Pith Number

pith:ZKQXTM5T

pith:2009:ZKQXTM5TYY764X2AO2NOCXM4XD

not attested not anchored not stored refs pending

Emission and Absorption Properties of Low-Mass Type 2 Active Galaxies with XMM-Newton

A. J. Barth (UC-Irvine), C.E. Thornton (UC-Irvine), J. E. Greene (Princeton), L. C. Ho (Carnegie)

arxiv:0910.1603 v1 · 2009-10-08 · 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{ZKQXTM5TYY764X2AO2NOCXM4XD}

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	2026-05-18T02:34:19.565282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caa179b3b3c63fee5f40769ae15d9cb8edc4b30244a042427b356c81da17a80e

Aliases

arxiv: 0910.1603 · arxiv_version: 0910.1603v1 · doi: 10.48550/arxiv.0910.1603 · pith_short_12: ZKQXTM5TYY76 · pith_short_16: ZKQXTM5TYY764X2A · pith_short_8: ZKQXTM5T

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/ZKQXTM5TYY764X2AO2NOCXM4XD \
  | 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: caa179b3b3c63fee5f40769ae15d9cb8edc4b30244a042427b356c81da17a80e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8238686a6426e96da7ffb879672a4e98d4d6bbf5702c5af3e25392365ae1dc9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-08T20:19:32Z",
    "title_canon_sha256": "dd39f31249b89dea425c584e86fe5e3f2638759f72329d6020ec7f5972295845"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1603",
    "kind": "arxiv",
    "version": 1
  }
}