Mark Rivera
type: MusicGroup
description: Mark Rivera (born May 24, 1953) is an American saxophonist, multi-instrumentalist, singer, and musical director who is mostly known for his work with Billy Joel. In addition to playing soprano, alto,
popularity: 2
followers: 445
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x666b9a7462a813da46ee0094f764e1d74c2e3d90286ab31fa2e1a0794ce4e7ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/65767a91-7a5d-470f-b707-e377a6a3651d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/65767a91-7a5d-470f-b707-e377a6a3651d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/65767a91-7a5d-470f-b707-e377a6a3651d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x666b9a7462a813da46ee0094f764e1d74c2e3d90286ab31fa2e1a0794ce4e7ee","name":"Mark Rivera","registered_at":"2026-06-17T01:21:52Z","symbol":"NIM1236595","token_address":"0xfe17ad9ae05208e36e0e24045f24cc48a3e6aea7","type":"artist","uuid":"65767a91-7a5d-470f-b707-e377a6a3651d"}
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 0x666b9a7462a813da46ee0094f764e1d74c2e3d90286ab31fa2e1a0794ce4e7ee. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65767a91-7a5d-470f-b707-e377a6a3651d.json and https://artists.proofprofile.net/proofs/artist/65767a91-7a5d-470f-b707-e377a6a3651d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x666b9a7462a813da46ee0094f764e1d74c2e3d90286ab31fa2e1a0794ce4e7ee","name":"Mark Rivera","registered_at":"2026-06-17T01:21:52Z","symbol":"NIM1236595","token_address":"0xfe17ad9ae05208e36e0e24045f24cc48a3e6aea7","type":"artist","uuid":"65767a91-7a5d-470f-b707-e377a6a3651d"}
album: Turn Me Loose
  type: MusicAlbum
  date published: 2012-06-15
album: Common Bond
  type: MusicAlbum
  date published: 2014-02-18
album: Common Bond
  type: MusicAlbum
  date published: 2014-02-18
album: Starting
  type: MusicAlbum
  date published: 2015-01-05
album: Why You Dance so Good (Savoy Mix)
  type: MusicAlbum
  date published: 2023-05-01
album: Embargo
  type: MusicAlbum
  date published: 2024-11-20
album: The Vulture
  type: MusicAlbum
  date published: 2025-02-03
album: Anomaly
  type: MusicAlbum
  date published: 2025-05-15