Pith Number

pith:57NKVK4R

pith:2022:57NKVK4RR5KXBJOFJMF2MH57IR

not attested not anchored not stored refs pending

From Books to Knowledge Graphs

Ernest Suyver, Giovanni Colavizza, Matteo Romanello, Natallia Kokash

arxiv:2204.10766 v3 · 2022-04-22 · cs.DL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{57NKVK4RR5KXBJOFJMF2MH57IR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T06:22:58.036675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efdaaaab918f5570a5c54b0ba61fbf444409e6e9d7aae1269c7cdc4e0a74a6de

Aliases

arxiv: 2204.10766 · arxiv_version: 2204.10766v3 · doi: 10.48550/arxiv.2204.10766 · pith_short_12: 57NKVK4RR5KX · pith_short_16: 57NKVK4RR5KXBJOF · pith_short_8: 57NKVK4R

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/57NKVK4RR5KXBJOFJMF2MH57IR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: efdaaaab918f5570a5c54b0ba61fbf444409e6e9d7aae1269c7cdc4e0a74a6de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "523752910d63b2ee473a194d995cc5872363af170f4afebaf1457739be78a5ce",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2022-04-22T15:33:06Z",
    "title_canon_sha256": "425b918202719acc9c92615c4a7ad6e7e9d58d3a9dde99c9f314884d8f36548e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.10766",
    "kind": "arxiv",
    "version": 3
  }
}