Pith Number

pith:WHZVZZUT

pith:2022:WHZVZZUTOUZ5MDV67KBJ6TCKNM

not attested not anchored not stored refs pending

Rigidity of Acute Triangulations of the Plane

Tianqi Wu

arxiv:2208.00580 v2 · 2022-08-01 · 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{WHZVZZUTOUZ5MDV67KBJ6TCKNM}

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	2026-07-05T04:46:39.728932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1f35ce6937533d60ebefa829f4c4a6b1053a5c2fcef25c0eb235185619918f3

Aliases

arxiv: 2208.00580 · arxiv_version: 2208.00580v2 · doi: 10.48550/arxiv.2208.00580 · pith_short_12: WHZVZZUTOUZ5 · pith_short_16: WHZVZZUTOUZ5MDV6 · pith_short_8: WHZVZZUT

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/WHZVZZUTOUZ5MDV67KBJ6TCKNM \
  | 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: b1f35ce6937533d60ebefa829f4c4a6b1053a5c2fcef25c0eb235185619918f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "305533af9303c64fd61a2ff455bf168325c3856b2c28062f5377a6ed115f8988",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2022-08-01T02:41:41Z",
    "title_canon_sha256": "646e4969096433ead84c0f4d41917e8adb6fa20fe5b12a49dda8a3c87bf84bcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.00580",
    "kind": "arxiv",
    "version": 2
  }
}