Boston Early Music Festival Vocal Ensemble
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 0x68e1fa5d72656977c90d26901e0374e489e4cadfe6d885cd2bcc94c0550a0e23. 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/b9bd030f-c9f9-41e7-ae73-2fac73168814.json and https://artists.proofprofile.net/proofs/artist/b9bd030f-c9f9-41e7-ae73-2fac73168814.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Charpentier: Les plaisirs de Versailles, H. 480 & Les arts florissants, H. 487
Lalande: Les fontaines de Versailles, S. 133 & Concert d'Esculape, S. 134
Les fontaines de Versailles, S. 133: Ouverture
Boston Early Music Festival Chamber Ensemble
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 0x49436446122ff6a81cc8c50d28e362ebcd2b7bb3bf19aa6d517aff0a0506663e. 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/DEB201909701.
Les fontaines de Versailles, S. 133, Scene 3: Chaconne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b0889cb0fff2ad41e9520a704f5d46908607844a0cc439a1f6de230320c916. 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/DEB201909708.
Charpentier: Actéon, Orphée descendant aux enfers & La pierre philosophale
Actéon, H. 481: Ah! Qu'on évite de langueurs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf792e999addeb68374f38ff91a6542f5499f8d380266626f9c8c1d31ae764c8d. 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/DEB200961307.
Actéon, H. 481: Vos vceux sont exaucés, et par le doux murmure
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad972c46c7f7e7582fd0417329909ec0c19b7dca4662d3f9db5dd5163f0ba1f8. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEB200961304.
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
Actéon, H. 481: Jamais troupe de chasseurs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28976c6221725c44fcb30da198daa6b01f21f6b0b3f877ca6ad1bc88f5a6dad6. 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/DEB200961313.
St Matthew Passion: No. 1, Symphonia und Chor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a77da3f8d393b7aaed38129344e4ad5f24d957f4b31d5ab37bb872b98ee5304. 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/DEB201720401.
St Matthew Passion, Das letzte Abendmahl: No. 3, O Welt, ich muß dich lassen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9760ed0b02a971225f83fff3ec542f5af9bf2411fd461d87a21322dff8745e5. 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/DEB201720403.
St Matthew Passion, Das letzte Abendmahl: No. 5, Gott sei gelobet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eddf46e030fc0b681f845a287fe30fd190d6be5f591724ba8f5f956bab4265c. 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/DEB201720405.
St Matthew Passion, Der Olberg: No. 8, Und nahm zu sich Petrum - Symphonia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400ec9676a3f7cfd767ad27a5ad9db00f297f1f8064182698b6bff1ac0fa4cb2. 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/DEB201720408.
St Matthew Passion, Jesus vor Pilatus: No. 17, Führ uns, Herr, in Versuchung nicht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108c54cd0a409b32c47a88b8fd327f4467a6d19c2ecea92a47a3d18ae17590b8. 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/DEB201720417.
St Matthew Passion, Die Kreuzigung: No. 25, Herr, meinen Geist befehl ich dir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d743f78a1b61ae9f955da8e64bb4fb5fb34ab704fccbf991229baf09b895527. 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/DEB201720425.
St Matthew Passion, Das letzte Abendmahl: No. 4, Wahrlich, ich sage euch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23bec482cc6c1fc3b99db3c71da82d5d60787241c95ac2b9b9c7908b8856f1c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEB201720404.
St Matthew Passion, Die Verleugnung durch Petrus: No. 13, Petrus aber saß draußen im Palast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbe461ee1bde0a58cd31085707721d90be9587b049b8eb3c1e70476c557af85. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEB201720413.
St Matthew Passion, Jesus vor Pilatus: No. 20, Da aber Pilatus sahe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecca14d9e50e83e2e8effcf9cd11296f26fbf41ee875aa1699ffb6954efe7ea1. 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/DEB201720420.
Lully: Idylle sur la paix, LWV 68 - Charpentier, M.-A: La fête de rueil, H. 485
Idylle sur la paix, LWV 68: Chaconne pour Madame la Princesse de Conti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b996d806f5b169ee1a4f27ae960cbcac18e962deb03c6f600c44f2d7db460a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEB202467812.