca. 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/FRX087390027.
Le procès de Louis XVI (10 décembre 1792 - 21 janvier 1793) - 2024 Remastered Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a56810c0cf8080c6a6131182e509bbd6f61cf64a2f865976c6d3e415f90a622. 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/FRX087390081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bb057cb54d5e94bb054cb960f3533eb4bc68ee1a751409b6fb78ad096cdc47. 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/FRZ197100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1acc07d8863179287229302f35e320cce89f2625486d2180e5e0300c8adaef. 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/FRZ197500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f0f110f358d2bf7d875cabfea6d8cb62ddb1c7fbb5c34e44eeba80e5d8c07b. 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/FRZ197700150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72eca1f0a373559ae5d7f499c1a67804ba5284d590ad53f7ccec7bd68abdeef5. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:03:39Z), 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/FRZ197900210.
Les Plus Grands Succès de Gérard Blanc et Martin Circus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c144fb1b8c9bd54381dc0db3ff8e1a7d6d35d8ea88240c1c490f2eb2472abfa. 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/FRM568800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e4c42d0943e5fc3b57b26f2347aba4030a78a554e11be1458151d1c107c8b9. 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/FRM568800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cec22ef69e65bf229bce78d933dee35a125353d09224a403674e31e757ab2a. 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/FRM560300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1acc07d8863179287229302f35e320cce89f2625486d2180e5e0300c8adaef. 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/FRZ197500050.
Comment te dire adieu - It Hurts to Say Goodbye
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfc64885d83994ef728bb332e76e9ddc2e102a317329415fcaa5255650fd666. 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/FR65X1600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627abe7db77af4c954c5fd3ecfe65423b00f48c2d715cc910f6d6ee586824a6d. 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/FRZ196700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bb057cb54d5e94bb054cb960f3533eb4bc68ee1a751409b6fb78ad096cdc47. 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/FRZ197100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d9be4946975b588fbe2d04b601ebfbe8aba60edd0d46fb69d927973b88a78b. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FRZ418210000.
Disco Circus - Hardrock Striker 'Acid Circus' Punkin' Out Disco Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db57603a27ce6f5b145af6db1be4b1794ac53d0ae16d144ad6a5607c4928f78. 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/FR6V80906547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af661794e5598c85c38cd63495adbccedb7f8bbb0f2c5303607c4216a05da52. 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/FR2X41976110.