Pith Number

pith:EGFKSNAC

pith:2015:EGFKSNACBDSYZOMAVSD3VPIX2M

not attested not anchored not stored refs pending

The Next 700 Challenge Problems for Reasoning with Higher-Order Abstract Syntax Representations: Part 1-A Common Infrastructure for Benchmarks

Alberto Momigliano, Amy P. Felty, Brigitte Pientka

arxiv:1503.06095 v1 · 2015-03-20 · 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{EGFKSNACBDSYZOMAVSD3VPIX2M}

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	2026-05-18T02:20:48.669489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

218aa9340208e58cb980ac87babd17d3354dfb5f88d45e570ba5d56e7ca35b37

Aliases

arxiv: 1503.06095 · arxiv_version: 1503.06095v1 · doi: 10.48550/arxiv.1503.06095 · pith_short_12: EGFKSNACBDSY · pith_short_16: EGFKSNACBDSYZOMA · pith_short_8: EGFKSNAC

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/EGFKSNACBDSYZOMAVSD3VPIX2M \
  | 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: 218aa9340208e58cb980ac87babd17d3354dfb5f88d45e570ba5d56e7ca35b37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56a0f22cead1d94f1011e63e47dd646a7778f3695b78023f19e6650004806798",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-03-20T14:54:15Z",
    "title_canon_sha256": "51b7c72de9b50c72b87702a9b5e462b822d0b7bb4b4850c05c1c067dcb29197d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06095",
    "kind": "arxiv",
    "version": 1
  }
}