Pith Number

pith:WXMFHQNQ

pith:2010:WXMFHQNQ5MWVEPFXUQ7L7UZD2M

not attested not anchored not stored refs pending

The Immirzi Parameter as an Instanton Angle

Andrew Randono, Simone Mercuri

arxiv:1005.1291 v1 · 2010-05-07 · hep-th · 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{WXMFHQNQ5MWVEPFXUQ7L7UZD2M}

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	2026-05-18T04:31:41.206082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5d853c1b0eb2d523cb7a43ebfd323d3212e30c95df631053d51fdb2db4845d3

Aliases

arxiv: 1005.1291 · arxiv_version: 1005.1291v1 · doi: 10.48550/arxiv.1005.1291 · pith_short_12: WXMFHQNQ5MWV · pith_short_16: WXMFHQNQ5MWVEPFX · pith_short_8: WXMFHQNQ

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/WXMFHQNQ5MWVEPFXUQ7L7UZD2M \
  | 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: b5d853c1b0eb2d523cb7a43ebfd323d3212e30c95df631053d51fdb2db4845d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2098439f4ec64fd64e013ea045057b581fdb837f20d37b7d0d208631e97a8ae",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-05-07T20:05:31Z",
    "title_canon_sha256": "027942bd4a918b842880734db62979c18d522371ca9b8443fe2cce4c1a3bec1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1291",
    "kind": "arxiv",
    "version": 1
  }
}