Pith Number

pith:PHKECJU2

pith:2018:PHKECJU2AC5O2IQNQEE3BIJP5T

not attested not anchored not stored refs pending

A wide-spectrum language for verification of programs on weak memory models

Graeme Smith, Robert J. Colvin

arxiv:1802.04406 v1 · 2018-02-13 · cs.PL · 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{PHKECJU2AC5O2IQNQEE3BIJP5T}

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	2026-05-17T23:59:22.945442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79d441269a00baed220d8109b0a12fece08be0b7497ac39822b81d04ab87090a

Aliases

arxiv: 1802.04406 · arxiv_version: 1802.04406v1 · doi: 10.48550/arxiv.1802.04406 · pith_short_12: PHKECJU2AC5O · pith_short_16: PHKECJU2AC5O2IQN · pith_short_8: PHKECJU2

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/PHKECJU2AC5O2IQNQEE3BIJP5T \
  | 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: 79d441269a00baed220d8109b0a12fece08be0b7497ac39822b81d04ab87090a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3df4cc2fb19e3a8b0e9eaeb2d05a77ad895ba5c63d9c218044a0aabcd8eac0d6",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-02-13T00:23:16Z",
    "title_canon_sha256": "d80880f56c3a4e47b6dbb6e0240f0782d62a248d92d4adcf0a4d8a545bf968da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04406",
    "kind": "arxiv",
    "version": 1
  }
}