Steve Sinko
type: MusicGroup
description: Stephen Patrick Sinko (September 14, 1909 – March 1, 1999) was an American football player and coach. He played professionally as a guard and tackle in the National Football League (NFL) for the Bosto
popularity: 2
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb81220fc41132d6aecb8350fbdfd31ee30dd6db30eb3771b96067180a24261d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f58cc00-ce36-45ae-be33-756defd2e97b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f58cc00-ce36-45ae-be33-756defd2e97b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7f58cc00-ce36-45ae-be33-756defd2e97b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeb81220fc41132d6aecb8350fbdfd31ee30dd6db30eb3771b96067180a24261d","name":"Steve Sinko","registered_at":"2026-06-17T10:05:04Z","symbol":"NIM1361391","token_address":"0x4315c1aab227cbc8fbb505bb7999188dcc87f5ca","type":"artist","uuid":"7f58cc00-ce36-45ae-be33-756defd2e97b"}
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 0xeb81220fc41132d6aecb8350fbdfd31ee30dd6db30eb3771b96067180a24261d. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f58cc00-ce36-45ae-be33-756defd2e97b.json and https://artists.proofprofile.net/proofs/artist/7f58cc00-ce36-45ae-be33-756defd2e97b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0xeb81220fc41132d6aecb8350fbdfd31ee30dd6db30eb3771b96067180a24261d","name":"Steve Sinko","registered_at":"2026-06-17T10:05:04Z","symbol":"NIM1361391","token_address":"0x4315c1aab227cbc8fbb505bb7999188dcc87f5ca","type":"artist","uuid":"7f58cc00-ce36-45ae-be33-756defd2e97b"}