The is a German broadcast orchestra of the (WDR, West German Broadcasting) in Cologne. The orchestra gives its concerts in such venues as the Kölner Philharmonie and in the Funkhaus Wallrafplatz. H
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 0x96cf0b94becc6c879497bab55a5fc4c98dbb7acc73d799cf631c45020fee3487. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c4a00d6-bf0b-4ca9-8ccb-d258da8c8c00.json and https://artists.proofprofile.net/proofs/artist/2c4a00d6-bf0b-4ca9-8ccb-d258da8c8c00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bonn (Original Motion Picture Soundtrack)
Mama war der Mann im Haus (COSMO Machiavelli Sessions)
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 0x1c2cfcbb4ccbfd7fe6684b23a0e4f1be6e90852d66610f476c2bd2f808a10ab4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DETM41611300.
Rachel Portman: Tipping Points, Vivaldi/Kerschek: The New Four Seasons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e308745a965163068e06ddf6f2e1605afa18d407af0c2ac260d19e9e3c1309. 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/DEE862302201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c68d87c41a213abc9eb7cd0468ba83eb72e1d477b35a00dcd97b726b27f367. 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/DEE862302202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cb589c10b2da8f344aac343994584c8c48417ef38815bd4e5f9b6153fc5c23. 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/DEE862302203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a6361be92007007417cff7f3ff7301927655e3bf55a4f8b39f65c7e99650bc. 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/DEE862302205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab8cd6483c83da71730936ca01edcb58e7141f02d62a3551d4b670183049b8a. 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/DEE862302206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fe3b18bcfc3d854844fe5be205da9d1572ee5128982544b46dc0366f082901. 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/DEE862302208.
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)
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26201fae7ea4707088a4244f5e2234715ddffd04d07f49eeab7266e6bfae4e24. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEE861903956.
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 0x735ca745c68a845fb0b76cf05ef455101d2ac6eaf7330992f07d6d383e72a51c. 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/DEE862302204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb8fd8c109f5523e611fecdd60291d3ffd5e3a5fa13176b7c31d5fd6870aaca. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEE862302207.
The Little Prince: On My Planet (Arr. for Violin and Orchestra by James Welland)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896f73b728d7adfb63aa1f80fab053e75c7d0e271dd07cb2ac38211703d0f568. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEE862302225.
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.
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.