Pith Number

pith:HCIPZK2G

pith:2009:HCIPZK2G5KMUAD3BAQ4B4F3WQO

not attested not anchored not stored refs pending

The absorption-dominated model for the X-ray spectra of type I active galaxies: MCG-6-30-15

J.N. Reeves, L. Miller, T.J. Turner

arxiv:0907.3114 v1 · 2009-07-17 · 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{HCIPZK2G5KMUAD3BAQ4B4F3WQO}

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	2026-07-04T15:53:30.626763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3890fcab46ea99400f6104381e1776838bba0b9f4333fe323e7efcef46dc690f

Aliases

arxiv: 0907.3114 · arxiv_version: 0907.3114v1 · doi: 10.48550/arxiv.0907.3114 · pith_short_12: HCIPZK2G5KMU · pith_short_16: HCIPZK2G5KMUAD3B · pith_short_8: HCIPZK2G

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/HCIPZK2G5KMUAD3BAQ4B4F3WQO \
  | 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: 3890fcab46ea99400f6104381e1776838bba0b9f4333fe323e7efcef46dc690f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "246de8a72d6374aefeb61571260b572f830c9784d4c3633af65525f407cf91b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-07-17T18:42:33Z",
    "title_canon_sha256": "7848edd9fc7020df8bbcdd34044663996f42a552d0d5a69a7697d288f31b7ae5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3114",
    "kind": "arxiv",
    "version": 1
  }
}