Pith Number

pith:7V6NAOCV

pith:2009:7V6NAOCVLLXJAXPB3EPWBPQBAE

not attested not anchored not stored refs pending

Infinitary Combinatory Reduction Systems: Confluence

Jakob Grue Simonsen, Jeroen Ketema

arxiv:0910.4081 v2 · 2009-10-21 · cs.LO · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7V6NAOCVLLXJAXPB3EPWBPQBAE}

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	2026-05-18T01:37:40.265561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd7cd038555aee905de1d91f60be010125726111188c160542d1877b1250fffa

Aliases

arxiv: 0910.4081 · arxiv_version: 0910.4081v2 · doi: 10.48550/arxiv.0910.4081 · pith_short_12: 7V6NAOCVLLXJ · pith_short_16: 7V6NAOCVLLXJAXPB · pith_short_8: 7V6NAOCV

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/7V6NAOCVLLXJAXPB3EPWBPQBAE \
  | 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: fd7cd038555aee905de1d91f60be010125726111188c160542d1877b1250fffa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cc6ad943a2611c6900a31c0251c7430628515985e0c4f12223840c30988037b",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2009-10-21T13:15:22Z",
    "title_canon_sha256": "171c58412a33200ee83866118e40fc1f06801f9283d626c1fe770d930f1de30e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4081",
    "kind": "arxiv",
    "version": 2
  }
}