Guillaume Connesson (One can hear Connesson pronouncing his name in this interview.) is a French composer born in 1970 in Boulogne-Billancourt. Biography Connesson studied the piano, music theory,
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 0x140808eee8438d940951e4a7d60e7d7b2ff0749bfe3ee3d021f8b756f0d239f2. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f6868db-a4c3-40b5-9863-ed335833cbf8.json and https://artists.proofprofile.net/proofs/artist/3f6868db-a4c3-40b5-9863-ed335833cbf8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Connesson: Cosmic Trilogy & The Shining One
Cosmic Trilogy, Part III, Supernova: I. Quelques cercles. Sensuel
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 0x35430b61c17e14ddda5b4669c7983fea4b30c39cec72435d1d10805f926d7a96. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBLWD1000505.
Connesson, G.: Cosmic Trilogy / The Shining One
Guillaume Connesson - Pour sortir au jour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ec7a9b6a0b216a7be1412de5b9b05c194eb1669777f9c48f64ef707f178c4f. 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/FRUM71600767.
Techno-Parade - Pour flûte, clarinette et piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55b36863e42eef2afeda0719d4b0cab40ee06866f87867475ca14590a899881. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FR07X0000620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e688df8b1d80c027d24a8bd8ca046ccf2583a9882672b1aa8c9823580f81cfe. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR07X0000660.
Le rire de Saraï: Bénédiction de l'alliance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a83508c6788fdcaeac120f873a04298097fd5cf9b32e2f1fe5f3c5bd2058680. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FR07X0000640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b60a6d33d6cdc42951b46f6c183c816e627df1a312b677433aea9bf89b871c4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR07X0000500.
Toccata-Nocturne - Pour flûte et violoncelle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d7d7af01e580ef8c649abe6745807957752e3fb0434e652b2236f7d9c85e73. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR07X0000610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bff2222ded49b33a9e86a495c4b395696bbdc9193a676a5515872ccda6dc548. 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/FR9W11110235.
Connesson: Les horizons perdus - Concerto for violin and orchestra: IV. Shangri-La 2
Connesson: A kind of Trane - Concerto for saxophone and orchestra: III. Coltrane on the dancefloor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3935a34fe5e4f66d897742d5fe00e616ea493b9b039fe3f3e1e1358b9e02a6. 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/BEGT41800001.
A kind of Trane - Concerto for saxophone and orchestra: I. There is none other
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3931c52e93ac7acca146bc37c191328305a36f5c2a39d46c42fe5a4a76ac9c98. 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/BEGT41800004.
A kind of Trane - Concerto for saxophone and orchestra: II. Ballade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf579573386b8ebe242efdfdc9caafdb29ad6a0deb31bae779ef1694632b3d1f. 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/BEGT41800005.
A kind of Trane - Concerto for saxophone and orchestra: III. Coltrane on the dancefloor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedeab225a4717de4accd1b2b5b506d2733badf629aa647d072ee29034996aec7. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/BEGT41800006.
Les horizons perdus - Concerto for violin and orchestra: I. Premier voyage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1a6ae646e057b2dad9fadfc5fa2d1214634dd6427093613947f07263eb8d42. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BEGT41800007.
Les horizons perdus - Concerto for violin and orchestra: II. Shangri-La 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaefea303da44fd30a967167d9b3c824c5f5305e0bedfad71249e2d7c24a1190. 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/BEGT41800008.
Les horizons perdus - Concerto for violin and orchestra: III. Deuxième voyage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dbca27818052aaa689d29c308b4392c08151f259e0134251aaab605122bc22. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/BEGT41800009.
Sextuor pour hautbois, clarinette en si bémol, violon, alto, contrebasse et piano: I. Dynamique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb42c741201058742e3a4b9d938be92b7de7d2d7f7560b67d7082080975500d4. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FR9W11118276.