Yotsuya Kaidan
type: MusicGroup
genre: emocore
genre: melodic hardcore
genre: screamo
description: thumb|250px|Utagawa Kuniyoshi's portrait of Oiwa. , the story of Oiwa and Tamiya Iemon, is a tale of betrayal, murder and onryō (a revenant). Arguably the most famous kaidan (Japanese ghost story) o
popularity: 4
followers: 958
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9ba5bc09e6a25d0c15fa5711b480ac9df1ead71f3d792c35bbd6f488677acbf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af822a4f-2d5b-4d71-bf0e-350b638365c4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af822a4f-2d5b-4d71-bf0e-350b638365c4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/af822a4f-2d5b-4d71-bf0e-350b638365c4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf9ba5bc09e6a25d0c15fa5711b480ac9df1ead71f3d792c35bbd6f488677acbf","name":"Yotsuya Kaidan","registered_at":"2026-06-20T11:39:42Z","symbol":"NIM1603025","token_address":"0xcf80a230a15cb99a961f01c649b94f6fdb472393","type":"artist","uuid":"af822a4f-2d5b-4d71-bf0e-350b638365c4"}
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ba5bc09e6a25d0c15fa5711b480ac9df1ead71f3d792c35bbd6f488677acbf. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af822a4f-2d5b-4d71-bf0e-350b638365c4.json and https://artists.proofprofile.net/proofs/artist/af822a4f-2d5b-4d71-bf0e-350b638365c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf9ba5bc09e6a25d0c15fa5711b480ac9df1ead71f3d792c35bbd6f488677acbf","name":"Yotsuya Kaidan","registered_at":"2026-06-20T11:39:42Z","symbol":"NIM1603025","token_address":"0xcf80a230a15cb99a961f01c649b94f6fdb472393","type":"artist","uuid":"af822a4f-2d5b-4d71-bf0e-350b638365c4"}
album: Tired of Tomorrow's You
  type: MusicAlbum
  date published: 2016-04-09
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  type: MusicAlbum
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