Pith Number

pith:HKBK6NY5

pith:2012:HKBK6NY5XBP2X7XDIBCQN5E6ZZ

not attested not anchored not stored refs pending

Time in quantum gravity

Christian Wuthrich, Nick Huggett, Tiziana Vistarini

arxiv:1207.1635 v1 · 2012-07-03 · physics.hist-ph · 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{HKBK6NY5XBP2X7XDIBCQN5E6ZZ}

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	2026-05-18T03:16:17.323095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a82af371db85fabfee3404506f49ece6990f2cc2b33adc06546e338737b121a

Aliases

arxiv: 1207.1635 · arxiv_version: 1207.1635v1 · doi: 10.48550/arxiv.1207.1635 · pith_short_12: HKBK6NY5XBP2 · pith_short_16: HKBK6NY5XBP2X7XD · pith_short_8: HKBK6NY5

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/HKBK6NY5XBP2X7XDIBCQN5E6ZZ \
  | 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: 3a82af371db85fabfee3404506f49ece6990f2cc2b33adc06546e338737b121a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cba2d40a9509843c85594d736553d2dfaab4271f82784839403e64c6c982ff6",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2012-07-03T09:44:22Z",
    "title_canon_sha256": "fcb72531b00a5fd44e56a225ff3e180d404746e2ac0abccfd916589e4842ad2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1635",
    "kind": "arxiv",
    "version": 1
  }
}