Walker Lahmann
type: MusicGroup
genre: bossa nova
popularity: 15
followers: 458
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7ab78d470afe00f101fb5290e512ff92dddff16e1784b883047083d07dacf80d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953765
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bdad2dab-a75f-4475-b6eb-0483ac57aa1e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bdad2dab-a75f-4475-b6eb-0483ac57aa1e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bdad2dab-a75f-4475-b6eb-0483ac57aa1e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:55:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7ab78d470afe00f101fb5290e512ff92dddff16e1784b883047083d07dacf80d","name":"Walker Lahmann","registered_at":"2026-06-15T00:24:58Z","symbol":"NIM0623950","token_address":"0xdd60e3151a06b04088caf9e207cf7d7a89263153","type":"artist","uuid":"bdad2dab-a75f-4475-b6eb-0483ac57aa1e"}
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 0x7ab78d470afe00f101fb5290e512ff92dddff16e1784b883047083d07dacf80d. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bdad2dab-a75f-4475-b6eb-0483ac57aa1e.json and https://artists.proofprofile.net/proofs/artist/bdad2dab-a75f-4475-b6eb-0483ac57aa1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0x7ab78d470afe00f101fb5290e512ff92dddff16e1784b883047083d07dacf80d","name":"Walker Lahmann","registered_at":"2026-06-15T00:24:58Z","symbol":"NIM0623950","token_address":"0xdd60e3151a06b04088caf9e207cf7d7a89263153","type":"artist","uuid":"bdad2dab-a75f-4475-b6eb-0483ac57aa1e"}
album: Something
  type: MusicAlbum
  date published: 2024-02-27
album: All of Me
  type: MusicAlbum
  date published: 2023-04-13
album: Summertime
  type: MusicAlbum
  date published: 2022-09-07
album: Misty
  type: MusicAlbum
  date published: 2021-12-20
album: A Banca do Distinto
  type: MusicAlbum
  date published: 2021-11-20
  track: A Banca do Distinto
album: When I Fall in Love
  type: MusicAlbum
  date published: 2021-10-06
album: Dream a Little Dream of Me
  type: MusicAlbum
  date published: 2021-08-13
album: Fly Me to the Moon
  type: MusicAlbum
  date published: 2021-07-30
album: What a Wonderful World
  type: MusicAlbum
  date published: 2021-06-11
album: She
  type: MusicAlbum
  date published: 2021-04-07
album: Epitáfio
  type: MusicAlbum
  date published: 2021-02-05
album: Pra Que Discutir com Madame
  type: MusicAlbum
  date published: 2021-01-22

A Banca do Distinto
type: MusicRecording
duration: PT2M32S
duration ms: 152338
explicit: false
by artist: Walker Lahmann
by artist: Elias Jó
by artist: Vando Lucena
in album: A Banca do Distinto
  type: MusicAlbum
  date published: 2021-11-20
popularity: 32
isrc code: BCWKW2100004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T09:59:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1864595340610912180a9cdbbe99cd79d761121ecfaa58bcf383784ef45a8191
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/BCWKW2100004
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 0x1864595340610912180a9cdbbe99cd79d761121ecfaa58bcf383784ef45a8191. 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/BCWKW2100004.
  date published: 2026-06-13T12:53:06Z
audio: A Banca do Distinto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 155.212
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.538
  additional property: Energy
    type: PropertyValue
    value: 0.367
  additional property: Speechiness
    type: PropertyValue
    value: 0.094
  additional property: Acousticness
    type: PropertyValue
    value: 0.77
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.543
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.781
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major