Pith Number

pith:LG7QE5T7

pith:2013:LG7QE5T7NPWYPVVHCHJS56J3YS

not attested not anchored not stored refs pending

A State Transition of the Luminous X-ray Binary in the Low-Metallicity Blue Compact Dwarf Galaxy I Zw 18

Hua Feng, Philip Kaaret

arxiv:1304.6731 v2 · 2013-04-24 · 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{LG7QE5T7NPWYPVVHCHJS56J3YS}

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	2026-05-18T01:50:22.242399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59bf02767f6bed87d6a711d32ef93bc4b33de2c7b2de885fc743026a6bef98cf

Aliases

arxiv: 1304.6731 · arxiv_version: 1304.6731v2 · doi: 10.48550/arxiv.1304.6731 · pith_short_12: LG7QE5T7NPWY · pith_short_16: LG7QE5T7NPWYPVVH · pith_short_8: LG7QE5T7

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/LG7QE5T7NPWYPVVHCHJS56J3YS \
  | 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: 59bf02767f6bed87d6a711d32ef93bc4b33de2c7b2de885fc743026a6bef98cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbf0f31322d618dca7166f67b35bf7b69c5160f731bea38f7a73ea1fafbad49c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-04-24T20:03:23Z",
    "title_canon_sha256": "22e35a72c79aab80ce5d279ad516c0140116aafc722176e5be0b5b5c7d237aa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6731",
    "kind": "arxiv",
    "version": 2
  }
}