Lothar Koch may refer to: Lothar Koch (musician) Lothar Koch (politician)
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef5d82c3f8670c131595b5e53ec950133865d38c51604832723ca78f4efc08e. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e160c63-8e2a-43f3-ad9a-24fc49a69784.json and https://artists.proofprofile.net/proofs/artist/1e160c63-8e2a-43f3-ad9a-24fc49a69784.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brandenburg Concerto No. 2 in F Major, BWV 1047: I. [Allegro] - Recorded 1964
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eec4f70664ba8f6c6125a54ed6c3b411817216fb2d29b12dc5f26a67084cb6. 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/DEF056400081.
Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante - Recorded 1964
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd387cd8afcc1a22b67f0383f1a4d77bd4d02a5b6d024e7942bde455013ac9a8d. 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/DEF056400082.
Brandenburg Concerto No. 2 in F Major, BWV 1047: I. [Allegro]
Bach, J.S.: Brandenburg Concertos Nos.1-3; Overture No.3
Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai - Recorded 1964
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb79dd51df9a5923227a2b985e49f4b9d855abbc48d7be55f76a90e0262bf30a. 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/DEF056400083.
Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
"Allegro" - Berlin Philharmoniker plays Bach, Beethoven & Mozart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb79dd51df9a5923227a2b985e49f4b9d855abbc48d7be55f76a90e0262bf30a. 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/DEF056400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd387cd8afcc1a22b67f0383f1a4d77bd4d02a5b6d024e7942bde455013ac9a8d. 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/DEF056400082.