Pith Number

pith:F2RLJ6YN

pith:2019:F2RLJ6YNGLJUQ24CV65TRIPU5U

not attested not anchored not stored refs pending

Compact inverse categories

Chris Heunen, Robin Cockett

arxiv:1906.04248 v1 · 2019-06-10 · math.CT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F2RLJ6YNGLJUQ24CV65TRIPU5U}

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	2026-05-17T23:43:39.839794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ea2b4fb0d32d3486b82afbb38a1f4ed24aca29b854ad7e5f4a99b83ab3665a7

Aliases

arxiv: 1906.04248 · arxiv_version: 1906.04248v1 · doi: 10.48550/arxiv.1906.04248 · pith_short_12: F2RLJ6YNGLJU · pith_short_16: F2RLJ6YNGLJUQ24C · pith_short_8: F2RLJ6YN

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/F2RLJ6YNGLJUQ24CV65TRIPU5U \
  | 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: 2ea2b4fb0d32d3486b82afbb38a1f4ed24aca29b854ad7e5f4a99b83ab3665a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75bc9e1b0adbf85291c1ad52e51d88acebc4ffd0a7ec8d9f2aa5bb038f02118e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2019-06-10T19:44:50Z",
    "title_canon_sha256": "fa472efeea7abd87cc6ba243dbf74891e621625545d66c9eb17ad8619929632f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04248",
    "kind": "arxiv",
    "version": 1
  }
}