Pith Number

pith:SPCC62B3

pith:2013:SPCC62B3SNXYEK6QIAOZQYZDJD

not attested not anchored not stored refs pending

Step-Indexed Relational Reasoning for Countable Nondeterminism

Ale\v{s} Bizjak (Aarhus University, Denmark), Jan Schwinghammer (Saarland University), Lars Birkedal (IT University of Copenhagen)

arxiv:1310.2031 v2 · 2013-10-08 · 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{SPCC62B3SNXYEK6QIAOZQYZDJD}

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	2026-05-18T01:37:37.762660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93c42f683b936f822bd0401d98632348eb7745b75868d65d93856533d63d74c7

Aliases

arxiv: 1310.2031 · arxiv_version: 1310.2031v2 · doi: 10.48550/arxiv.1310.2031 · pith_short_12: SPCC62B3SNXY · pith_short_16: SPCC62B3SNXYEK6Q · pith_short_8: SPCC62B3

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/SPCC62B3SNXYEK6QIAOZQYZDJD \
  | 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: 93c42f683b936f822bd0401d98632348eb7745b75868d65d93856533d63d74c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebe2a09486219f560a063e0692b3f7e42158ee32804d49c279add60069f773dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-10-08T08:14:54Z",
    "title_canon_sha256": "a6e5eef30595e76e26c6908d4907f6c0a9afdb5fa090d3dde67550e1c343624a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2031",
    "kind": "arxiv",
    "version": 2
  }
}