Hiroko
type: MusicGroup
genre: indian indie
description: is a common feminine Japanese given name. Name meanings Hiroko can be written using different kanji characters and can mean: 裕子, "Kind child" 弘子, "Beautiful child" 寛子, "Kind, tolerant child" 浩子, "L
popularity: 2
followers: 2120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x079ae475f3fa6c46eb48aa458b85f0a229ef1370db2da68129cf61879d020d40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953847
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953847
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0134ccc5-c2d7-4d53-ae45-07a3cadeadae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0134ccc5-c2d7-4d53-ae45-07a3cadeadae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0134ccc5-c2d7-4d53-ae45-07a3cadeadae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:51:00Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079ae475f3fa6c46eb48aa458b85f0a229ef1370db2da68129cf61879d020d40. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0134ccc5-c2d7-4d53-ae45-07a3cadeadae.json and https://artists.proofprofile.net/proofs/artist/0134ccc5-c2d7-4d53-ae45-07a3cadeadae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: Arigatou
  type: MusicAlbum
  date published: 2019-11-26
album: Arigatou (Piano version)
  type: MusicAlbum
  date published: 2019-12-25
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  type: MusicAlbum
  date published: 2021-04-15
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  type: MusicAlbum
  date published: 2022-10-14
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  type: MusicAlbum
  date published: 2023-06-23
album: Hanamizuki (feat. Yo Hitoto) [Cover] [Indian Fusion]
  type: MusicAlbum
  date published: 2023-08-27