Pith Number

pith:4F7PVPGV

pith:2015:4F7PVPGVMKJQNEA2IXOPFI2AGV

not attested not anchored not stored refs pending

Quantum Cauchy Surfaces in Canonical Quantum Gravity

Chun-Yen Lin

arxiv:1508.02537 v1 · 2015-08-11 · 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{4F7PVPGVMKJQNEA2IXOPFI2AGV}

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	2026-05-18T01:05:46.088145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e17efabcd5629306901a45dcf2a34035510232f411c5b2e0a571f49a05d67133

Aliases

arxiv: 1508.02537 · arxiv_version: 1508.02537v1 · doi: 10.48550/arxiv.1508.02537 · pith_short_12: 4F7PVPGVMKJQ · pith_short_16: 4F7PVPGVMKJQNEA2 · pith_short_8: 4F7PVPGV

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/4F7PVPGVMKJQNEA2IXOPFI2AGV \
  | 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: e17efabcd5629306901a45dcf2a34035510232f411c5b2e0a571f49a05d67133

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d33b523a82f63e098713bb1d39934ad83f0f88471153e594b2c1f4e10bc50674",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-08-11T09:47:17Z",
    "title_canon_sha256": "63bda5f9845b39fb60108ad3e0c7829e0032d41fae1eee1e59c781146e63209f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02537",
    "kind": "arxiv",
    "version": 1
  }
}