Pith Number

pith:KJNUIVCV

pith:1995:KJNUIVCVLRQ7HFWE4BACOEUVBX

not attested not anchored not stored refs pending

Structural Issues in Quantum Gravity

Chris Isham

arxiv:gr-qc/9510063 v1 · 1995-10-31 · gr-qc · hep-th · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KJNUIVCVLRQ7HFWE4BACOEUVBX}

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

2 papers in Pith

Localization and anomalous reference frames in gravity

Gravitational null rays: Covariant Quantization and the Dressing Time

Receipt and verification

First computed	2026-07-04T14:26:03.567844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

525b4454555c61f396c4e0402712950dde34aabff2d1c74c5c3817cc2546734e

Aliases

arxiv: gr-qc/9510063 · arxiv_version: gr-qc/9510063v1 · doi: 10.48550/arxiv.gr-qc/9510063 · pith_short_12: KJNUIVCVLRQ7 · pith_short_16: KJNUIVCVLRQ7HFWE · pith_short_8: KJNUIVCV

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/KJNUIVCVLRQ7HFWE4BACOEUVBX \
  | 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: 525b4454555c61f396c4e0402712950dde34aabff2d1c74c5c3817cc2546734e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e9e00fffbacf55db2f702aa7182b68fc816f6e9c6e44cbdc810967373135b42",
    "cross_cats_sorted": [
      "hep-th",
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1995-10-31T22:45:43Z",
    "title_canon_sha256": "28ac276cb15cfc9b868f6e1bcbea6d9341583ac5a148fe44de3b1a2d534ad8bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9510063",
    "kind": "arxiv",
    "version": 1
  }
}