Pith Number

pith:YGQXQOY5

pith:2014:YGQXQOY5IC6WXZ5VWYOVFK5AEO

not attested not anchored not stored refs pending

Reconstruction of the geometric structure of a set of points in the plane from its geometric tree graph

Chaya Keller, Micha A. Perles

arxiv:1412.8400 v1 · 2014-12-29 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YGQXQOY5IC6WXZ5VWYOVFK5AEO}

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	2026-05-18T02:30:23.363154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1a1783b1d40bd6be7b5b61d52aba023b8c7807b3763e993e5d4e9e9b1b10633

Aliases

arxiv: 1412.8400 · arxiv_version: 1412.8400v1 · doi: 10.48550/arxiv.1412.8400 · pith_short_12: YGQXQOY5IC6W · pith_short_16: YGQXQOY5IC6WXZ5V · pith_short_8: YGQXQOY5

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/YGQXQOY5IC6WXZ5VWYOVFK5AEO \
  | 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: c1a1783b1d40bd6be7b5b61d52aba023b8c7807b3763e993e5d4e9e9b1b10633

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddcaffd25e002f108434b776d76ebadf2073023afbd373c142810dfb716a2bc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-12-29T17:27:16Z",
    "title_canon_sha256": "6b4d7efd668b5fed4f92aba2d3e1a1effb13c666130c26ea7ae582f2c158b894"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.8400",
    "kind": "arxiv",
    "version": 1
  }
}