Joey Kramer
type: MusicGroup
description: Joseph Michael Kramer (born June 21, 1950) is an American musician best known as the drummer of the hard rock band Aerosmith, which was inducted to the Rock and Roll Hall of Fame in 2001. Personal li
popularity: 19
followers: 668
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x506dd5ae9b6a2f9384995efd597092d0316192ea6f86a0520b2a257a11b52438
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d320b7a7-14cd-4460-81c0-2fa7ab5785c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d320b7a7-14cd-4460-81c0-2fa7ab5785c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d320b7a7-14cd-4460-81c0-2fa7ab5785c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x506dd5ae9b6a2f9384995efd597092d0316192ea6f86a0520b2a257a11b52438","name":"Joey Kramer","registered_at":"2026-06-15T02:41:35Z","symbol":"NIM0656598","token_address":"0x47e2b4ecc69a8c03251f1a9c16ed3b87a4405104","type":"artist","uuid":"d320b7a7-14cd-4460-81c0-2fa7ab5785c0"}
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 0x506dd5ae9b6a2f9384995efd597092d0316192ea6f86a0520b2a257a11b52438. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d320b7a7-14cd-4460-81c0-2fa7ab5785c0.json and https://artists.proofprofile.net/proofs/artist/d320b7a7-14cd-4460-81c0-2fa7ab5785c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0x506dd5ae9b6a2f9384995efd597092d0316192ea6f86a0520b2a257a11b52438","name":"Joey Kramer","registered_at":"2026-06-15T02:41:35Z","symbol":"NIM0656598","token_address":"0x47e2b4ecc69a8c03251f1a9c16ed3b87a4405104","type":"artist","uuid":"d320b7a7-14cd-4460-81c0-2fa7ab5785c0"}
album: Ga
  type: MusicAlbum
  date published: 2025-11-28