Pith Number

pith:XF4X6HJ7

pith:2012:XF4X6HJ7NSDAG7GRVAZUZ5PPF7

not attested not anchored not stored refs pending

General Covariance and Background Independence in Quantum Gravity

Manuel B\"arenz

arxiv:1207.0340 v1 · 2012-07-02 · 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{XF4X6HJ7NSDAG7GRVAZUZ5PPF7}

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	2026-05-18T03:51:59.568132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9797f1d3f6c86037cd1a8334cf5ef2ffce840907c51b4730cc47c7301425824

Aliases

arxiv: 1207.0340 · arxiv_version: 1207.0340v1 · doi: 10.48550/arxiv.1207.0340 · pith_short_12: XF4X6HJ7NSDA · pith_short_16: XF4X6HJ7NSDAG7GR · pith_short_8: XF4X6HJ7

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/XF4X6HJ7NSDAG7GRVAZUZ5PPF7 \
  | 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: b9797f1d3f6c86037cd1a8334cf5ef2ffce840907c51b4730cc47c7301425824

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a04e8214e686c9dcae8ef1d093f94bd6f471557a2a9ba595ffe457312e458948",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-07-02T10:58:36Z",
    "title_canon_sha256": "c975123261c06ed44ad93187376a3a752b9504a0ceaf0985edfda20858912b9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0340",
    "kind": "arxiv",
    "version": 1
  }
}