Pith Number

pith:KP75SEYJ

pith:2010:KP75SEYJ2ZRIPO3DOHJNAY5UAR

not attested not anchored not stored refs pending

X-ray study of HLX1: intermediate-mass black hole or foreground neutron star?

Kinwah Wu, Luca Zampieri, Roberto Soria, Silvia Zane

arxiv:1008.3382 v2 · 2010-08-19 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KP75SEYJ2ZRIPO3DOHJNAY5UAR}

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	2026-05-18T02:05:46.493840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53ffd91309d66287bb6371d2d063b4045cc349d6a9bf2d586a864013c6623154

Aliases

arxiv: 1008.3382 · arxiv_version: 1008.3382v2 · doi: 10.48550/arxiv.1008.3382 · pith_short_12: KP75SEYJ2ZRI · pith_short_16: KP75SEYJ2ZRIPO3D · pith_short_8: KP75SEYJ

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/KP75SEYJ2ZRIPO3DOHJNAY5UAR \
  | 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: 53ffd91309d66287bb6371d2d063b4045cc349d6a9bf2d586a864013c6623154

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "027f8473d2c93ec5d564160e50fbdbf8778db8b805ba2dbc582076d52ab16d65",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-08-19T20:00:00Z",
    "title_canon_sha256": "adbe00b7811c9cc7f8d8da112bbba349e81f51058b38e68a0c53410ace3e4386"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.3382",
    "kind": "arxiv",
    "version": 2
  }
}