Rookie Card
type: MusicGroup
genre: math rock
genre: midwest emo
genre: screamo
description: A rookie card is a trading card that is the first to feature an athlete after that athlete has participated in the highest level of competition within their sport. Collectors may value these first app
popularity: 9
followers: 3012
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xc5310c9cb35820e2490928499234d485608307a0b00e5c42963e7a1d2a52955c
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/18a5acef-ce63-4b16-83b5-8e7915fbf569.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18a5acef-ce63-4b16-83b5-8e7915fbf569
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:03:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0xc5310c9cb35820e2490928499234d485608307a0b00e5c42963e7a1d2a52955c. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18a5acef-ce63-4b16-83b5-8e7915fbf569.json and https://artists.proofprofile.net/proofs/artist/18a5acef-ce63-4b16-83b5-8e7915fbf569.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T08:03:10Z
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album: Lonely Nights Are Best Spent In Good Company
  type: MusicAlbum
  date published: 2018-09-14
album: For Ryan
  type: MusicAlbum
  date published: 2020-01-13
  track: I'm the Earth, Bitches!
    type: MusicRecording
    duration: PT1M43S
    duration ms: 103652
    explicit: true
    by artist: Rookie Card
    in album: For Ryan
      type: MusicAlbum
      date published: 2020-01-13
    genre: math rock
    genre: midwest emo
    genre: screamo
    isrc code: QZK6J2084644
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2084644
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:13:26Z
    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 0xcb5b0d099c9c783a50bc9d062852c3398ae41bb54c28429efdaeda9bc07569ff. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6J2084644.
      date published: 2026-07-18T04:13:26Z
    audio: I'm the Earth, Bitches!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.212
      additional property: Musical Key
        type: PropertyValue
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      additional property: Mode (Major/Minor)
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        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.296
      additional property: Valence (Positivity)
        type: PropertyValue
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      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.628
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
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album: A House That Sat Silent & a Star Nearing the End of It's Life
  type: MusicAlbum
  date published: 2020-04-05
album: Fall Songs
  type: MusicAlbum
  date published: 2020-10-31
  track: Elvis Presley Is Dead As Shit
    type: MusicRecording
    duration: PT2M35S
    duration ms: 155613
    explicit: false
    by artist: Rookie Card
    in album: Fall Songs
      type: MusicAlbum
      date published: 2020-10-31
    genre: math rock
    genre: midwest emo
    genre: screamo
    isrc code: QZNWQ2027417
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    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: CopyrightRegisteredAt
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2027417
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T08:35:51Z
    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 0xb008a0ce90583fe3be94883d3f2f92d4a869186c797a08608d9e7a92f90a045a. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:35:51Z), 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/QZNWQ2027417.
      date published: 2026-07-20T08:35:51Z
    audio: Elvis Presley Is Dead As Shit
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.288
      additional property: Energy
      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: Spirits (Agnar Remix)
album: Ismay
album: The North
album: We Chose to Go to the Moon

Energy
type: PropertyValue
value: 0.884

Speechiness
type: PropertyValue
value: 0.134

Acousticness
type: PropertyValue
value: 0.625

Instrumentalness
type: PropertyValue
value: 0.406

Liveness
type: PropertyValue
value: 0.266

Valence (Positivity)
type: PropertyValue
value: 0.396

Loudness (dB)
type: PropertyValue
value: -7.083

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Spirits (Agnar Remix)
type: MusicAlbum
date published: 2020-12-12

Ismay
type: MusicAlbum
date published: 2021-03-05

The North
type: MusicAlbum
date published: 2021-10-25

We Chose to Go to the Moon
type: MusicAlbum
date published: 2022-02-10