Pith Number

pith:C52XV5VB

pith:2012:C52XV5VB654W6HCIFJQG4WSL2S

not attested not anchored not stored refs pending

Topological censorship from the initial data point of view

Daniel Pollack, Gregory J. Galloway, Michael Eichmair

arxiv:1204.0278 v2 · 2012-04-01 · gr-qc · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C52XV5VB654W6HCIFJQG4WSL2S}

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.

Cited by

1 paper in Pith

A Quantum Singularity Theorem for the Evaporating Black Hole

Receipt and verification

First computed	2026-05-18T03:20:56.950039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17757af6a1f7796f1c482a606e5a4bd48230c446ec0989e1659d2a9b73e4ffde

Aliases

arxiv: 1204.0278 · arxiv_version: 1204.0278v2 · doi: 10.48550/arxiv.1204.0278 · pith_short_12: C52XV5VB654W · pith_short_16: C52XV5VB654W6HCI · pith_short_8: C52XV5VB

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/C52XV5VB654W6HCIFJQG4WSL2S \
  | 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: 17757af6a1f7796f1c482a606e5a4bd48230c446ec0989e1659d2a9b73e4ffde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8f417398dd1eac5529bdaa043b41c34fab6ab1c50bd62c031e3bf0b969a25e7",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-04-01T23:04:59Z",
    "title_canon_sha256": "2b179e182835bf9dcf92b32d27e5ac784d317cde0e764ad73f546447f1fc08dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0278",
    "kind": "arxiv",
    "version": 2
  }
}