Pith Number

pith:BX3MXCAS

pith:2011:BX3MXCASURCNJ2ZUW25YACKWFR

not attested not anchored not stored refs pending

The Swift BAT-detected Seyfert 1 Galaxies: X-ray Broadband Properties and Warm Absorbers

Barry McKernan (AMNH, CUNY), Lisa M. Winter (CU), Sylvain Veilleux (UMD), Tim Kallman (NASA GSFC)

arxiv:1112.0540 v1 · 2011-12-02 · 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{BX3MXCASURCNJ2ZUW25YACKWFR}

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	2026-05-18T01:59:17.749255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0df6cb8812a444d4eb34b6bb8009562c76a49b2ffb24d1b92d3c68293c118009

Aliases

arxiv: 1112.0540 · arxiv_version: 1112.0540v1 · doi: 10.48550/arxiv.1112.0540 · pith_short_12: BX3MXCASURCN · pith_short_16: BX3MXCASURCNJ2ZU · pith_short_8: BX3MXCAS

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/BX3MXCASURCNJ2ZUW25YACKWFR \
  | 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: 0df6cb8812a444d4eb34b6bb8009562c76a49b2ffb24d1b92d3c68293c118009

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e00e2bc0df9d102bac1140e51655b8dd776ccf648804d581057763ddfa169bf8",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-12-02T18:49:32Z",
    "title_canon_sha256": "881a2e7cd047cdfb3c8ae30f828a65163b64dfa38d4fa06786863edd73ba4140"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0540",
    "kind": "arxiv",
    "version": 1
  }
}