Pith Number

pith:MHUUSN2U

pith:2018:MHUUSN2U75Q6NTTP256FEUSWQ7

not attested not anchored not stored refs pending

A Theory of Encodings and Expressiveness

Rob van Glabbeek

arxiv:1805.10415 v1 · 2018-05-26 · 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{MHUUSN2U75Q6NTTP256FEUSWQ7}

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	2026-05-18T00:14:52.568625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61e9493754ff61e6ce6fd77c52525687f0f1df6f49ee18592d292de3e1c8d654

Aliases

arxiv: 1805.10415 · arxiv_version: 1805.10415v1 · doi: 10.48550/arxiv.1805.10415 · pith_short_12: MHUUSN2U75Q6 · pith_short_16: MHUUSN2U75Q6NTTP · pith_short_8: MHUUSN2U

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/MHUUSN2U75Q6NTTP256FEUSWQ7 \
  | 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: 61e9493754ff61e6ce6fd77c52525687f0f1df6f49ee18592d292de3e1c8d654

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1242fb9157741de7ce9d6c68c021a317ef685cb68c4028b16e5da7714d75629",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-05-26T02:45:02Z",
    "title_canon_sha256": "4dcd368ee1b06ef8d82f9f9dc0466091bdf56ef42402d102db2e5d82f4bce1e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.10415",
    "kind": "arxiv",
    "version": 1
  }
}