Pith Number

pith:DPQ27MG6

pith:2019:DPQ27MG6YUUNS35FGZE42OQ27Q

not attested not anchored not stored refs pending

Interaction with Formal Mathematical Documents in Isabelle/PIDE

Makarius Wenzel

arxiv:1905.01735 v1 · 2019-05-05 · 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{DPQ27MG6YUUNS35FGZE42OQ27Q}

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	2026-05-17T23:46:57.597013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1be1afb0dec528d96fa53649cd3a1afc06c40413a8343338d98199a0b5555b85

Aliases

arxiv: 1905.01735 · arxiv_version: 1905.01735v1 · doi: 10.48550/arxiv.1905.01735 · pith_short_12: DPQ27MG6YUUN · pith_short_16: DPQ27MG6YUUNS35F · pith_short_8: DPQ27MG6

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/DPQ27MG6YUUNS35FGZE42OQ27Q \
  | 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: 1be1afb0dec528d96fa53649cd3a1afc06c40413a8343338d98199a0b5555b85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be778699c6e2bcaa1895e24a80286d62c898c9c8f6409a88ff205ed5e92c0380",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-05-05T19:34:13Z",
    "title_canon_sha256": "8c1c9c0cd15a49b700173b1013cc51c3d7eb27c33488410f60c5efb6c4588fc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01735",
    "kind": "arxiv",
    "version": 1
  }
}