Open Mic
type: MusicGroup
genre: underground hip hop
description: thumb|A musician at a Sausalito open mic in July 2008 An open mic or open mike (shortened from "open microphone") is a live show at a venue such as a coffeehouse, nightclub, comedy club, strip club,
popularity: 8
followers: 350
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9af0a3196de6a8147ae6a44c1f586e619aec09808ce1f2a735c522eab204fa6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7de6a73-f293-45f4-9020-2d252c14ec2c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7de6a73-f293-45f4-9020-2d252c14ec2c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e7de6a73-f293-45f4-9020-2d252c14ec2c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9af0a3196de6a8147ae6a44c1f586e619aec09808ce1f2a735c522eab204fa6","name":"Open Mic","registered_at":"2026-06-21T09:21:45Z","symbol":"NIM1886412","token_address":"0xdd51df97ab36d9974d5442001903ae7209ef2cd4","type":"artist","uuid":"e7de6a73-f293-45f4-9020-2d252c14ec2c"}
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 0xc9af0a3196de6a8147ae6a44c1f586e619aec09808ce1f2a735c522eab204fa6. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7de6a73-f293-45f4-9020-2d252c14ec2c.json and https://artists.proofprofile.net/proofs/artist/e7de6a73-f293-45f4-9020-2d252c14ec2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xc9af0a3196de6a8147ae6a44c1f586e619aec09808ce1f2a735c522eab204fa6","name":"Open Mic","registered_at":"2026-06-21T09:21:45Z","symbol":"NIM1886412","token_address":"0xdd51df97ab36d9974d5442001903ae7209ef2cd4","type":"artist","uuid":"e7de6a73-f293-45f4-9020-2d252c14ec2c"}
album: For the Rebels 2 Ep
  type: MusicAlbum
  date published: 2014-03-21