Endtime Friendtime
type: MusicGroup
popularity: 7
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef179c021660903143a56a8401c310605230d38746608b55bea37b5e8fdef5dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953885
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953885
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0b65a8fa-bcec-42f4-ad5e-8dc9e98edb8c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0b65a8fa-bcec-42f4-ad5e-8dc9e98edb8c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0b65a8fa-bcec-42f4-ad5e-8dc9e98edb8c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:12:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef179c021660903143a56a8401c310605230d38746608b55bea37b5e8fdef5dd","name":"Endtime Friendtime","registered_at":"2026-06-15T17:32:15Z","symbol":"NIM0780873","token_address":"0x51f69ce5e30b471de85f0f72bfd63e92de8744b6","type":"artist","uuid":"0b65a8fa-bcec-42f4-ad5e-8dc9e98edb8c"}
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 0xef179c021660903143a56a8401c310605230d38746608b55bea37b5e8fdef5dd. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b65a8fa-bcec-42f4-ad5e-8dc9e98edb8c.json and https://artists.proofprofile.net/proofs/artist/0b65a8fa-bcec-42f4-ad5e-8dc9e98edb8c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T04:12:47Z
  text: {"copyright_id":"0xef179c021660903143a56a8401c310605230d38746608b55bea37b5e8fdef5dd","name":"Endtime Friendtime","registered_at":"2026-06-15T17:32:15Z","symbol":"NIM0780873","token_address":"0x51f69ce5e30b471de85f0f72bfd63e92de8744b6","type":"artist","uuid":"0b65a8fa-bcec-42f4-ad5e-8dc9e98edb8c"}
album: Satin Blue
  type: MusicAlbum
  date published: 2023-09-01
album: Oslo 22
  type: MusicAlbum
  date published: 2023-09-29
album: Doing Revenge
  type: MusicAlbum
  date published: 2023-11-03
album: The Sun & I
  type: MusicAlbum
  date published: 2023-11-24
album: Ode To That Son Of A Bitch
  type: MusicAlbum
  date published: 2024-02-09
album: Numbers Until We Die
  type: MusicAlbum
  date published: 2024-04-12
album: Endtime Friendtime
  type: MusicAlbum
  date published: 2024-09-06
  track: Doing Revenge
    type: MusicRecording
    duration: PT4M55S
    duration ms: 295927
    explicit: true
    by artist: Endtime Friendtime
    in album: Endtime Friendtime
      type: MusicAlbum
      date published: 2024-09-06
    isrc code: QZTB82337358
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T16:00:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc494941888f6722d780d82e3956ca9892065fff8ce52cd30b6dd37bdf857f6d0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB82337358
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xc494941888f6722d780d82e3956ca9892065fff8ce52cd30b6dd37bdf857f6d0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB82337358 — a six-check JSON result.
      date published: 2026-07-05T19:27:56Z
    audio: Doing Revenge
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.663
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.292
      additional property: Energy
        type: PropertyValue
        value: 0.919
      additional property: Speechiness
        type: PropertyValue
        value: 0.095
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.719
      additional property: Liveness
        type: PropertyValue
        value: 0.404
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.495
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.375
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: The Sun & I
    type: MusicRecording
    duration: PT4M42S
    duration ms: 282145
    explicit: false
    by artist: Endtime Friendtime
    in album: Endtime Friendtime
      type: MusicAlbum
      date published: 2024-09-06
    isrc code: QZTBF2369773
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:06:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa42761296976ab798a642ba3c85670a2a720da61bd37f3d9413f0fa2a492bdfa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBF2369773
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0xa42761296976ab798a642ba3c85670a2a720da61bd37f3d9413f0fa2a492bdfa. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBF2369773 — a six-check JSON result.
      date published: 2026-07-06T01:25:57Z
    audio: The Sun & I
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.055
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.626
      additional property: Energy
        type: PropertyValue
        value: 0.801
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Speechiness
type: PropertyValue
value: 0.028

Acousticness
type: PropertyValue
value: 0.009

Instrumentalness
type: PropertyValue
value: 0.017

Liveness
type: PropertyValue
value: 0.086

Valence (Positivity)
type: PropertyValue
value: 0.495

Loudness (dB)
type: PropertyValue
value: -6.276

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major