Chorale de la Maison des Etudiants Catholiques de Lyon
{"copyright_id":"0x54709d5143f7a09d891a6b643c3bee3b111d660e7d1d42e4ce6faa55783a3eef","name":"Chorale de la Maison des Etudiants Catholiques de Lyon","registered_at":"2026-06-15T00:37:21Z","symbol":"NIM0626906","token_address":"0x7173dcaf1758c8342befb519dcf407b82b99ce0e","type":"artist","uuid":"bf2e89fe-ef01-4a65-bbe0-4c74dd88fd41"}
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 0x54709d5143f7a09d891a6b643c3bee3b111d660e7d1d42e4ce6faa55783a3eef. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf2e89fe-ef01-4a65-bbe0-4c74dd88fd41.json and https://artists.proofprofile.net/proofs/artist/bf2e89fe-ef01-4a65-bbe0-4c74dd88fd41.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 0x3e7c7e0f68896d5cc9837a2c54eef43d1ba2c56ba8c3005c3c1b271978473e7f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRV779800010.
Chants notés de l'assemblée (157 chants pour la liturgie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7c7e0f68896d5cc9837a2c54eef43d1ba2c56ba8c3005c3c1b271978473e7f. 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/FRV779800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3036573d80c3dcf94f1ed7ccce93753cda0c4d1b3d3d0f1932184c7d7690b3ed. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRV779800007.
Gloire à Dieu: Messe dite de Lourdes: Gloria (AL 189)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20bcbc80bd95d8185afe8b7cf3e3c4371413b946cc1d7d1aa26346d7a8a939b. 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/FRV779800006.
Le cantique de la Vierge Marie, Z 170: Magnificat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10995f6630acbd4ba4a995289c07b0785152dd5b6db441b7bb8b132276bb8632. 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/FRV779800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b75f6d77b966390ec12b16454f3d7a19b4e70390e0e634b910df46df0feaf3c. 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/FRV779800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd5e73ca52ad38b39fae30baeaee94c146fe474088c6e43be517978a0fc227f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRV779800019.
Magnificat, Vol. 2: Les plus beaux chants à Marie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0975d4cffb34e86a3665e89fe13e9c0ea079d07ef0fdb355fa1050bd37a57efb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRV779800016.
Le cantique de la vierge Marie, Magnificat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10995f6630acbd4ba4a995289c07b0785152dd5b6db441b7bb8b132276bb8632. 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/FRV779800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad776d6d16123a59bd8b9dc96abda2b06d1eb2f1b250e53d3abe9c5262ac172b. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/FRV779800009.
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
Chantons en Église : 33 chants de louange et d'adoration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657c84f4768141bacfe5656fe0486958c18f78c6ab10db3dddbe88ec60eeee46. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FRV779800017.
Chantons en Église : 20 chants pour prier avec Marie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd06d76c68a0b2edd0b6b2edbcf025a1f6c6278e272bf100c5a20fe7797a27a1. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FRV770500021.