Pith Number

pith:KTLHDKQU

pith:2014:KTLHDKQURU6K7ITUQKBRC53YGF

not attested not anchored not stored refs pending

Planck stars

Carlo Rovelli, Francesca Vidotto

arxiv:1401.6562 v4 · 2014-01-25 · gr-qc · astro-ph.HE · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KTLHDKQURU6K7ITUQKBRC53YGF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:27:44.758982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54d671aa148d3cafa2748283117778316fc8c138a4a13a75c82fa8a3e681a858

Aliases

arxiv: 1401.6562 · arxiv_version: 1401.6562v4 · doi: 10.48550/arxiv.1401.6562 · pith_short_12: KTLHDKQURU6K · pith_short_16: KTLHDKQURU6K7ITU · pith_short_8: KTLHDKQU

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/KTLHDKQURU6K7ITUQKBRC53YGF \
  | 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: 54d671aa148d3cafa2748283117778316fc8c138a4a13a75c82fa8a3e681a858

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52f1f095c0bf894872a66d3b9b2370c09cb9611c792c6ae67a2b917a53a67e35",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-01-25T18:09:39Z",
    "title_canon_sha256": "e1e1a561d2a878eb954cec7fa51e63b296ce0e6b960acb6c84851df8c1c5de31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.6562",
    "kind": "arxiv",
    "version": 4
  }
}