Pith Number

pith:LHYT2ILZ

pith:2019:LHYT2ILZUUAXEBMMKGSD4DEIXF

not attested not anchored not stored refs pending

Searching for classical geometries in spin foam amplitudes: a numerical method

Francesco Gozzini, Giorgio Sarno, Pietro Dona

arxiv:1909.07832 v2 · 2019-09-17 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LHYT2ILZUUAXEBMMKGSD4DEIXF}

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	2026-07-05T07:48:42.122852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59f13d2179a50172058c51a43e0c88b960f28df6bcaf36447cf87bdf1cbabb2e

Aliases

arxiv: 1909.07832 · arxiv_version: 1909.07832v2 · doi: 10.48550/arxiv.1909.07832 · pith_short_12: LHYT2ILZUUAX · pith_short_16: LHYT2ILZUUAXEBMM · pith_short_8: LHYT2ILZ

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/LHYT2ILZUUAXEBMMKGSD4DEIXF \
  | 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: 59f13d2179a50172058c51a43e0c88b960f28df6bcaf36447cf87bdf1cbabb2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9283ffd1632df25a43f6fe9ce68a3c30e4498e31221bd629ffdd63bf380fe32c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-09-17T14:13:38Z",
    "title_canon_sha256": "12df00fbcfbaeefe43303310d1d08d22cb3281e995b8e81be3c35984646b2eab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.07832",
    "kind": "arxiv",
    "version": 2
  }
}