Sylvester Weaver
type: MusicGroup
genre: blues
genre: classic blues
genre: country blues
genre: ragtime
popularity: 14
followers: 3293
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953701
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953701
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75b7ba5b-b739-4968-a0df-bb9e512bc714.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75b7ba5b-b739-4968-a0df-bb9e512bc714.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/75b7ba5b-b739-4968-a0df-bb9e512bc714
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:16:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e1e8e771cb84d50b59ea2f8c20ff737a545870a2714c9674d48451e918e50e3","name":"Sylvester Weaver","registered_at":"2026-06-14T16:50:50Z","symbol":"NIM0515633","token_address":"0x1fd1342ab8f05e0f9436076d99c96e1fcbb86202","type":"artist","uuid":"75b7ba5b-b739-4968-a0df-bb9e512bc714"}
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 0x7e1e8e771cb84d50b59ea2f8c20ff737a545870a2714c9674d48451e918e50e3. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75b7ba5b-b739-4968-a0df-bb9e512bc714.json and https://artists.proofprofile.net/proofs/artist/75b7ba5b-b739-4968-a0df-bb9e512bc714.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T22:16:40Z
  text: {"copyright_id":"0x7e1e8e771cb84d50b59ea2f8c20ff737a545870a2714c9674d48451e918e50e3","name":"Sylvester Weaver","registered_at":"2026-06-14T16:50:50Z","symbol":"NIM0515633","token_address":"0x1fd1342ab8f05e0f9436076d99c96e1fcbb86202","type":"artist","uuid":"75b7ba5b-b739-4968-a0df-bb9e512bc714"}
album: Guitar Rag / Guitar Blues
  type: MusicAlbum
  date published: 1923-01-12
album: True Love Blues
  type: MusicAlbum
  date published: 1923-12-23
  track: Bottleneck Blues
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176560
    explicit: false
    by artist: Sylvester Weaver
    in album: True Love Blues
      type: MusicAlbum
      date published: 1923-12-23
    genre: blues
    genre: classic blues
    genre: country blues
    genre: ragtime
    isrc code: DEXO52475546
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T11:41:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf7369b86fbb8dac9494db84f030915c3fc6ae7f868966d4c5c712540140c06c8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 958153
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958153
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO52475546
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T12:03:04Z
    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 0xf7369b86fbb8dac9494db84f030915c3fc6ae7f868966d4c5c712540140c06c8. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO52475546 — a six-check JSON result.
      date published: 2026-07-15T12:03:04Z
    audio: Bottleneck Blues
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.229
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.561
      additional property: Energy
        type: PropertyValue
        value: 0.293
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.918
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.928
      additional property: Liveness
        type: PropertyValue
        value: 0.074
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.585
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.059
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Presenting Sylvester Weaver
  type: MusicAlbum
  date published: 1924-01-27
  track: Guitar Rag
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186293
    explicit: false
    by artist: Sylvester Weaver
    in album: Presenting Sylvester Weaver
      type: MusicAlbum
      date published: 1924-01-27
    genre: blues
    genre: classic blues
    genre: country blues
    genre: ragtime
    isrc code: DEUE12334590
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T23:37:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x378bf2104ca391c10e3e03ac77cee9eba91976eb1de660a544cd1cf6193f39f2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958942
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958942
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12334590
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:24:07Z
    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 0x378bf2104ca391c10e3e03ac77cee9eba91976eb1de660a544cd1cf6193f39f2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12334590 — a six-check JSON result.
      date published: 2026-07-21T00:24:07Z
    audio: Guitar Rag
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 108.01
      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: 0.466
      additional property: Energy
        type: PropertyValue
        value: 0.291
      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: Sylvester Weaver Vol. 2 (1927)
album: 1920s Blues (The Roots of Robert Johnson)
album: Alligator Blues
album: Top 43 Classics - The Very Best of Sylvester Weaver

Speechiness
type: PropertyValue
value: 0.031

Acousticness
type: PropertyValue
value: 0.952

Instrumentalness
type: PropertyValue
value: 0.808

Liveness
type: PropertyValue
value: 0.11

Valence (Positivity)
type: PropertyValue
value: 0.394

Loudness (dB)
type: PropertyValue
value: -12.909

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Sylvester Weaver Vol. 2 (1927)
type: MusicAlbum
date published: 1992

1920s Blues (The Roots of Robert Johnson)
type: MusicAlbum
date published: 2011-11-01

Alligator Blues
type: MusicAlbum
date published: 2019-03-30

Alligator Blues
type: MusicAlbum
date published: 2019-03-30

Top 43 Classics - The Very Best of Sylvester Weaver
type: MusicAlbum
date published: 2020-08-10