Pith Number

pith:2VNDITTT

pith:2012:2VNDITTT5VN7ACFU27T7XEOHGG

not attested not anchored not stored refs pending

A Calculus for Generating Ground Explanations (Technical Report)

Mnacho Echenim, Nicolas Peltier

arxiv:1201.5954 v1 · 2012-01-28 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2VNDITTT5VN7ACFU27T7XEOHGG}

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	2026-05-18T02:21:18.319412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d55a344e73ed5bf008b4d7e7fb91c73182db007bedefd5b6e3c50c6c584dce88

Aliases

arxiv: 1201.5954 · arxiv_version: 1201.5954v1 · doi: 10.48550/arxiv.1201.5954 · pith_short_12: 2VNDITTT5VN7 · pith_short_16: 2VNDITTT5VN7ACFU · pith_short_8: 2VNDITTT

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/2VNDITTT5VN7ACFU27T7XEOHGG \
  | 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: d55a344e73ed5bf008b4d7e7fb91c73182db007bedefd5b6e3c50c6c584dce88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdc7aad2148ea332f7324c12a5cf18cacfc018f609ebdbc5bb91a0f671974ec4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-01-28T12:35:04Z",
    "title_canon_sha256": "204c02d4cc98fccfff4ecda016e03ef4648c7071493302ad1fc3ab830da5eb42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5954",
    "kind": "arxiv",
    "version": 1
  }
}