Jan Peeters may refer to: Jan Peeters (politician) (born 1963), Flemish politician Jan Peeters I (1624–1677), Flemish Baroque painter
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 0x56f1d23ad8b6558d764d560fe16aa6f2686010cbf76808fdea27f835174f9260. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e46eea5e-83dc-4389-8790-2b4e3a0990ad.json and https://artists.proofprofile.net/proofs/artist/e46eea5e-83dc-4389-8790-2b4e3a0990ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
12 Horn Duos, K. 487/496a: No. 10, Andante
Mozart: Divertimenti & Serenades, Vol. 3 (Complete Mozart Edition)
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 0xfbabdb3871daa9dacba1b7ea8edb793c3076db46fc081afd43a1abb6209f4583. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NLA507301013.
12 Horn Duos, K. 487/496a: No. 1, Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28791fde043f074c7547c350d04f35836055ed3b53d3d90118614287b5b46319. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLA507301167.
12 Horn Duos, K. 487/496a: No. 3, Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90b49ed2eac82d89bc445b9b5e915361491471546126981a4be91ce9011ea72. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/NLA507301026.
12 Horn Duos, K. 487/496a: No. 8, Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05f78d833dc1cbf67dabe4fb0b7f0a3c2e8eb87bde87ed55f0e962ddb27f76a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NLA507301020.
Don Giovanni, ossia Il dissoluto punito, K.527 - Arr. for 8 wind instruments by Johann G. Triebensee (1746-1813) - Act 1: "Notte e giorno faticar"
Members of the Netherlands Wind Ensemble
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2377c660471c6eb14278b1b2059988af2a9fe6f747e773da1b29224d76691e6. 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/NLA507300090.
Don Giovanni, ossia Il dissoluto punito, K.527 - Arr. for 8 wind instruments by Johann G. Triebensee (1746-1813) - Act 1: "Madamina, il catalogo è questo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9974ce2bd3c55a77c5e75074deb5360f6647b4fc9ec782f7faaaf925e305a9. 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/NLA507300091.
Don Giovanni, ossia Il dissoluto punito, K.527 - Arr. for 8 wind instruments by Johann G. Triebensee (1746-1813) - Act 1: "Fin ch'han dal vino"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a01bca424b1f5cf0a7fa13d2a23c85635bfb09b6f39053f76166d65a318d473. 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/NLA507300092.
"20th Century Recordings" - Mozart & Haydn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28791fde043f074c7547c350d04f35836055ed3b53d3d90118614287b5b46319. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/NLA507301167.