Evelina Chao
type: MusicGroup
description: Evelina Chao (born 1949) is an American violinist of Chinese descent. Early life Chao was born in Chicago, Illinois to Edward C. T. Chao and Vera Lin. From 1968 to 1969 she attended Oberlin College,
popularity: 7
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xc8500e9ca15f1fa3e2caf4f896c7290691d5b5fbc045f5486ff0cebb7814b64c
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a032aa54-9b65-44f6-8a1e-81549f0b7cba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a032aa54-9b65-44f6-8a1e-81549f0b7cba.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-20T07:04:44Z
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8500e9ca15f1fa3e2caf4f896c7290691d5b5fbc045f5486ff0cebb7814b64c. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a032aa54-9b65-44f6-8a1e-81549f0b7cba.json and https://artists.proofprofile.net/proofs/artist/a032aa54-9b65-44f6-8a1e-81549f0b7cba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
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track: Take and Eat
  type: MusicRecording
  duration: PT4M11S
  duration ms: 251040
  explicit: false
  by artist: Robin Medrud
  by artist: Michael Joncas
  by artist: Patrice Pakiz
  by artist: Sandy Homb
  by artist: Bruce Allard
  by artist: Evelina Chao
  by artist: Marcia Peck
  by artist: Marty Haugen
  by artist: Dave Michel
  in album: With Gratitude
    type: MusicAlbum
    date published: 2017-06-16
  popularity: 15
  isrc code: US7851600191
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7851600191
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0x9ede72b6cd70e3aba678a1d15f843de3548c97c74bd9f6e127ed94666f95443d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US7851600191.
    date published: 2026-07-02T03:30:09Z
  audio: Take and Eat
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
      type: PropertyValue
      value: 0.221
    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.145
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.182
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.738
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Shepherd Me, O God (Psalm 23)
  type: MusicRecording
  duration: PT4M33S
  duration ms: 273040
  explicit: false
  by artist: Robin Medrud
  by artist: Michael Joncas
  by artist: Marty Haugen
  by artist: Bruce Allard
  by artist: Frank Lee
  by artist: Evelina Chao
  by artist: Marcia Peck
  in album: With Gratitude
    type: MusicAlbum
    date published: 2017-06-16
  popularity: 8
  isrc code: US7851600183
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  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    value: 2026-06-22T20:43:29+00:00
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    value: https://explorer.copyrightchains.com/tx/0x18541c5636ed7bb510d3c768cf1bb631b4fc26bcb679fac643a31a2d2235bd3a
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7851600183
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x18541c5636ed7bb510d3c768cf1bb631b4fc26bcb679fac643a31a2d2235bd3a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US7851600183.
    date published: 2026-07-02T03:55:08Z
  audio: Shepherd Me, O God (Psalm 23)
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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      value: 5
    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
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      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.238
    additional property: Energy
      type: PropertyValue
      value: 0.297
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    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

Acousticness
type: PropertyValue
value: 0.857

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.261

Valence (Positivity)
type: PropertyValue
value: 0.307

Loudness (dB)
type: PropertyValue
value: -14.69

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor