Carl Michael Von Hausswolff
type: MusicGroup
genre: avant-garde
genre: dark ambient
genre: drone
genre: experimental
description: Carl Michael von Hausswolff (born 1956) is a composer, visual artist, and curator based in Stockholm, Sweden. His main tools are recording devices (camera, tape deck, radar, sonar) used in an ongoing
popularity: 6
followers: 2266
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  value: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5785a900d5f23cd8375b26bd75c6a1ca5ee1ebab7a8d412b8741ceab4b614a. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97f882c6-6ada-46d5-a78a-9a08fe50c668.json and https://artists.proofprofile.net/proofs/artist/97f882c6-6ada-46d5-a78a-9a08fe50c668.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
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album: The National Anthem of Elgaland-Vargaland #1
  type: MusicAlbum
  date published: 1996-10-14
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