pith. sign in
Pith Number

pith:IYAPDLRL

pith:2011:IYAPDLRLHOGHELFZC6UVQV34ML
not attested not anchored not stored refs pending

Loop Quantum Gravity Vacuum with Nondegenerate Geometry

Hanno Sahlmann, Tim Koslowski

arxiv:1109.4688 v2 · 2011-09-22 · gr-qc · math-ph · math.MP

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{IYAPDLRLHOGHELFZC6UVQV34ML}

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 2026-05-18T03:55:46.998410Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

4600f1ae2b3b8c722cb917a958577c62f05567d8bb55811bda4ce605e6dcf1ca

Aliases

arxiv: 1109.4688 · arxiv_version: 1109.4688v2 · doi: 10.48550/arxiv.1109.4688 · pith_short_12: IYAPDLRLHOGH · pith_short_16: IYAPDLRLHOGHELFZ · pith_short_8: IYAPDLRL
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/IYAPDLRLHOGHELFZC6UVQV34ML \
  | 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: 4600f1ae2b3b8c722cb917a958577c62f05567d8bb55811bda4ce605e6dcf1ca
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "581bc1a74286daa7d59a725db1076e94f5f91ffd093bc088a87212e3c4c2a179",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-09-22T02:08:29Z",
    "title_canon_sha256": "ed4cda1a3e8c8067a3ec1c9577e98a0a5f62ed8644be96adbfdfe7116e98cea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4688",
    "kind": "arxiv",
    "version": 2
  }
}