Pith Number

pith:SIUYP4MM

pith:2009:SIUYP4MM4D3BC7IICI26KQ2GXT

not attested not anchored not stored refs pending

Fast optical variability of Naked-Eye Burst - manifestation of periodic activity of internal engine

A. Guarnieri, A. Piccioni, C. Bartolini, G. Beskin, G. Greco, S. Bondar, S. Karpov

arxiv:0905.4431 v1 · 2009-05-27 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIUYP4MM4D3BC7IICI26KQ2GXT}

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	2026-05-18T02:13:31.618332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

922987f18ce0f6117d081235e54346bccfde384d4d52b3d3e15f82dc3d69f3ec

Aliases

arxiv: 0905.4431 · arxiv_version: 0905.4431v1 · doi: 10.48550/arxiv.0905.4431 · pith_short_12: SIUYP4MM4D3B · pith_short_16: SIUYP4MM4D3BC7II · pith_short_8: SIUYP4MM

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/SIUYP4MM4D3BC7IICI26KQ2GXT \
  | 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: 922987f18ce0f6117d081235e54346bccfde384d4d52b3d3e15f82dc3d69f3ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e02e000d5ed587f362c4c8d101630c38349b90bafcfbf77eecd730c28c41a225",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-05-27T14:18:11Z",
    "title_canon_sha256": "b429d163a118652da3dfb9e58eac257b570b9d6a1a4b552ac8be180a5255ab83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4431",
    "kind": "arxiv",
    "version": 1
  }
}