Musique Municipale de la Ville de Genève
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 0x8c9da600540b83bd8c693bd19fd0f900ed5df2f1fe8d612fc3db1321e76a88ae. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a96d4a8-f32e-4f74-9321-6365db439fca.json and https://artists.proofprofile.net/proofs/artist/6a96d4a8-f32e-4f74-9321-6365db439fca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concert de Gala 2009 (Live at Victoria Hall)
Concert de Gala 2010 (Live at Victoria Hall)
Concert de Gala 2011 (Live at Victoria Hall)
Concert de Gala 2012 (Live at Victoria Hall)
Concert de Gala 2013 - 150e anniversaire (Live at Victoria Hall)
Ivan Le Terrible (Live at Grand Théâtre de Genève)
Lucien et le Kakophoniak (Live at Bâtiment des Forces Motrices)
Concert de Gala 2014 (Live at Victoria Hall)
Concert de Gala 2015 (Live at Victoria Hall)
Concert de Gala 2016 (Live at Victoria Hall)
Concert de Gala 2017 (Live at Victoria Hall)
Concert de Gala 2018 (Live at Victoria Hall)
Concert de Gala 2019 (Live at Victoria Hall)
Concert de Gala 2022 (Live at Victoria Hall)
Concert de Gala 2023 (Live at Victoria Hall)
Concert de Gala 2024 (Live at Victoria Hall)
Concert de Gala 2025 (Live at Victoria Hall)