Pith Number

pith:3TSA2QDG

pith:2017:3TSA2QDGFO2MTYKQROMF7ZWVQS

not attested not anchored not stored refs pending

Spencer: Interactive Heap Analysis for the Masses

Stephan Brandauer, Tobias Wrigstad

arxiv:1703.05615 v2 · 2017-03-16 · 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{3TSA2QDGFO2MTYKQROMF7ZWVQS}

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	2026-05-18T00:47:33.231413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dce40d40662bb4c9e1508b985fe6d584925d4f9e1295bd1d7af1165212e9fa52

Aliases

arxiv: 1703.05615 · arxiv_version: 1703.05615v2 · doi: 10.48550/arxiv.1703.05615 · pith_short_12: 3TSA2QDGFO2M · pith_short_16: 3TSA2QDGFO2MTYKQ · pith_short_8: 3TSA2QDG

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/3TSA2QDGFO2MTYKQROMF7ZWVQS \
  | 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: dce40d40662bb4c9e1508b985fe6d584925d4f9e1295bd1d7af1165212e9fa52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b1858e69de9f3398b3107c8e3b5a579d88023dea46ef2f4b235397796f6c886",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-03-16T13:37:05Z",
    "title_canon_sha256": "b56c11147c7d1a040dc80d5f1bbdb55dc0f8630475cb2a3f8e5388c07e5f5781"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05615",
    "kind": "arxiv",
    "version": 2
  }
}