Pith Number

pith:P6VUS7TU

pith:2017:P6VUS7TU3NAWM66HNFEKGPNA6W

not attested not anchored not stored refs pending

Categorical Liveness Checking by Corecursive Algebras

Ichiro Hasuo, Masaki Hara, Natsuki Urabe

arxiv:1704.04872 v1 · 2017-04-17 · 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{P6VUS7TU3NAWM66HNFEKGPNA6W}

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	2026-05-18T00:46:17.552457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fab497e74db41667bc76948a33da0f58cd15c0278c50ca2379837ff1d3ac70b

Aliases

arxiv: 1704.04872 · arxiv_version: 1704.04872v1 · doi: 10.48550/arxiv.1704.04872 · pith_short_12: P6VUS7TU3NAW · pith_short_16: P6VUS7TU3NAWM66H · pith_short_8: P6VUS7TU

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/P6VUS7TU3NAWM66HNFEKGPNA6W \
  | 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: 7fab497e74db41667bc76948a33da0f58cd15c0278c50ca2379837ff1d3ac70b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d03f20c4056eece93397a1a1bc7279f00bdd2d8c4305cddd704920035ea3873",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-04-17T05:22:09Z",
    "title_canon_sha256": "334cb17c32a9f250b55f141a2b0040abd908752150717177a9256d4ad84ce808"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04872",
    "kind": "arxiv",
    "version": 1
  }
}