Pith Number

pith:7WELN3QK

pith:2018:7WELN3QKZLSPH6KPH6QZ5FW37W

not attested not anchored not stored refs pending

Escher squares and lattice links

Andrei Pavelescu, Elena Pavelescu, Ramin Naimi

arxiv:1804.04724 v1 · 2018-04-12 · 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{7WELN3QKZLSPH6KPH6QZ5FW37W}

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	2026-05-18T00:18:35.172537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd88b6ee0acae4f3f94f3fa19e96dbfd8df4ed5bb49132a05eb5eb086499b8ac

Aliases

arxiv: 1804.04724 · arxiv_version: 1804.04724v1 · doi: 10.48550/arxiv.1804.04724 · pith_short_12: 7WELN3QKZLSP · pith_short_16: 7WELN3QKZLSPH6KP · pith_short_8: 7WELN3QK

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/7WELN3QKZLSPH6KPH6QZ5FW37W \
  | 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: fd88b6ee0acae4f3f94f3fa19e96dbfd8df4ed5bb49132a05eb5eb086499b8ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d704662524dbd578d542dbf8d55d277c7093014a2b6f0c67c35534eb47296b44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-04-12T20:54:23Z",
    "title_canon_sha256": "9fc477bb28e185bd25f87d8fc1b276e26e6aabe6009b54f4fa0ac50bc04b74df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04724",
    "kind": "arxiv",
    "version": 1
  }
}