Pith Number

pith:YGXXJ7NC

pith:2018:YGXXJ7NC5TF6NHC4PJB7ZK24HR

not attested not anchored not stored refs pending

Runtime verification in Erlang by using contracts

Julio Mari\~no, Lars-{\AA}ke Fredlund, Salvador Tamarit, Sergio P\'erez

arxiv:1808.07937 v3 · 2018-08-23 · 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{YGXXJ7NC5TF6NHC4PJB7ZK24HR}

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	2026-05-17T23:54:43.550010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1af74fda2eccbe69c5c7a43fcab5c3c6408ea45eca7e09f4aa96f387ba45179

Aliases

arxiv: 1808.07937 · arxiv_version: 1808.07937v3 · doi: 10.48550/arxiv.1808.07937 · pith_short_12: YGXXJ7NC5TF6 · pith_short_16: YGXXJ7NC5TF6NHC4 · pith_short_8: YGXXJ7NC

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/YGXXJ7NC5TF6NHC4PJB7ZK24HR \
  | 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: c1af74fda2eccbe69c5c7a43fcab5c3c6408ea45eca7e09f4aa96f387ba45179

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "609e6ec752ddbaadcce42273f5bbc479c7287ddb87ad619ec475249c3b8347ab",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-08-23T20:31:57Z",
    "title_canon_sha256": "db98cdf2011e13498ca44026276fa5c0ae488dbff3cb076217f9618dfb713a7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07937",
    "kind": "arxiv",
    "version": 3
  }
}