Pith Number

pith:UEOPPIXY

pith:2009:UEOPPIXYIY2GFAFRQ6RRQJITUC

not attested not anchored not stored refs pending

Radial Distribution of X-ray Point Sources near the Galactic Center

JaeSub Hong, Jonathan E. Grindlay, Maureen van den Berg, Silas Laycock

arxiv:0908.4306 v1 · 2009-08-29 · 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{UEOPPIXYIY2GFAFRQ6RRQJITUC}

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	2026-05-18T02:34:37.147592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a11cf7a2f846346280b187a3182513a09c3de000b9204526d8d5addae0661823

Aliases

arxiv: 0908.4306 · arxiv_version: 0908.4306v1 · doi: 10.48550/arxiv.0908.4306 · pith_short_12: UEOPPIXYIY2G · pith_short_16: UEOPPIXYIY2GFAFR · pith_short_8: UEOPPIXY

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/UEOPPIXYIY2GFAFRQ6RRQJITUC \
  | 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: a11cf7a2f846346280b187a3182513a09c3de000b9204526d8d5addae0661823

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd1056ffc0b9ad43042b109717276b82533511abfeb09bc07f85fd3df3bed255",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-08-29T00:16:50Z",
    "title_canon_sha256": "9e34e8f9a14732c5e911b1a24eb9924b1e51a21e2e654c202fcc14d5030dbf51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.4306",
    "kind": "arxiv",
    "version": 1
  }
}