Pith Number

pith:YMRXYE63

pith:2012:YMRXYE63MRB5O4DY3YQHU4OSXZ

not attested not anchored not stored refs pending

Indestructibility of compact spaces

Franklin D. Tall, Rodrigo R. Dias

arxiv:1211.1719 v2 · 2012-11-07 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YMRXYE63MRB5O4DY3YQHU4OSXZ}

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	2026-05-18T02:51:15.233698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3237c13db6443d77078de207a71d2be5ee4ff2419f811cc3b4b806f9e314f65

Aliases

arxiv: 1211.1719 · arxiv_version: 1211.1719v2 · doi: 10.48550/arxiv.1211.1719 · pith_short_12: YMRXYE63MRB5 · pith_short_16: YMRXYE63MRB5O4DY · pith_short_8: YMRXYE63

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/YMRXYE63MRB5O4DY3YQHU4OSXZ \
  | 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: c3237c13db6443d77078de207a71d2be5ee4ff2419f811cc3b4b806f9e314f65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b720fb95ee9a2587729dece0750fe07c6e9e4592f82ba35aaea081eb1e8f4cbb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2012-11-07T22:56:56Z",
    "title_canon_sha256": "b0e3374848083efaa4b7d4bdd97f401102f35be77af51b42cc5f78e262c5091b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1719",
    "kind": "arxiv",
    "version": 2
  }
}