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 0x69ffb8ac877f8ac06a09f1df159b8d736f15ee2fbdbc9b49cb99cda9c766702a. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f55f93a-8ecd-4698-b761-4284056ead2c.json and https://artists.proofprofile.net/proofs/artist/3f55f93a-8ecd-4698-b761-4284056ead2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brass Quintet No. 2 in E-Flat Major, Op. 6: I. Allegro risoluto
Brass Quintet No. 2 in E-Flat Major, Op. 6: II. Thema con variationi
Brass Quintet No. 2 in E-Flat Major, Op. 6: III. Allegro vivace
Die Bewässerung von Mitteleuropa: I. Halliii Hallooo
Die Bewässerung von Mitteleuropa: II. Together? Alone?
Die Bewässerung von Mitteleuropa: III. Hasek lacht!
Die Bewässerung von Mitteleuropa: IV. Kraut-Salat. Statt Stachel-Draht
Die Bewässerung von Mitteleuropa: V. Häusl-Bauer
Die Bewässerung von Mitteleuropa: VI. Schiaba
Die Bewässerung von Mitteleuropa: VII. A-Naa-Nas Ba-Naa-Nas
Die Bewässerung von Mitteleuropa: VIII. Nachzügler
Kinderzirkus, Op. 79b: I. Kleiner Zirkusmarsch
Kinderzirkus, Op. 79b: II. Die Seiltänzerin
Kinderzirkus, Op. 79b: VII. Clownerie III
Kinderzirkus, Op. 79b: VIII. Der Zauberer
Kinderzirkus, Op. 79b: IX. Grosses Finale
Brass Quintet No. 1 in B-Flat Minor, Op. 5: I. Moderato
Brass Quintet No. 1 in B-Flat Minor, Op. 5: II. Adagio - Allegro vivace - Adagio
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 0x112f3c814817c2acaa22371c4e73daff822d09abef9c1a96dc4f798a83cbacd5. 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/CH0041500440.
Brass Quintet No. 1 in B-Flat Minor, Op. 5: III. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f2e7a40a0608697198040702a95264e9ea19563edd618ce17ad8a74cf474e1. 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/CH0041500450.
Steyrische Tanze, Op. 165 (arr. M. Bruckner for brass quintet)
Brass Quintet No. 1, Op. 73: I. Allegro vivace
Brass Quintet No. 1, Op. 73: II. Chaconne
Brass Quintet No. 1, Op. 73: III. Con brio
L'homme au marteau dans la poche: I. A bientot quatre-vingt-dix-neuf
L'homme au marteau dans la poche: II. Un Cadeau pour Godard
L'homme au marteau dans la poche: III. Optimissimo
L'homme au marteau dans la poche: IV. Monsieur et Madame Pinter
L'homme au marteau dans la poche: V. Rennweg-Promenade et Painter Pinter
L'homme au marteau dans la poche: VI. Les Oiseaux extraordinaires dans les bureaux
L'homme au marteau dans la poche: VII. L'homme au marteau dans la poche