Pith Number

pith:U32LC3OB

pith:2021:U32LC3OBTUAUXKFB7S2264L4VF

not attested not anchored not stored refs pending

SteelCore: An Extensible Concurrent Separation Logic for Effectful Dependently Typed Programs

Aseem Rastogi, Aymeric Fromherz, Danel Ahman, Denis Merigoux, Guido Mart\'inez, Nikhil Swamy

arxiv:2111.15149 v1 · 2021-11-30 · 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{U32LC3OBTUAUXKFB7S2264L4VF}

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	2026-07-05T03:36:23.473418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6f4b16dc19d014ba8a1fcb5af717ca97598f4f6fda2a2c1a185d94b3a1f11a1

Aliases

arxiv: 2111.15149 · arxiv_version: 2111.15149v1 · doi: 10.48550/arxiv.2111.15149 · pith_short_12: U32LC3OBTUAU · pith_short_16: U32LC3OBTUAUXKFB · pith_short_8: U32LC3OB

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/U32LC3OBTUAUXKFB7S2264L4VF \
  | 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: a6f4b16dc19d014ba8a1fcb5af717ca97598f4f6fda2a2c1a185d94b3a1f11a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4754ad5f6e12c067c12eb4f52cd1e13d9a895f5239c7b798a95d8cc2f571d08",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2021-11-30T06:15:28Z",
    "title_canon_sha256": "f05bc458be0bf1dac44def5b3116f3b8ebc380ace6ecf15c6707b7f266eb88c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.15149",
    "kind": "arxiv",
    "version": 1
  }
}