Pith Number

pith:XA7NOMK7

pith:2015:XA7NOMK73BM5H7MT2BKZPH5F75

not attested not anchored not stored refs pending

Extending PPTL for Verifying Heap Evolution Properties

Cong Tian, Xu Lu, Zhenhua Duan

arxiv:1507.08426 v1 · 2015-07-30 · 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{XA7NOMK73BM5H7MT2BKZPH5F75}

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	2026-05-18T01:36:06.498590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b83ed7315fd859d3fd93d055979fa5ff56909ac8547a4585dcca1470c4e1bfde

Aliases

arxiv: 1507.08426 · arxiv_version: 1507.08426v1 · doi: 10.48550/arxiv.1507.08426 · pith_short_12: XA7NOMK73BM5 · pith_short_16: XA7NOMK73BM5H7MT · pith_short_8: XA7NOMK7

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/XA7NOMK73BM5H7MT2BKZPH5F75 \
  | 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: b83ed7315fd859d3fd93d055979fa5ff56909ac8547a4585dcca1470c4e1bfde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d1f1260dd09fa6620a726f39e5c10dab5eaeadef2d678d8c360e1cef5cf7b5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-07-30T09:12:07Z",
    "title_canon_sha256": "f682af7737d14206695d59ce5125ac596b57f1380f2e2ca772167528bde77974"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08426",
    "kind": "arxiv",
    "version": 1
  }
}