Patrick Lange (; 25 August 1986) is a professional duathlete and triathlete from Germany. He is a three time Ironman World Champion, setting course records in 2017, 2018 and 2024. Lange is also the 20
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 0x1e103b6c50c0a92c9045d25411fa29bed4a0840f4e7641198600e1ab43fcbc6b. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fafacea-47a0-4225-8b26-edfc5605e97b.json and https://artists.proofprofile.net/proofs/artist/6fafacea-47a0-4225-8b26-edfc5605e97b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The New Four Seasons - Spring: II. Shepherd's Wildest Dreams (After Violin Concerto No. 1, Op. 8, RV 269, II. Largo, Arr. by Wolf Kerschek)
Rachel Portman: Tipping Points, Vivaldi/Kerschek: The New Four Seasons
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 0x1d06cdbe960326d74d3feff6b37ba1b2cc5435c52c6195542dd1b857f469c2c0. 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/DEE862302211.
The New Four Seasons - Spring: III. Dances with Nymphs (After Violin Concerto No. 1, Op. 8, RV 269, III. Danza pastorale, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f5848dfa8a98f28261217051b520813a6556182c6f7bcdb82bf96600a12750. 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/DEE862302212.
The New Four Seasons - Summer: I. Heat and Raving (After Violin Concerto No. 2, Op. 8, RV 315, I. Allegro non molto, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe342332dcfb7a6122616c7ff29740f7edd16d6872a64f2016ae7e76abd703cd5. 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/DEE862302214.
The New Four Seasons - Summer: III. Summer Thunderstorms (After Violin Concerto No. 2, Op. 8, RV 315, III. Presto, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3098c8f4ee5b50e738ed28a201d6309f18753a16be8c7b9b03557eef5e76a72e. 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/DEE862302216.
The New Four Seasons - Autumn: I. Harvest Dance and too much Wine (After Violin Concerto No. 3, Op. 8, RV 293, I. Allegro, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019c36b0b99a40e02156f1619ba91c11b28a049dfc01baa7049c0c154b824724. 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/DEE862302218.
The New Four Seasons - Winter: I. Freezing and Shivering (After Violin Concerto No. 4, Op. 8, RV 297, I. Allegro non molto, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12de219da9890cd568d471029a3fc7f7ae30f568d315f31f2ad244b4014d2b4d. 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/DEE862302222.
The New Four Seasons - Winter: III. Slipping and Falling (After Violin Concerto No. 4, Op. 8, RV 297, III. Allegro, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534df2fd30b62a3671e34c95f36d0e8cec83c1471c72205a9da99f31260cc6ba. 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/DEE862302224.
II. Shepherd's Wildest Dreams (After Violin Concerto No. 1, Op. 8, RV 269, II. Largo, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d06cdbe960326d74d3feff6b37ba1b2cc5435c52c6195542dd1b857f469c2c0. 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/DEE862302211.
The New Four Seasons - Spring: I. Ice Melting into Joyful Spring (After Violin Concerto No. 1, Op. 8, RV 269, I. Allegro, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb409ebaf8f5951b1b2ffdff5ab805e47fa77bb4b96b144619b12ccb96b3bfc. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEE862302210.
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
The New Four Seasons - Summer: II. Mosquitos and Flies (After Violin Concerto No. 2, Op. 8, RV 315, II. Adagio e piano - Presto e forte, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa008170472012e6c626d192993eb9b065a81ea2e57d8f04d392827fa046599d6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEE862302215.
The New Four Seasons - Autumn: II. Sweet Sleep (After Violin Concerto No. 3, Op. 8, RV 293, II. Adagio molto, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73388bd3e54cb15d38d958168f2e9131d859ba5749f6e3cbd937f1431e0a61a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEE862302219.
The New Four Seasons - Autumn: III. The Hunt (After Violin Concerto No. 3, Op. 8, RV 293, III. Allegro 'Caccia', Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04996e2afe2a435fb9e10102addaf68c1deee588f8b17b964b1eaa8f9ffaffb6. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEE862302220.
The New Four Seasons - Winter: II. Cozy Fireplace and Rain Outside (After Violin Concerto No. 4, Op. 8, RV 297, II. Largo, Arr. by Wolf Kerschek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c12089f960fc90bb73465524e4ae62b5e6901e57921484788a65a9d8974532. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEE862302223.