thumb|Julia Hülsmann Julia Hülsmann (born 17 July 1968 in Bonn, West Germany) is a German jazz pianist and composer. Her compositions are often based on literary works, especially poetry. Biography
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 0xda18d6f56d121dfb663a4953f9f359d0ff3d16212198384078c80f02797752f1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6599c5b6-4127-4887-97e0-9c3a0d06e151.json and https://artists.proofprofile.net/proofs/artist/6599c5b6-4127-4887-97e0-9c3a0d06e151.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f6ce136abf1784f77bd5895fc1094763a088a2e5d1d5748747b8f875d7ea0a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEB331654701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f4cb2f618b776af325401fba52a834ab5907381a15224eeebc965d60d65722. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEB331654703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b4c1562c7f4a60f1367c5b2969a175d6f88b3e5069804bb7bd530f23e4c3fc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEB331654705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903ba2a0ee4ccfe3ec075175ed56a2a846c3b9e41724d388522ee68278659caa. 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/DEB331654706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a2afabe7bf44d2fc536e4a5ce48d2df61fb38c7458c146451aa87267375fca. 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/DEB331654707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5755d81be44e9814d147be68db8d0a5ede868a3127f015b0d22173ae20ac164. 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/DEB331654709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9688c09709e6a0f3ef56dfa18681db724f7f49545331365fd480d1b21363cce. 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/DEB330807901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482f016346eb4b22133e8ca32d4d87951166c954ade58242a77fb55fd0938f84. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEB330807903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700e03a2d25b5c9d0cf12ec042027499ca342ae3bff61045370c662458357c57. 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/DEB330807908.
A Clear Midnight / Kurt Weill And America