Tristen Longfellow
type: MusicGroup
genre: background-piano
popularity: 14
followers: 256
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a40edb5a3005d83daf7d832b291bb6f5463cbf1464552a1894c5de26fd11a2c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dec29819-6ec3-4dd2-b9ff-52a13bef3c0b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dec29819-6ec3-4dd2-b9ff-52a13bef3c0b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dec29819-6ec3-4dd2-b9ff-52a13bef3c0b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a40edb5a3005d83daf7d832b291bb6f5463cbf1464552a1894c5de26fd11a2c","name":"Tristen Longfellow","registered_at":"2026-06-15T03:50:43Z","symbol":"NIM0673100","token_address":"0x36e55c69c6bf77c22b87d97ab70f4a3babe15f83","type":"artist","uuid":"dec29819-6ec3-4dd2-b9ff-52a13bef3c0b"}
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 0x4a40edb5a3005d83daf7d832b291bb6f5463cbf1464552a1894c5de26fd11a2c. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dec29819-6ec3-4dd2-b9ff-52a13bef3c0b.json and https://artists.proofprofile.net/proofs/artist/dec29819-6ec3-4dd2-b9ff-52a13bef3c0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0x4a40edb5a3005d83daf7d832b291bb6f5463cbf1464552a1894c5de26fd11a2c","name":"Tristen Longfellow","registered_at":"2026-06-15T03:50:43Z","symbol":"NIM0673100","token_address":"0x36e55c69c6bf77c22b87d97ab70f4a3babe15f83","type":"artist","uuid":"dec29819-6ec3-4dd2-b9ff-52a13bef3c0b"}
album: Sollievo
  type: MusicAlbum
  date published: 2023-01-19
album: die kleine Raupe
  type: MusicAlbum
  date published: 2021-08-08
  track: die kleine Raupe
album: Le salut de nos jours
  type: MusicAlbum
  date published: 2019-06-19

die kleine Raupe
type: MusicRecording
duration: PT2M37S
duration ms: 157984
explicit: false
by artist: Tristen Longfellow
in album: die kleine Raupe
  type: MusicAlbum
  date published: 2021-08-08
genre: background-piano
isrc code: QZAKB2131127
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T15:41:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x831a8d6b9cf826f5ccc16ac4d4ea09ec76ae9c13a66a99e2df9a93677a3abac4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2131127
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953515
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:53:06+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831a8d6b9cf826f5ccc16ac4d4ea09ec76ae9c13a66a99e2df9a93677a3abac4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2131127.
  date published: 2026-06-13T12:53:06Z
audio: die kleine Raupe
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.897
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.474
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.925
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.146
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.076
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major