Pith Number

pith:Z3H6GERA

pith:2011:Z3H6GERAWTFE5OKNRYEH6JRC2V

not attested not anchored not stored refs pending

X-ray Variability and Hardness of ESO 243-49 HLX-1: Clear Evidence for Spectral State Transitions

Dacheng Lin, Didier Barret, Mathieu Servillat, Natalie A. Webb, Olivier Godet, Sean A. Farrell

arxiv:1108.4405 v1 · 2011-08-22 · 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{Z3H6GERAWTFE5OKNRYEH6JRC2V}

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	2026-05-18T02:00:49.685402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cecfe31220b4ca4eb94d8e087f2622d57c80b07662b727ee808243a2b1c3cb90

Aliases

arxiv: 1108.4405 · arxiv_version: 1108.4405v1 · doi: 10.48550/arxiv.1108.4405 · pith_short_12: Z3H6GERAWTFE · pith_short_16: Z3H6GERAWTFE5OKN · pith_short_8: Z3H6GERA

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/Z3H6GERAWTFE5OKNRYEH6JRC2V \
  | 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: cecfe31220b4ca4eb94d8e087f2622d57c80b07662b727ee808243a2b1c3cb90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7be751157d557de261a4949a4464b4e8d9c6b4257170dea4cfc4cb07e713fd7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-08-22T19:49:02Z",
    "title_canon_sha256": "75cb01ed0b153188cfcc1ea69e83e3a69d2170e1c54484cabc92e0ff000dff22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4405",
    "kind": "arxiv",
    "version": 1
  }
}