Pith Number

pith:7C3DWQN3

pith:2018:7C3DWQN3U6RT2NZIWE5XJ2KOT6

not attested not anchored not stored refs pending

Bidirectional Evaluation with Direct Manipulation

Mika\"el Mayer, Ravi Chugh, Viktor Kun\v{c}ak

arxiv:1809.04209 v2 · 2018-09-12 · 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{7C3DWQN3U6RT2NZIWE5XJ2KOT6}

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	2026-05-18T00:02:49.073707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8b63b41bba7a33d3728b13b74e94e9fa8e675430dd5c069a825c3280d385c7c

Aliases

arxiv: 1809.04209 · arxiv_version: 1809.04209v2 · doi: 10.48550/arxiv.1809.04209 · pith_short_12: 7C3DWQN3U6RT · pith_short_16: 7C3DWQN3U6RT2NZI · pith_short_8: 7C3DWQN3

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/7C3DWQN3U6RT2NZIWE5XJ2KOT6 \
  | 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: f8b63b41bba7a33d3728b13b74e94e9fa8e675430dd5c069a825c3280d385c7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74bf9458fed66780d096b70a615db252790f5ce24aa3b32acf27a543a63e5580",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-09-12T00:58:55Z",
    "title_canon_sha256": "cd8d91433863b7130d3942060c7b2566b154ccb0a1bdd066b8fdccbb4a742635"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04209",
    "kind": "arxiv",
    "version": 2
  }
}