Friedemann is a German given name meaning "peace man". Wilhelm Friedemann Bach, German composer and eldest son of Johann Sebastian Bach Friedemann Friese, a German board game designer Friedemann Sc
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 0xa8eeed7ccaa85555286dfefbd678c4eb490faa667200505539be1bb77bafcca8. 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/c95a396d-a3a4-4514-ad28-44784bac0a1a.json and https://artists.proofprofile.net/proofs/artist/c95a396d-a3a4-4514-ad28-44784bac0a1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x31f684f20aa8cf31ce155fe6591e247ddf6fb70c4f760c4d2d3e55167662a256. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USNA18714545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fe0ff6f98ca02595af2c7fbb03d2243034e09e11f188127fdfad89444e948e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USNA18714546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6882e438a3fd04e8c0a547ded96d8a061634fb1367be3e77ae75a905741d836c. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USNA18714547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de4b14dd206e763cbf0f06ca5b39e3ee4d3715b0924440eda38764700c6b9c4. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USNA18714550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62d435244982e4aad38f4f1a2c1cd26a671887c5d433f98cf589346a086454a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USNA18714551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755f3e1cf6bb377bcf623528982e28d87d17ffe9e82673737ad50ddce668f1e9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEA698730010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d42be2e61177ff716a55733b73c603d46e4d3b9fa995adffd0e2066d26026fe. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEA699043010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc8441426f2aff2926135684763e0c446c2382c6ddddcabf95ee2cb92dbeec6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEA699043090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb902fa3da745debf6ae521267ac6f0767eb6b91f6b26829c3ec70022e6a1f6. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USNA19014523.
Beauty And Mystery of Touch - The Millenium Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50075ef93969f599eb1e62c6ee6614630059f6dc5b2b94255ce2b2092ef6a922. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/DEA690781010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb4a0a9c479c3d166b87b200cf91c26921604ea8e397cd171a8e84ad523770a. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/DEA690781040.
Beauty And Mystery Of Touch - The Millenium Collection
Legends Of Light (Überarbeitete Neuauflage mit Bonustrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68dfdc05190400d70148524657f58378dfe21d9d64eb5e15cc123d0ae963fe76. 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/USNA10319618.
Narada Decade (The Anniversary Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbe100beca4f694fc24450493723ba1d524f94f89eac717c0863b637c50f5c4. 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/USNA19312006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51942ce89a9b23c0460b3434c198c1c4fe35646dc8f2d2a7be2698d5cabeaaa7. 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/USNA18812231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1d8c1198b8d090caa12e4e2cf26d582ef300b65c76f496f53adf16d9924f5a. 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/USNA18812234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738f95f551b4f1681a00f83137f5f5b57a202d3210e1f3362d8010b94c8c9f03. 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/USNA18813566.