Jack M. Senff
type: MusicGroup
popularity: 17
followers: 2929
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xacb3b8a6a9dd10adcf2d615d56a612d389a994e27052433b0cdef5af9833051b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/51409ea5-091a-430c-8a5b-52a44d3c933c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/51409ea5-091a-430c-8a5b-52a44d3c933c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/51409ea5-091a-430c-8a5b-52a44d3c933c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xacb3b8a6a9dd10adcf2d615d56a612d389a994e27052433b0cdef5af9833051b","name":"Jack M. Senff","registered_at":"2026-06-14T13:01:10Z","symbol":"NIM0460831","token_address":"0xed2198c6f7c647ec469e3127dd5397415c2d565a","type":"artist","uuid":"51409ea5-091a-430c-8a5b-52a44d3c933c"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb3b8a6a9dd10adcf2d615d56a612d389a994e27052433b0cdef5af9833051b. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51409ea5-091a-430c-8a5b-52a44d3c933c.json and https://artists.proofprofile.net/proofs/artist/51409ea5-091a-430c-8a5b-52a44d3c933c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0xacb3b8a6a9dd10adcf2d615d56a612d389a994e27052433b0cdef5af9833051b","name":"Jack M. Senff","registered_at":"2026-06-14T13:01:10Z","symbol":"NIM0460831","token_address":"0xed2198c6f7c647ec469e3127dd5397415c2d565a","type":"artist","uuid":"51409ea5-091a-430c-8a5b-52a44d3c933c"}
album: Old Days
  type: MusicAlbum
  date published: 2019-06-04
album: Full Decay
  type: MusicAlbum
  date published: 2019-07-11
album: Redbird
  type: MusicAlbum
  date published: 2019-08-05
album: Somewhere
  type: MusicAlbum
  date published: 2019-08-29
album: Good to Know You
  type: MusicAlbum
  date published: 2019-09-06
  track: Old Days
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205752
    explicit: false
    by artist: Jack M. Senff
    in album: Good to Know You
      type: MusicAlbum
      date published: 2019-09-06
    isrc code: GBKPL1950775
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T02:54:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd0ae110373451f5c1405963da701855eef3a201f7524e5291ec6ad18030be492
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958955
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958955
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1950775
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:03:40Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ae110373451f5c1405963da701855eef3a201f7524e5291ec6ad18030be492. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBKPL1950775.
      date published: 2026-07-21T03:03:40Z
    audio: Old Days
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.973
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.836
      additional property: Energy
        type: PropertyValue
        value: 0.308
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.398
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.119
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.916
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.079
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Good to Know You
  type: MusicAlbum
  date published: 2019-09-06
album: Spring Songs, Vol. 1
  type: MusicAlbum
  date published: 2020-03-19
album: Live from Eureka Records
  type: MusicAlbum
  date published: 2020-07-31
album: Another Day
  type: MusicAlbum
  date published: 2020-10-07
album: These Northwood Blues
  type: MusicAlbum
  date published: 2020-10-23
album: Solo Takes
  type: MusicAlbum
  date published: 2021-04-02
album: Little Light
  type: MusicAlbum
  date published: 2022-04-28
album: Rat in the Silo
  type: MusicAlbum
  date published: 2022-05-25
album: Low Spirit
  type: MusicAlbum
  date published: 2022-06-03
album: Whole Heart / Best We Can
  type: MusicAlbum
  date published: 2024-06-12
album: Kickin' Around
  type: MusicAlbum
  date published: 2024-06-26
album: County Fair
  type: MusicAlbum
  date published: 2024-07-10
album: Snake
  type: MusicAlbum
  date published: 2024-07-24
album: Feeling & Devotion
  type: MusicAlbum
  date published: 2024-07-26
  track: County Fair
    type: MusicRecording
    duration: PT2M19S
    duration ms: 139613
    explicit: false
    by artist: Jack M. Senff
    in album: Feeling & Devotion
      type: MusicAlbum
      date published: 2024-07-26
    isrc code: QZTV32486413
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T19:34:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd3c06e24926f3f59c2cd35d4539ca06c075c57ab71c218cd7f3c962ae389cb9d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: County Fair

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958931

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTV32486413

OTSTimestamp
type: PropertyValue
value: 2026-07-20T21:15:01Z

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c06e24926f3f59c2cd35d4539ca06c075c57ab71c218cd7f3c962ae389cb9d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTV32486413.
date published: 2026-07-20T21:15:01Z

County Fair
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 126.184
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.744
additional property: Energy
  type: PropertyValue
  value: 0.457
additional property: Speechiness
  type: PropertyValue
  value: 0.029
additional property: Acousticness
  type: PropertyValue
  value: 0.781
additional property: Instrumentalness
  type: PropertyValue
  value: 0.001
additional property: Liveness
  type: PropertyValue
  value: 0.118
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.648
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.49
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major