Pith Number

pith:XSFDZMAP

pith:2004:XSFDZMAP3DHDO5L5WS4UW4YFHY

not attested not anchored not stored refs pending

What is a particle?

Carlo Rovelli, Daniele Colosi

arxiv:gr-qc/0409054 v2 · 2004-09-14 · gr-qc · physics.hist-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{XSFDZMAP3DHDO5L5WS4UW4YFHY}

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

1 paper in Pith

Helicity-supported stationary spacetimes: A class of finite-energy, horizonless, axisymmetric solutions

Receipt and verification

First computed	2026-05-18T03:26:23.575617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc8a3cb00fd8ce37757db4b94b73053e2ed215bc774db2fed6087109f81696b7

Aliases

arxiv: gr-qc/0409054 · arxiv_version: gr-qc/0409054v2 · doi: 10.48550/arxiv.gr-qc/0409054 · pith_short_12: XSFDZMAP3DHD · pith_short_16: XSFDZMAP3DHDO5L5 · pith_short_8: XSFDZMAP

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/XSFDZMAP3DHDO5L5WS4UW4YFHY \
  | 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: bc8a3cb00fd8ce37757db4b94b73053e2ed215bc774db2fed6087109f81696b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0f0d94771621ed98a884b01a98beddce761ea1e74a1588a4df316efd9702da6",
    "cross_cats_sorted": [
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-09-14T14:55:32Z",
    "title_canon_sha256": "8877f493301375387f0170ce70169c05efbd662bebfddb4aa9e431ebfd3b7aa8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0409054",
    "kind": "arxiv",
    "version": 2
  }
}