the Crossover
type: MusicGroup
genre: trance
description: The Crossover is a 2014 children's book by American author Kwame Alexander and the winner of the 2015 Newbery Medal and Coretta Scott King Award Honor. The book, which is told entirely through verse,
popularity: 7
followers: 138
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x663d2c5fc586b39cd679c4e6a3ea86926485f89c23ad7b9661b21f49c47bf22b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e32c1015-4edd-4483-9a49-8353d44fccfa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e32c1015-4edd-4483-9a49-8353d44fccfa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e32c1015-4edd-4483-9a49-8353d44fccfa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x663d2c5fc586b39cd679c4e6a3ea86926485f89c23ad7b9661b21f49c47bf22b","name":"the Crossover","registered_at":"2026-06-21T07:32:36Z","symbol":"NIM1863562","token_address":"0x8e9e28ab2403c2e3a71e7071e298950ccc3f5161","type":"artist","uuid":"e32c1015-4edd-4483-9a49-8353d44fccfa"}
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 0x663d2c5fc586b39cd679c4e6a3ea86926485f89c23ad7b9661b21f49c47bf22b. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e32c1015-4edd-4483-9a49-8353d44fccfa.json and https://artists.proofprofile.net/proofs/artist/e32c1015-4edd-4483-9a49-8353d44fccfa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x663d2c5fc586b39cd679c4e6a3ea86926485f89c23ad7b9661b21f49c47bf22b","name":"the Crossover","registered_at":"2026-06-21T07:32:36Z","symbol":"NIM1863562","token_address":"0x8e9e28ab2403c2e3a71e7071e298950ccc3f5161","type":"artist","uuid":"e32c1015-4edd-4483-9a49-8353d44fccfa"}
album: Out of the Shadows Lp
  type: MusicAlbum
  date published: 2011-08-25