Pith Number

pith:BEPNPYRV

pith:2012:BEPNPYRVLP27ROT7CMYKGSRMV7

not attested not anchored not stored refs pending

The picture of the Bianchi I model via gauge fixing in Loop Quantum Gravity

Andrea Marchini, Francesco Cianfrani, Giovanni Montani

arxiv:1201.2588 v1 · 2012-01-12 · 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{BEPNPYRVLP27ROT7CMYKGSRMV7}

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	2026-05-18T01:58:52.104666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

091ed7e2355bf5f8ba7f1330a34a2cafd0cab1c1add776c2f3d065e1abd28230

Aliases

arxiv: 1201.2588 · arxiv_version: 1201.2588v1 · doi: 10.48550/arxiv.1201.2588 · pith_short_12: BEPNPYRVLP27 · pith_short_16: BEPNPYRVLP27ROT7 · pith_short_8: BEPNPYRV

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/BEPNPYRVLP27ROT7CMYKGSRMV7 \
  | 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: 091ed7e2355bf5f8ba7f1330a34a2cafd0cab1c1add776c2f3d065e1abd28230

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc9bca0f3bea0b0f7ac89b064d17ecd62c59a7ad8290188cf7c944bbb238bc0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-01-12T15:22:23Z",
    "title_canon_sha256": "0a9b8dcde93ffe572c09d0325eceaf5b52bad16a798e5d459c430cf5d849f91b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2588",
    "kind": "arxiv",
    "version": 1
  }
}