Alexander Laskar
type: MusicGroup
popularity: 7
followers: 567
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5815d1bce108eef4d5895f7720ab4991311fcc8c41f112ef971823ac0d63df0d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/934f0d67-98dc-4b01-b4ca-7c19c33f893a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/934f0d67-98dc-4b01-b4ca-7c19c33f893a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/934f0d67-98dc-4b01-b4ca-7c19c33f893a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5815d1bce108eef4d5895f7720ab4991311fcc8c41f112ef971823ac0d63df0d","name":"Alexander Laskar","registered_at":"2026-06-17T17:03:09Z","symbol":"NIM1461063","token_address":"0xa19aa98153c75cc891678e8ee87b0fc652d543bc","type":"artist","uuid":"934f0d67-98dc-4b01-b4ca-7c19c33f893a"}
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 0x5815d1bce108eef4d5895f7720ab4991311fcc8c41f112ef971823ac0d63df0d. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/934f0d67-98dc-4b01-b4ca-7c19c33f893a.json and https://artists.proofprofile.net/proofs/artist/934f0d67-98dc-4b01-b4ca-7c19c33f893a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x5815d1bce108eef4d5895f7720ab4991311fcc8c41f112ef971823ac0d63df0d","name":"Alexander Laskar","registered_at":"2026-06-17T17:03:09Z","symbol":"NIM1461063","token_address":"0xa19aa98153c75cc891678e8ee87b0fc652d543bc","type":"artist","uuid":"934f0d67-98dc-4b01-b4ca-7c19c33f893a"}
album: The Real Slim Shady
  type: MusicAlbum
  date published: 2000
album: Mockingbird
  type: MusicAlbum
  date published: 2005
  track: Mockingbird
    type: MusicRecording
    duration: PT4M1S
    duration ms: 241116
    explicit: true
    by artist: Alexander Laskar
    in album: Mockingbird
      type: MusicAlbum
      date published: 2005
    isrc code: GX38U2361244
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T04:12:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x76a5a08bd9236e86148cb199e64b4e3a9d6b216a38b90414aad6b92edf74951e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958544
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX38U2361244
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a5a08bd9236e86148cb199e64b4e3a9d6b216a38b90414aad6b92edf74951e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GX38U2361244.
      date published: 2026-07-18T12:14:37Z
    audio: Mockingbird
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.598
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.794
      additional property: Energy
        type: PropertyValue
        value: 0.666
      additional property: Speechiness
        type: PropertyValue
        value: 0.111
      additional property: Acousticness
        type: PropertyValue
        value: 0.323
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.268
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.819
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.676
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Not Afraid (Spanish Version)
  type: MusicAlbum
  date published: 2010
album: Astronaut in the Ocean (Cover en español)
  type: MusicAlbum
  date published: 2021-09-16
album: Astronaut in the Ocean
  type: MusicAlbum
  date published: 2021-10-16
album: Whole Lotta Money (en Español)
  type: MusicAlbum
  date published: 2021-10-22
album: Industry Baby
  type: MusicAlbum
  date published: 2021-11-21
album: Moment 4 Life (en español)
  type: MusicAlbum
  date published: 2021-11-23
album: Oh My Gwad
  type: MusicAlbum
  date published: 2021-12-21
album: High School (en Español)
  type: MusicAlbum
  date published: 2022-01-28
album: Love The Way You Lie
  type: MusicAlbum
  date published: 2022-02-13
album: Do We Have A Problem?
  type: MusicAlbum
  date published: 2022-02-24
album: First Class
  type: MusicAlbum
  date published: 2022-06-29
album: Super Freaky Girl
  type: MusicAlbum
  date published: 2022-09-23
album: Till I Collapse
  type: MusicAlbum
  date published: 2022-11-26
album: Mockingbird
  type: MusicAlbum
  date published: 2023-02-06
  track: Mockingbird
    type: MusicRecording
    duration: PT2M7S
    duration ms: 127700
    explicit: false
    by artist: Alexander Laskar
    in album: Mockingbird
      type: MusicAlbum
      date published: 2023-02-06
    isrc code: GX89G2335466
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:59:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7399dbfc19ff6078e4e6eaf25f02b815e31cf85ad47892167bb31f955fc5a822
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958716
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958716
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX89G2335466
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T10:15:55Z
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Mockingbird
album: Candy Shop
album: Lose Yourself

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7399dbfc19ff6078e4e6eaf25f02b815e31cf85ad47892167bb31f955fc5a822. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GX89G2335466.
date published: 2026-07-19T10:15:55Z

Mockingbird
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 169.422
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.733
additional property: Energy
  type: PropertyValue
  value: 0.676
additional property: Speechiness
  type: PropertyValue
  value: 0.12
additional property: Acousticness
  type: PropertyValue
  value: 0.388
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.198
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.873
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.616
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Minor

Candy Shop
type: MusicAlbum
date published: 2023-07-16

Lose Yourself
type: MusicAlbum
date published: 2023-08-02