Pith Number

pith:U4G2A3F3

pith:2025:U4G2A3F3RMOMUUF7EWI4ZTVGBF

not attested not anchored not stored refs pending

Digitalizing Uncertain Information

Andreas Cola, Andrew Mitchell, Chris Partridge

arxiv:2507.21173 v1 · 2025-07-26 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4G2A3F3RMOMUUF7EWI4ZTVGBF}

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	2026-07-05T11:44:32.628047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a70da06cbb8b1cca50bf2591cccea60979bf9094cb7af231a1bbde44a79ac748

Aliases

arxiv: 2507.21173 · arxiv_version: 2507.21173v1 · doi: 10.48550/arxiv.2507.21173 · pith_short_12: U4G2A3F3RMOM · pith_short_16: U4G2A3F3RMOMUUF7 · pith_short_8: U4G2A3F3

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/U4G2A3F3RMOMUUF7EWI4ZTVGBF \
  | 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: a70da06cbb8b1cca50bf2591cccea60979bf9094cb7af231a1bbde44a79ac748

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "768e40899724d87f9bce4165ba4cd10d4bd0b188d32026465960984a42f083c4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2025-07-26T01:32:23Z",
    "title_canon_sha256": "609e6dd8f230af67c99f62d6c84e1d2043c1070586bb5e7a9f92acf724b0e62b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21173",
    "kind": "arxiv",
    "version": 1
  }
}