Pith Number

pith:EW5OQ2I3

pith:2018:EW5OQ2I3FDKQ7DTBKMK5LFZ6CN

not attested not anchored not stored refs pending

$n$-H-closed spaces

Fortunata Aurora Basile, Jack Porter, Maddalena Bonanzinga, Nathan Carlson

arxiv:1808.07570 v1 · 2018-08-22 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EW5OQ2I3FDKQ7DTBKMK5LFZ6CN}

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	2026-05-18T00:07:26.906941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25bae8691b28d50f8e615315d5973e13631fdff9867a14b2cb5387f26167233e

Aliases

arxiv: 1808.07570 · arxiv_version: 1808.07570v1 · doi: 10.48550/arxiv.1808.07570 · pith_short_12: EW5OQ2I3FDKQ · pith_short_16: EW5OQ2I3FDKQ7DTB · pith_short_8: EW5OQ2I3

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/EW5OQ2I3FDKQ7DTBKMK5LFZ6CN \
  | 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: 25bae8691b28d50f8e615315d5973e13631fdff9867a14b2cb5387f26167233e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6be7ef04a337caf0aafb65cd056429a1f03bb76a453899489a060089faeeb4df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2018-08-22T21:34:58Z",
    "title_canon_sha256": "b05c21add44fe382239a59ab2eb5590199e60f911299b1ab1052fd525f2b6386"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07570",
    "kind": "arxiv",
    "version": 1
  }
}