Idolcollege
type: MusicGroup
popularity: 4
followers: 310
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1315ca07a8f3c456a3df3ee45eb8785c52b1fdd44b83eb4bd0e343159596fbe4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954010
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954010
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/341286a6-6586-486d-81ca-4d6ed7e46d76.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/341286a6-6586-486d-81ca-4d6ed7e46d76.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/341286a6-6586-486d-81ca-4d6ed7e46d76
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:41:36Z
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 0x1315ca07a8f3c456a3df3ee45eb8785c52b1fdd44b83eb4bd0e343159596fbe4. Chain 2 (Bitcoin): anchored in block 954010 (2026-06-16T21:41:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/341286a6-6586-486d-81ca-4d6ed7e46d76.json and https://artists.proofprofile.net/proofs/artist/341286a6-6586-486d-81ca-4d6ed7e46d76.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T21:41:36Z
album: MASQUERADE A-Type
  type: MusicAlbum
  date published: 2019-12-10
album: MASQUERADE B-Type
  type: MusicAlbum
  date published: 2019-12-10
album: GOES ON A-Type
  type: MusicAlbum
  date published: 2020-12-09
album: GOES ON
  type: MusicAlbum
  date published: 2021-01-11
album: Selfless Days
  type: MusicAlbum
  date published: 2021-05-05
album: MUGAMUCHU Days A-Type
  type: MusicAlbum
  date published: 2021-08-04
album: MUGAMUCHU Days B-Type
  type: MusicAlbum
  date published: 2021-08-04
album: RAINBOW GATE
  type: MusicAlbum
  date published: 2022-06-01
album: STRIPE
  type: MusicAlbum
  date published: 2022-11-30
album: Idol College Bestalbum 2023 ~Twilight~
  type: MusicAlbum
  date published: 2023-04-01
album: ICHIBANBOSHI Type-C
  type: MusicAlbum
  date published: 2023-07-05
album: ICHIBANBOSHI Type-B
  type: MusicAlbum
  date published: 2023-07-05
album: ICHIBANBOSHI Type-A
  type: MusicAlbum
  date published: 2023-07-05
album: number one principle Type-A
  type: MusicAlbum
  date published: 2024-08-01
album: number one principle Type-B
  type: MusicAlbum
  date published: 2024-08-01
album: Long Good Bye (idolcollege Ver)
  type: MusicAlbum
  date published: 2024-09-04
album: Owen
  type: MusicAlbum
  date published: 2025-06-09