Pith Number

pith:EVVER2CZ

pith:2011:EVVER2CZOTUAJ3WHCVGAWVC3HY

not attested not anchored not stored refs pending

Quantum Einstein-Dirac Bianchi Universes

Philippe Spindel, Thibault Damour

arxiv:1103.2927 v1 · 2011-03-15 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EVVER2CZOTUAJ3WHCVGAWVC3HY}

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

An Unfinished Collaboration with A. A. Starobinsky

Receipt and verification

First computed	2026-05-18T04:18:54.468694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

256a48e85974e804eec7154c0b545b3e0625c7008aecbd5e35e6220a0b6653f4

Aliases

arxiv: 1103.2927 · arxiv_version: 1103.2927v1 · doi: 10.48550/arxiv.1103.2927 · pith_short_12: EVVER2CZOTUA · pith_short_16: EVVER2CZOTUAJ3WH · pith_short_8: EVVER2CZ

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/EVVER2CZOTUAJ3WHCVGAWVC3HY \
  | 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: 256a48e85974e804eec7154c0b545b3e0625c7008aecbd5e35e6220a0b6653f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4722672a8737500c8e7ec6b904a6383cb280b8b4bc44d3347bfd443c20bbf7b8",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-03-15T14:54:52Z",
    "title_canon_sha256": "95f001502c00cd7e0a9da27801321343892601a389bb146a2256b0a6267f1bf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2927",
    "kind": "arxiv",
    "version": 1
  }
}