Kol B'Seder
type: MusicGroup
description: Kol B'Seder is an American Jewish musical duo formed in 1972 by Rabbi Dan Freelander and Cantor Jeff Klepper. The group is recognized for their extensive contributions to contemporary Hebrew liturgica
popularity: 10
followers: 481
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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: 2026-06-20T05:07:36Z
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album: Songs for Growin': Jewish Music for Families
  type: MusicAlbum
  date published: 2002-05-01
album: Snapshots: The Best Of Kol B'seder, Vol. 1
  type: MusicAlbum
  date published: 2004-07-20
  track: Modeh Ani
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    duration: PT2M23S
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    by artist: Kol B'Seder
    in album: Snapshots: The Best Of Kol B'seder, Vol. 1
      type: MusicAlbum
      date published: 2004-07-20
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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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151a9ea1970ff0d2ba4b3ddc205b108e85b0f5aaa5d1e8dc76a327cf3467f7ee. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/USHM80780270.
      date published: 2026-07-19T08:50:34Z
    audio: Modeh Ani
      type: AudioObject
      additional property: Tempo (BPM)
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  track: Shalom Rav
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221386
    explicit: false
    by artist: Kol B'Seder
    in album: Snapshots: The Best Of Kol B'seder, Vol. 1
      type: MusicAlbum
      date published: 2004-07-20
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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
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      date published: 2026-07-15T16:25:08Z
    audio: Shalom Rav
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 96.335
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        value: 1
      additional property: Time Signature
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      additional property: Danceability
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      additional property: Energy
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
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album: We Are Partners
album: Snapshots, Vol. 3
album: Snapshots, Vol. 2

Valence (Positivity)
type: PropertyValue
value: 0.199

Loudness (dB)
type: PropertyValue
value: -17.645

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

We Are Partners
type: MusicAlbum
date published: 2024-07-01

Snapshots, Vol. 3
type: MusicAlbum
date published: 2024-07-01

Snapshots, Vol. 2
type: MusicAlbum
date published: 2024-07-01