Pith Number

pith:O2Y5BOGD

pith:2011:O2Y5BOGDDD67KT6EXBVQ7JLEQA

not attested not anchored not stored refs pending

The no-boundary measure in scalar-tensor gravity

Dong-han Yeom, Dong-il Hwang, Hanno Sahlmann

arxiv:1107.4653 v2 · 2011-07-23 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2Y5BOGDDD67KT6EXBVQ7JLEQA}

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	2026-05-18T02:01:11.067686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76b1d0b8c318fdf54fc4b86b0fa56480110897597eeb948846b5f44a9a224d3d

Aliases

arxiv: 1107.4653 · arxiv_version: 1107.4653v2 · doi: 10.48550/arxiv.1107.4653 · pith_short_12: O2Y5BOGDDD67 · pith_short_16: O2Y5BOGDDD67KT6E · pith_short_8: O2Y5BOGD

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/O2Y5BOGDDD67KT6EXBVQ7JLEQA \
  | 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: 76b1d0b8c318fdf54fc4b86b0fa56480110897597eeb948846b5f44a9a224d3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2d07cc5b661afaf6b57ef228f7d3d222806673f364ae217e12d2fbf29d88c7f",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-07-23T03:52:01Z",
    "title_canon_sha256": "5268380d6b8e0cf3eb8b4510c820cd696d16e3651ede0fe1c3099a6a06a127c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4653",
    "kind": "arxiv",
    "version": 2
  }
}