Mac Smart
type: MusicGroup
popularity: 4
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d1b71e9bd74dbd32b5cecb4d05806ea973e95fba03fe3b9d2484e2a33798728
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c75fd4f-0f7a-4aae-86a4-860c93e35697.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c75fd4f-0f7a-4aae-86a4-860c93e35697.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4c75fd4f-0f7a-4aae-86a4-860c93e35697
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1d1b71e9bd74dbd32b5cecb4d05806ea973e95fba03fe3b9d2484e2a33798728","name":"Mac Smart","registered_at":"2026-06-16T16:33:19Z","symbol":"NIM1110486","token_address":"0x9855fdf5718c9f1b7e0c9ba934a1769b47f46cbf","type":"artist","uuid":"4c75fd4f-0f7a-4aae-86a4-860c93e35697"}
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 0x1d1b71e9bd74dbd32b5cecb4d05806ea973e95fba03fe3b9d2484e2a33798728. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c75fd4f-0f7a-4aae-86a4-860c93e35697.json and https://artists.proofprofile.net/proofs/artist/4c75fd4f-0f7a-4aae-86a4-860c93e35697.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x1d1b71e9bd74dbd32b5cecb4d05806ea973e95fba03fe3b9d2484e2a33798728","name":"Mac Smart","registered_at":"2026-06-16T16:33:19Z","symbol":"NIM1110486","token_address":"0x9855fdf5718c9f1b7e0c9ba934a1769b47f46cbf","type":"artist","uuid":"4c75fd4f-0f7a-4aae-86a4-860c93e35697"}
album: Gang Sheet
  type: MusicAlbum
  date published: 2024-12-29
album: Amores & Terrores
  type: MusicAlbum
  date published: 2025-02-15
album: El Limite El Cielo
  type: MusicAlbum
  date published: 2025-04-11