15
type: MusicGroup
description: Fifteen or 15 may refer to: 15 (number), the natural number following 14 and preceding 16 one of the years 15 BC, AD 15, 1915, 2015 Music Fifteen (band), a punk rock band Albums 15 (Buckcherry
popularity: 8
followers: 243
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef6fd482ad27942e4e2337c4d2b2275ab309fe2f4436bcd59f39c1db40f85293
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/356153b0-4488-4271-91dd-7f80c1a52f66.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/356153b0-4488-4271-91dd-7f80c1a52f66.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/356153b0-4488-4271-91dd-7f80c1a52f66
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
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 0xef6fd482ad27942e4e2337c4d2b2275ab309fe2f4436bcd59f39c1db40f85293. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/356153b0-4488-4271-91dd-7f80c1a52f66.json and https://artists.proofprofile.net/proofs/artist/356153b0-4488-4271-91dd-7f80c1a52f66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
album: Intro
  type: MusicAlbum
  date published: 2019-12-30
album: Radiation Area
  type: MusicAlbum
  date published: 2020-03-10
album: Problems
  type: MusicAlbum
  date published: 2021-08-16
album: Ready 4 Ah Tape
  type: MusicAlbum
  date published: 2022-03-02
album: BangBangForevaaa
  type: MusicAlbum
  date published: 2022-07-07
album: BangBangForevaaa
  type: MusicAlbum
  date published: 2022-07-07
album: BangBangForevaaa (DELUXE)
  type: MusicAlbum
  date published: 2022-09-15
album: DonDada
  type: MusicAlbum
  date published: 2023-01-13
album: My Year
  type: MusicAlbum
  date published: 2023-03-31
album: GOAT
  type: MusicAlbum
  date published: 2024-03-30
album: Life
  type: MusicAlbum
  date published: 2024-10-11
album: In New York's embrace
  type: MusicAlbum
  date published: 2024-10-24
album: Totally Goatyyy
  type: MusicAlbum
  date published: 2025-05-22