Pith Number

pith:7LQ7E2B5

pith:2016:7LQ7E2B5LYTJ2GGFC3VU4JAXTO

not attested not anchored not stored refs pending

The While language

Ant\'onio Ravara, Cl\'audio Vasconcelos

arxiv:1603.08949 v2 · 2016-03-29 · 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{7LQ7E2B5LYTJ2GGFC3VU4JAXTO}

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	2026-05-18T01:17:16.797657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fae1f2683d5e269d18c516eb4e24179b811b926530557ce0cfa245419b7bb9d2

Aliases

arxiv: 1603.08949 · arxiv_version: 1603.08949v2 · doi: 10.48550/arxiv.1603.08949 · pith_short_12: 7LQ7E2B5LYTJ · pith_short_16: 7LQ7E2B5LYTJ2GGF · pith_short_8: 7LQ7E2B5

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/7LQ7E2B5LYTJ2GGFC3VU4JAXTO \
  | 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: fae1f2683d5e269d18c516eb4e24179b811b926530557ce0cfa245419b7bb9d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62e90f81a47f44007de3a9615e88c635ed5f54e155fd01bf44c2549da7b30705",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2016-03-29T20:30:27Z",
    "title_canon_sha256": "45d8047c3a9f705237901a1f7c680c902ab4eee3a20e0f7fa04ce1604a4804ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.08949",
    "kind": "arxiv",
    "version": 2
  }
}