The Academy Of Ancient Music Chamber 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 0x4c69e7f0a9bf81eeaccc0697b6c7577b539f23ac975bc6bcc508fa384b80d3ac. 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/59ea75c8-dd76-4144-8f04-738354ee68f8.json and https://artists.proofprofile.net/proofs/artist/59ea75c8-dd76-4144-8f04-738354ee68f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
"Weichet nur, betrübte Schatten" Cantata, BWV 202 - "Wedding Cantata": 1. "Weichet nur, betrübte Schatten"
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 0xd6de9bfb06858a3e370e74c018c083ea36fcb557aede3e23eaa80e22c4248fa5. 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/GBF079644401.
"Weichet nur, betrübte Schatten" Cantata, BWV 202 - "Wedding Cantata": 3. "Phöbus eilt mit schnellen Pferden"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2497cb291283094064f2e22c6813c662383480df8ca8b0eab5d0b6e172559814. 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/GBF079644403.
"Weichet nur, betrübte Schatten" Cantata, BWV 202 - "Wedding Cantata": 7. "Sich üben im Lieben"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa3756bae37f2acd3a2d95cdba84bde746bf0dec812c2f4114f92701c3ff0d4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBF079644407.
"Bist du bei mir" (formerly attrib. J.S.Bach as BWV 508)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf18dfb16b2c14c96834a4cc324939da4692c930f19c0207c5e31eede852167d. 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/GBF079712280.
Haydn Arr. Salomon: Symphonies Nos. 94, 100 & 104
Piano Quintet in A, D.667 - "The Trout": 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8f886435a7d2cf702bb258ae687e5938a2707751d201c882d4a1d7a3b4c8b3. 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/GBF079111542.