Pith Number

pith:NQNCRJYM

pith:2020:NQNCRJYMSTA3PWAQEFUWB4QOZC

not attested not anchored not stored refs pending

A family of metrics from the truncated smoothing of Reeb graphs

Elizabeth Munch, Erin Wolf Chambers, Tim Ophelders

arxiv:2007.07795 v3 · 2020-07-15 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQNCRJYMSTA3PWAQEFUWB4QOZC}

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	2026-06-19T16:12:11.964472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c1a28a70c94c1b7d810216960f20ec8bcb53da89fb93e1aaf7f9857fb52dfa8

Aliases

arxiv: 2007.07795 · arxiv_version: 2007.07795v3 · doi: 10.48550/arxiv.2007.07795 · pith_short_12: NQNCRJYMSTA3 · pith_short_16: NQNCRJYMSTA3PWAQ · pith_short_8: NQNCRJYM

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/NQNCRJYMSTA3PWAQEFUWB4QOZC \
  | 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: 6c1a28a70c94c1b7d810216960f20ec8bcb53da89fb93e1aaf7f9857fb52dfa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58586f2298adbf3184989ba1cc23d9f32e142769abf798aa25800a99ca6e3572",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2020-07-15T16:18:27Z",
    "title_canon_sha256": "fee850bd1d94be82d35232fd0b6d174bb5cf6f695f9a277b3587a5246e072d55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.07795",
    "kind": "arxiv",
    "version": 3
  }
}