Pith Number

pith:62ZPVHM4

pith:2018:62ZPVHM4YXTGRL4NBTIBPL7ZU5

not attested not anchored not stored refs pending

Reflections on trisection genus

Michelle Chu, Stephan Tillmann

arxiv:1809.04801 v1 · 2018-09-13 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{62ZPVHM4YXTGRL4NBTIBPL7ZU5}

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	2026-05-18T00:05:49.583335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6b2fa9d9cc5e668af8d0cd017aff9a74885ccb237ead95568469602c9a9b675

Aliases

arxiv: 1809.04801 · arxiv_version: 1809.04801v1 · doi: 10.48550/arxiv.1809.04801 · pith_short_12: 62ZPVHM4YXTG · pith_short_16: 62ZPVHM4YXTGRL4N · pith_short_8: 62ZPVHM4

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/62ZPVHM4YXTGRL4NBTIBPL7ZU5 \
  | 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: f6b2fa9d9cc5e668af8d0cd017aff9a74885ccb237ead95568469602c9a9b675

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79c24481f1622d678baa25d272497400fd152e41612f04a631db75f971e57825",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-09-13T06:52:05Z",
    "title_canon_sha256": "5552e21796aa7452be2d0de474e5546c13490ae9a0aa47e0d473cc8d31cf0eab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04801",
    "kind": "arxiv",
    "version": 1
  }
}