1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x2d1937f85332443c68fd0dbecc3f25582d5f655d82ae5de5ab0c998ebaa37c7c. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a54ef6ad-bc9a-4253-8ab9-1df5d631a74a.json and https://artists.proofprofile.net/proofs/artist/a54ef6ad-bc9a-4253-8ab9-1df5d631a74a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nocturne in D-flat major "Un rêve d'amour"
Sonata No. 1 in D minor "Whirlwind": I. Allegro con brio
Sonata No. 1 in D minor "Whirlwind": II. Adagio cantabile
Sonata No. 1 in D minor "Whirlwind": III. Molto allegro
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 → block OTSBitcoinBlock must exist at that height 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 0x7a0a909983a3ebedf474de35c4ec5ad7657b4122931fa630ec7619f1287bd03f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZES92563848.
The Poetry of Silence – Soundtrack (The Monsters Under the Bed)
Variations on a Theme by Beethoven in E-flat Major
Variations on a Theme by Beethoven in E-flat Major: Theme
Variations on a Theme by Beethoven in E-flat Major: Variation I
Variations on a Theme by Beethoven in E-flat Major: Variation II
Variations on a Theme by Beethoven in E-flat Major: Variation III
Variations on a Theme by Beethoven in E-flat Major: Variation IV
Variations on a Theme by Beethoven in E-flat Major: Variation V (Minor)
Variations on a Theme by Beethoven in E-flat Major: Variation VI
Variations on a Theme by Beethoven in E-flat Major: Variation VII
Variations on a Theme by Beethoven in E-flat Major: Variation VIII
Variations on a Theme by Beethoven in E-flat Major: Variation IX (E-flat minor)
Variations on a Theme by Beethoven in E-flat Major: Variation X (Choral)
The Poetry of Silence – Soundtrack (The Autopsy of Longing)