Häftig
type: MusicGroup
popularity: 2
followers: 192
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a56b3b9faf93aac94b625bec7f6dc71ad6ac9e0509e7dfacd96d7c5ebab222c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a727c73c-caec-4b18-8227-69b06c14b5e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a727c73c-caec-4b18-8227-69b06c14b5e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a727c73c-caec-4b18-8227-69b06c14b5e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8a56b3b9faf93aac94b625bec7f6dc71ad6ac9e0509e7dfacd96d7c5ebab222c","name":"Häftig","registered_at":"2026-06-20T08:01:57Z","symbol":"NIM1560126","token_address":"0xafaf3216ea84038e45daec0a1330d9a8e2ac422e","type":"artist","uuid":"a727c73c-caec-4b18-8227-69b06c14b5e6"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a56b3b9faf93aac94b625bec7f6dc71ad6ac9e0509e7dfacd96d7c5ebab222c. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a727c73c-caec-4b18-8227-69b06c14b5e6.json and https://artists.proofprofile.net/proofs/artist/a727c73c-caec-4b18-8227-69b06c14b5e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x8a56b3b9faf93aac94b625bec7f6dc71ad6ac9e0509e7dfacd96d7c5ebab222c","name":"Häftig","registered_at":"2026-06-20T08:01:57Z","symbol":"NIM1560126","token_address":"0xafaf3216ea84038e45daec0a1330d9a8e2ac422e","type":"artist","uuid":"a727c73c-caec-4b18-8227-69b06c14b5e6"}
album: Häftig
  type: MusicAlbum
  date published: 2010-08-27
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  date published: 2013-10-29
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  type: MusicAlbum
  date published: 2014-08-27
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  date published: 2020-05-13
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  type: MusicAlbum
  date published: 2023-03-13
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-04-25
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  type: MusicAlbum
  date published: 2023-05-02
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  type: MusicAlbum
  date published: 2025-07-04