13
type: MusicGroup
description: Thirteen or 13 may refer to: 13 (number), the natural number following 12 and preceding 14 Any of the years 13 BC, AD 13, 1913, or 2013 Music Albums 13 (Black Sabbath album), 2013 13 (Blur albu
popularity: 2
followers: 43
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe2aeeaa204ad2b7856215f38448abe5f45c5133c5372ea6227e4e9b1fc331f0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76c62630-2e07-4fe8-b45c-3bf87a68ba69.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76c62630-2e07-4fe8-b45c-3bf87a68ba69.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/76c62630-2e07-4fe8-b45c-3bf87a68ba69
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0xfe2aeeaa204ad2b7856215f38448abe5f45c5133c5372ea6227e4e9b1fc331f0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76c62630-2e07-4fe8-b45c-3bf87a68ba69.json and https://artists.proofprofile.net/proofs/artist/76c62630-2e07-4fe8-b45c-3bf87a68ba69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Time 2 Win
  type: MusicAlbum
  date published: 2019-08-23
album: Walking Around with a Stick
  type: MusicAlbum
  date published: 2019-09-17
album: Money Moves
  type: MusicAlbum
  date published: 2019-11-30
album: Voices in my Head
  type: MusicAlbum
  date published: 2019-12-13
album: Big Shit
  type: MusicAlbum
  date published: 2019-12-13
album: Big Dog Status
  type: MusicAlbum
  date published: 2020-01-16
album: Big Dog Status 2
  type: MusicAlbum
  date published: 2020-01-19
album: 4 Real
  type: MusicAlbum
  date published: 2021-01-16