Pith Number

pith:CSX5TWI7

pith:1993:CSX5TWI7JN45G6N6XMLDTIFVZ5

not attested not anchored not stored refs pending

A Proposal for Solving the ``Problem of Time" in Canonical Quantum Gravity

Robert M. Wald

arxiv:gr-qc/9305024 v1 · 1993-05-25 · 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{CSX5TWI7JN45G6N6XMLDTIFVZ5}

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

Gravitational Hilbert spaces: invariant and co-invariant states, inner products, gauge-fixing, and BRST

Receipt and verification

First computed	2026-07-04T17:18:22.487202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14afd9d91f4b79d379bebb1639a0b5cf40697829958c0b95047cea939889e9ec

Aliases

arxiv: gr-qc/9305024 · arxiv_version: gr-qc/9305024v1 · doi: 10.48550/arxiv.gr-qc/9305024 · pith_short_12: CSX5TWI7JN45 · pith_short_16: CSX5TWI7JN45G6N6 · pith_short_8: CSX5TWI7

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/CSX5TWI7JN45G6N6XMLDTIFVZ5 \
  | 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: 14afd9d91f4b79d379bebb1639a0b5cf40697829958c0b95047cea939889e9ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "165d865b2527fb4e6b16814f05bb0b71c37d14f5fef37a7d4075183039711cea",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1993-05-25T19:42:55Z",
    "title_canon_sha256": "64586f77906460a5148e4d56e374a1f06f63512be39c3f4370391743a032bf0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9305024",
    "kind": "arxiv",
    "version": 1
  }
}