Pith Number

pith:NQWW6OS3

pith:2015:NQWW6OS3YM4E6AOPL3CJMPKN5O

not attested not anchored not stored refs pending

Automatic Reasoning on Recursive Data-Structures with Sharing

Duc-Hiep Chu, Joxan Jaffar

arxiv:1511.07267 v3 · 2015-11-23 · 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{NQWW6OS3YM4E6AOPL3CJMPKN5O}

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	2026-05-18T00:30:33.119543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c2d6f3a5bc3384f01cf5ec4963d4deb800328adcdebd2143e7d82dcae235308

Aliases

arxiv: 1511.07267 · arxiv_version: 1511.07267v3 · doi: 10.48550/arxiv.1511.07267 · pith_short_12: NQWW6OS3YM4E · pith_short_16: NQWW6OS3YM4E6AOP · pith_short_8: NQWW6OS3

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/NQWW6OS3YM4E6AOPL3CJMPKN5O \
  | 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: 6c2d6f3a5bc3384f01cf5ec4963d4deb800328adcdebd2143e7d82dcae235308

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e6de21924d38be0f2cab878f21981e0341bd72ef3c42e39fe2d05c84ca8728d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-11-23T15:18:19Z",
    "title_canon_sha256": "9903e8f9cb1c8681bc1fa03a07accbcd504d5fdf2e865623de19a3670bd6ca6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.07267",
    "kind": "arxiv",
    "version": 3
  }
}