Blood On My Hands
type: MusicGroup
genre: hardcore
genre: metalcore
description: "Blood on My Hands" is the first single from the Used's fourth studio album Artwork. The single was released on June 30, 2009 via 12-inch picture disc vinyl and digital download, and began airing on t
popularity: 4
followers: 904
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8a68835f59291f2e616d498b69d76efbbb16f36bdf756d419d123ac51e3102b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954013
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954013
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33fe3a40-5307-4de4-94b3-075b976089b9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33fe3a40-5307-4de4-94b3-075b976089b9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/33fe3a40-5307-4de4-94b3-075b976089b9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:27:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8a68835f59291f2e616d498b69d76efbbb16f36bdf756d419d123ac51e3102b","name":"Blood On My Hands","registered_at":"2026-06-16T08:00:36Z","symbol":"NIM0988160","token_address":"0x420eba1d4b4efe97888876aed823d3ba3a868573","type":"artist","uuid":"33fe3a40-5307-4de4-94b3-075b976089b9"}
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 0xb8a68835f59291f2e616d498b69d76efbbb16f36bdf756d419d123ac51e3102b. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33fe3a40-5307-4de4-94b3-075b976089b9.json and https://artists.proofprofile.net/proofs/artist/33fe3a40-5307-4de4-94b3-075b976089b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xb8a68835f59291f2e616d498b69d76efbbb16f36bdf756d419d123ac51e3102b","name":"Blood On My Hands","registered_at":"2026-06-16T08:00:36Z","symbol":"NIM0988160","token_address":"0x420eba1d4b4efe97888876aed823d3ba3a868573","type":"artist","uuid":"33fe3a40-5307-4de4-94b3-075b976089b9"}
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