eisen
type: MusicGroup
description: Eisen is a German surname meaning "iron". Notable people with the surname include: Arnold Eisen, professor of Jewish studies Arthur Arturovich Eisen, a Russian soloist with the Alexandrov Ensemble C
popularity: 2
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b770e791601c5dc1350e83a8bbdca5287db857873169eb4da45279349341e85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954130
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cbf8f4d-39ef-4871-88c8-a7d9b46ea89f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cbf8f4d-39ef-4871-88c8-a7d9b46ea89f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7cbf8f4d-39ef-4871-88c8-a7d9b46ea89f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:07:14Z
additional property: OTSCanonicalRecord
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 0x5b770e791601c5dc1350e83a8bbdca5287db857873169eb4da45279349341e85. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cbf8f4d-39ef-4871-88c8-a7d9b46ea89f.json and https://artists.proofprofile.net/proofs/artist/7cbf8f4d-39ef-4871-88c8-a7d9b46ea89f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:07:14Z
album: i have you
  type: MusicAlbum
  date published: 2023-05-09
album: i have you (variations)
  type: MusicAlbum
  date published: 2023-06-02
album: look at me
  type: MusicAlbum
  date published: 2023-07-20
album: Explain To Me
  type: MusicAlbum
  date published: 2023-07-24
album: lifetime
  type: MusicAlbum
  date published: 2023-09-23
album: Unconditionally
  type: MusicAlbum
  date published: 2023-10-03
album: Vow To My Friend
  type: MusicAlbum
  date published: 2024-02-13
album: SMITTEN
  type: MusicAlbum
  date published: 2024-08-01