Pith Number

pith:UJHJW6H2

pith:2018:UJHJW6H26IVNOGRMGMLO374ZM7

not attested not anchored not stored refs pending

Verifying C11 Programs Operationally

Brijesh Dongol, Heike Wehrheim, John Derrick, Simon Doherty

arxiv:1811.09143 v1 · 2018-11-22 · cs.PL · cs.DC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UJHJW6H26IVNOGRMGMLO374ZM7}

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	2026-05-18T00:00:06.928027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a24e9b78faf22ad71a2c3316edff9967e35fa5bd42d5e34197b9cc09607fb231

Aliases

arxiv: 1811.09143 · arxiv_version: 1811.09143v1 · doi: 10.48550/arxiv.1811.09143 · pith_short_12: UJHJW6H26IVN · pith_short_16: UJHJW6H26IVNOGRM · pith_short_8: UJHJW6H2

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/UJHJW6H26IVNOGRMGMLO374ZM7 \
  | 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: a24e9b78faf22ad71a2c3316edff9967e35fa5bd42d5e34197b9cc09607fb231

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ed7db3a8c0163ab73ea0f5cd49f1f937dd659050eebce34ce165394dc39fd7d",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-11-22T12:47:18Z",
    "title_canon_sha256": "af4589d09853e91a91c61c4f4e08d29c8744b738ea4de00fbc964552cbdfd1ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09143",
    "kind": "arxiv",
    "version": 1
  }
}