A Last Effect
type: MusicGroup
popularity: 17
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb705f503562717e7f0a65e8f3534ff7bf530ac60a45feae75f17510d7b053d67
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b24668e8-9e08-45c9-beab-ec8346607ea1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b24668e8-9e08-45c9-beab-ec8346607ea1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b24668e8-9e08-45c9-beab-ec8346607ea1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb705f503562717e7f0a65e8f3534ff7bf530ac60a45feae75f17510d7b053d67","name":"A Last Effect","registered_at":"2026-06-14T23:11:37Z","symbol":"NIM0606425","token_address":"0xccb613da70e67f6298063d1045575c54b137d2cd","type":"artist","uuid":"b24668e8-9e08-45c9-beab-ec8346607ea1"}
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 0xb705f503562717e7f0a65e8f3534ff7bf530ac60a45feae75f17510d7b053d67. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b24668e8-9e08-45c9-beab-ec8346607ea1.json and https://artists.proofprofile.net/proofs/artist/b24668e8-9e08-45c9-beab-ec8346607ea1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T07:48:25Z
  text: {"copyright_id":"0xb705f503562717e7f0a65e8f3534ff7bf530ac60a45feae75f17510d7b053d67","name":"A Last Effect","registered_at":"2026-06-14T23:11:37Z","symbol":"NIM0606425","token_address":"0xccb613da70e67f6298063d1045575c54b137d2cd","type":"artist","uuid":"b24668e8-9e08-45c9-beab-ec8346607ea1"}
album: Feel / Want
  type: MusicAlbum
  date published: 2024-07-04
album: Hope (2024 Remaster)
  type: MusicAlbum
  date published: 2024-07-04
album: dotdotdot (2024 Remaster)
  type: MusicAlbum
  date published: 2024-07-09
album: Tracksuits & Suvs
  type: MusicAlbum
  date published: 2024-07-12
album: This Simple Difference (2024 Remaster)
  type: MusicAlbum
  date published: 2024-08-16
album: Queen of Imperfection
  type: MusicAlbum
  date published: 2024-08-16
  track: Queen of Imperfection
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194676
    explicit: false
    by artist: A Last Effect
    in album: Queen of Imperfection
      type: MusicAlbum
      date published: 2024-08-16
    isrc code: USL4Q2418944
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T13:27:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfbf312d657f01c846d3ed1b5cc2e3b8e9ff56e76667d5fec7f40e94b7fdc23be
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q2418944
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0xfbf312d657f01c846d3ed1b5cc2e3b8e9ff56e76667d5fec7f40e94b7fdc23be. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USL4Q2418944.
      date published: 2026-07-16T16:14:30Z
    audio: Queen of Imperfection
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.012
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.679
      additional property: Energy
        type: PropertyValue
        value: 0.535
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      additional property: Acousticness
        type: PropertyValue
        value: 0.115
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.493
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.078
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Like a Ghost
  type: MusicAlbum
  date published: 2024-09-27
  track: Like a Ghost
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202840
    explicit: false
    by artist: A Last Effect
    in album: Like a Ghost
      type: MusicAlbum
      date published: 2024-09-27
    isrc code: USL4R2442257
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T21:18:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4e3a0087464c1cdca4bcfde949c5f38c9722233b5a9c5c91ef5a3ce2e8f5eb95
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957754
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957754
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2442257
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:26:22Z
    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 0x4e3a0087464c1cdca4bcfde949c5f38c9722233b5a9c5c91ef5a3ce2e8f5eb95. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USL4R2442257.
      date published: 2026-07-12T21:26:22Z
    audio: Like a Ghost
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.989
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.523
      additional property: Energy
        type: PropertyValue
        value: 0.408
      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
album: Sitting Here (2024 Remaster)
album: Pure
album: We Know We Have to Be Smart (2024 Remaster)
album: Your Own Revolt (2024 Remaster)
album: Most Favourite Thing
album: Hope
album: The Feel / Want Sessions

Speechiness
type: PropertyValue
value: 0.027

Acousticness
type: PropertyValue
value: 0.183

Instrumentalness
type: PropertyValue
value: 0.019

Liveness
type: PropertyValue
value: 0.135

Valence (Positivity)
type: PropertyValue
value: 0.253

Loudness (dB)
type: PropertyValue
value: -11.144

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Sitting Here (2024 Remaster)
type: MusicAlbum
date published: 2024-09-27

Pure
type: MusicAlbum
date published: 2024-12-21

We Know We Have to Be Smart (2024 Remaster)
type: MusicAlbum
date published: 2024-12-21

Your Own Revolt (2024 Remaster)
type: MusicAlbum
date published: 2025-01-29

Most Favourite Thing
type: MusicAlbum
date published: 2025-01-30

Hope
type: MusicAlbum
date published: 2025-09-10

The Feel / Want Sessions
type: MusicAlbum
date published: 2025-09-12