Pith Number

pith:JTHILCGS

pith:2018:JTHILCGSX6WP74T26A6WTQZQHZ

not attested not anchored not stored refs pending

On Monotone Sequences of Directed Flips, Triangulations of Polyhedra, and Structural Properties of a Directed Flip Graph

Hang Si

arxiv:1809.09701 v2 · 2018-09-25 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JTHILCGSX6WP74T26A6WTQZQHZ}

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	2026-05-18T00:02:44.253268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cce8588d2bfacfff27af03d69c3303e7a1ae5dc21b3cebf7e0de58ad8eaece1

Aliases

arxiv: 1809.09701 · arxiv_version: 1809.09701v2 · doi: 10.48550/arxiv.1809.09701 · pith_short_12: JTHILCGSX6WP · pith_short_16: JTHILCGSX6WP74T2 · pith_short_8: JTHILCGS

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/JTHILCGSX6WP74T26A6WTQZQHZ \
  | 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: 4cce8588d2bfacfff27af03d69c3303e7a1ae5dc21b3cebf7e0de58ad8eaece1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e7dad997f18a891d89eeb2204a4e87218b58609a3f0b1bc38b11f431365ab53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-09-25T20:21:07Z",
    "title_canon_sha256": "afe6e5fd27067e3ae907ad0eb68e700d882d8ec824a4b9a8e0bc8d03452fabef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09701",
    "kind": "arxiv",
    "version": 2
  }
}