Pith Number

pith:QLULELBD

pith:2017:QLULELBDP73AE3D6ROF64AICZP

not attested not anchored not stored refs pending

Metric Reasoning About $\lambda$-Terms: The General Case (Long Version)

Rapha\"elle Crubill\'e, Ugo Dal Lago

arxiv:1701.05521 v1 · 2017-01-19 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLULELBDP73AE3D6ROF64AICZP}

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

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	2026-05-18T00:52:29.637170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82e8b22c237ff6026c7e8b8bee0102cbc5126bb58f12dbde878c42e85c5fd4ee

Aliases

arxiv: 1701.05521 · arxiv_version: 1701.05521v1 · doi: 10.48550/arxiv.1701.05521 · pith_short_12: QLULELBDP73A · pith_short_16: QLULELBDP73AE3D6 · pith_short_8: QLULELBD

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/QLULELBDP73AE3D6ROF64AICZP \
  | 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: 82e8b22c237ff6026c7e8b8bee0102cbc5126bb58f12dbde878c42e85c5fd4ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d451919615f28b4dad9f4d5f65479200ed27d71bbb02ced1e8ebafcd10b0e617",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-01-19T17:38:51Z",
    "title_canon_sha256": "d72b356304484c0b81b172c6f3a8f21f28ce7ee02951e6c0ae831cbdc63cf7a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05521",
    "kind": "arxiv",
    "version": 1
  }
}