Pith Number

pith:Y7XRIBQI

pith:2013:Y7XRIBQISEXIN4L3ZOFWIMQIVH

not attested not anchored not stored refs pending

Some spectral properties of Rooms and Passages domains and their skeletons

B.M. Brown, I.G. Wood, W.D. Evans

arxiv:1301.4396 v1 · 2013-01-18 · math.SP · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7XRIBQISEXIN4L3ZOFWIMQIVH}

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	2026-05-18T03:36:05.496063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7ef140608912e86f17bcb8b643208a9cb9e74544d7918ce4704809b8db21d27

Aliases

arxiv: 1301.4396 · arxiv_version: 1301.4396v1 · doi: 10.48550/arxiv.1301.4396 · pith_short_12: Y7XRIBQISEXI · pith_short_16: Y7XRIBQISEXIN4L3 · pith_short_8: Y7XRIBQI

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/Y7XRIBQISEXIN4L3ZOFWIMQIVH \
  | 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: c7ef140608912e86f17bcb8b643208a9cb9e74544d7918ce4704809b8db21d27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a746bd51d088eb3fb1e7b983d909d333d7d4cc000445e33b7767d49be71789f5",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2013-01-18T14:59:29Z",
    "title_canon_sha256": "277d63a376a161ef2ff87bc887cbd34e2acc785972a54dba2f2d48f3a97b44c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4396",
    "kind": "arxiv",
    "version": 1
  }
}