David Coda
type: MusicGroup
popularity: 15
followers: 85
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  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
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  date published: 2026-06-15T18:10:31Z
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album: Care Home Blues
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  date published: 2022-09-25
album: Don't You Just ...
  type: MusicAlbum
  date published: 2022-09-27
album: The First Snow Has Fallen
  type: MusicAlbum
  date published: 2022-12-14
album: Springtime
  type: MusicAlbum
  date published: 2022-12-18
album: Springtime (Instrumental)
  type: MusicAlbum
  date published: 2022-12-19
album: Wandering ... Wondering ... Why? (Instrumental)
  type: MusicAlbum
  date published: 2022-12-20
album: Wandering ... Wondering ... Why?
  type: MusicAlbum
  date published: 2022-12-30
album: We Love Driving In Our Little Car
  type: MusicAlbum
  date published: 2023-01-03
album: Winter Wood
  type: MusicAlbum
  date published: 2023-12-29
album: Autumn (Nature's Lullaby)
  type: MusicAlbum
  date published: 2024-09-21
album: The Alchemist
  type: MusicAlbum
  date published: 2024-09-21
album: Summer (The Promenade Waltz)
  type: MusicAlbum
  date published: 2024-09-22
album: The Care Home Blues
  type: MusicAlbum
  date published: 2024-10-07
album: (Oooh! I Love My) Rockin' Chair
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  date published: 2024-10-07
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    additional property: OTSVerifyInstructions
      type: PropertyValue
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-04T02:06:47Z
    audio: (Oooh! I Love My) Rockin' Chair
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      additional property: Valence (Positivity)
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album: Songs From The Shed
  type: MusicAlbum
  date published: 2024-10-10
album: Rock n Roll Christmas 2024
  type: MusicAlbum
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album: Never Lookin' Back Again (Radio Edit)
  type: MusicAlbum
  date published: 2024-11-03
album: Oppostites Attract (Demo)
  type: MusicAlbum
  date published: 2024-11-04
album: She's My Angel [The Dormouse Song) (Demo]
  type: MusicAlbum
  date published: 2024-11-04
album: Family (Demo Remastered)
  type: MusicAlbum
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album: Family (Demo)
  type: MusicAlbum
  date published: 2024-12-07
album: The Photograph (Demo)
  type: MusicAlbum
  date published: 2024-12-09
album: The Alchemist (Demo)
  type: MusicAlbum
  date published: 2024-12-10
album: Spring's Lullaby
  type: MusicAlbum
  date published: 2025-01-07
album: You're Always Welcome At The Library
  type: MusicAlbum
  date published: 2025-02-17
album: The 12 Bar Blues
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album: One Minute, Every Day, Valentine (Demo)
album: We Are Ukraine (Part I)
album: Ain't Got No Shoes (Ain't Got No Blues)
album: Happy Birthday! Happy Birthday!
album: 12 Bar Blues (LIVE)
album: CODA Overture

The 12 Bar Blues
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by artist: David Coda
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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 0x6b257effbf92049fc95ceaf28d1072fffbe59afdc5524672116fb5f210cb44e0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFN2461695.
  date published: 2026-07-15T12:03:04Z
audio: The 12 Bar Blues
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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One Minute, Every Day, Valentine (Demo)
type: MusicAlbum
date published: 2025-02-20

We Are Ukraine (Part I)
type: MusicAlbum
date published: 2025-03-14
track: We Are Ukraine (Part I)
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
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  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 0x622f4a6cc52459f6b8f593184a69f810e0a89a7645b3807fa2ad252a97b327e8. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q2512490.
    date published: 2026-07-12T22:25:04Z
  audio: We Are Ukraine (Part I)
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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Ain't Got No Shoes (Ain't Got No Blues)
type: MusicAlbum
date published: 2025-05-22

Happy Birthday! Happy Birthday!
type: MusicAlbum
date published: 2025-06-14

12 Bar Blues (LIVE)
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date published: 2025-06-18
track: 12 Bar Blues - LIVE
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  additional property: OTSVerifyInstructions
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    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 0xe8a8a6f794f235188248adff1d18f57207cc25db50e88bb4b818e2597bf9601f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZTB62579104.
    date published: 2026-07-16T22:37:47Z
  audio: 12 Bar Blues - LIVE
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CODA Overture
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date published: 2025-06-30