Pith Number

pith:XBQODDHG

pith:2006:XBQODDHG54F2N76LYDTQ747TFF

not attested not anchored not stored refs pending

Semantics of Separation-Logic Typing and Higher-order Frame Rules for<br> Algol-like Languages

Hongseok Yang, Lars Birkedal, Noah Torp-Smith

arxiv:cs/0610081 v2 · 2006-10-13 · 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{XBQODDHG54F2N76LYDTQ747TFF}

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	2026-05-18T00:53:03.301783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b860e18ce6ef0ba6ffcbc0e70ff3f32958214997c631251aa7514c875782d3ab

Aliases

arxiv: cs/0610081 · arxiv_version: cs/0610081v2 · doi: 10.48550/arxiv.cs/0610081 · pith_short_12: XBQODDHG54F2 · pith_short_16: XBQODDHG54F2N76L · pith_short_8: XBQODDHG

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/XBQODDHG54F2N76LYDTQ747TFF \
  | 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: b860e18ce6ef0ba6ffcbc0e70ff3f32958214997c631251aa7514c875782d3ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7fa675491affbe24643e248f117d5199a69a468e4ecf94ec1614973575e90d9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.LO",
    "submitted_at": "2006-10-13T08:21:31Z",
    "title_canon_sha256": "1d7e6aa50f45f0de8aacf98ead65877734bc8673430fd2313c37fbc040db2cc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0610081",
    "kind": "arxiv",
    "version": 2
  }
}