Big A
type: MusicGroup
description: Big A or The Big A is the nickname of the following: Nickname for Atlanta, Georgia Angel Stadium (formey Anaheim Stadium), California Big A Sign , that Japanese bombers sank in the attack on Pear
popularity: 12
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6c6582ee04fc29337231b84dcadb749bd75a256b24d288ed33255a2e4e7b4de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/705f84ab-d564-4e74-ae65-e12d4908c64c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/705f84ab-d564-4e74-ae65-e12d4908c64c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/705f84ab-d564-4e74-ae65-e12d4908c64c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa6c6582ee04fc29337231b84dcadb749bd75a256b24d288ed33255a2e4e7b4de","name":"Big A","registered_at":"2026-06-14T16:12:27Z","symbol":"NIM0506473","token_address":"0x8af8fe99c15c40802b500a007985623e11051f93","type":"artist","uuid":"705f84ab-d564-4e74-ae65-e12d4908c64c"}
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 0xa6c6582ee04fc29337231b84dcadb749bd75a256b24d288ed33255a2e4e7b4de. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/705f84ab-d564-4e74-ae65-e12d4908c64c.json and https://artists.proofprofile.net/proofs/artist/705f84ab-d564-4e74-ae65-e12d4908c64c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:38:09Z
  text: {"copyright_id":"0xa6c6582ee04fc29337231b84dcadb749bd75a256b24d288ed33255a2e4e7b4de","name":"Big A","registered_at":"2026-06-14T16:12:27Z","symbol":"NIM0506473","token_address":"0x8af8fe99c15c40802b500a007985623e11051f93","type":"artist","uuid":"705f84ab-d564-4e74-ae65-e12d4908c64c"}
album: ILLstrumentals, Vol. 1
  type: MusicAlbum
  date published: 2021-05-28
album: ILLstrumentals, Vol. 2
  type: MusicAlbum
  date published: 2022-03-25