Pith Number

pith:XPWRWTL2

pith:2002:XPWRWTL2UDPMO64YZUI7I3WGJE

not attested not anchored not stored refs pending

Towards the QFT on Curved Spacetime Limit of QGR. II: A Concrete Implementation

Hanno Sahlmann, Thomas Thiemann

arxiv:gr-qc/0207031 v1 · 2002-07-05 · gr-qc · hep-th · math-ph · math.MP · 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{XPWRWTL2UDPMO64YZUI7I3WGJE}

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	2026-05-18T02:37:35.637140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbed1b4d7aa0dec77b98cd11f46ec6492b56d05c529c22c289d2f6e83fe527ad

Aliases

arxiv: gr-qc/0207031 · arxiv_version: gr-qc/0207031v1 · doi: 10.48550/arxiv.gr-qc/0207031 · pith_short_12: XPWRWTL2UDPM · pith_short_16: XPWRWTL2UDPMO64Y · pith_short_8: XPWRWTL2

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/XPWRWTL2UDPMO64YZUI7I3WGJE \
  | 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: bbed1b4d7aa0dec77b98cd11f46ec6492b56d05c529c22c289d2f6e83fe527ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbd301c6fd7f29b1683a544512aab4936ed9749a46e2075735da235617921490",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP",
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-07-05T13:59:50Z",
    "title_canon_sha256": "8b403ef89a9cc01e63d858e51219e508c685ff5acfe72c77122bc378824775d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0207031",
    "kind": "arxiv",
    "version": 1
  }
}