Pith Number

pith:7LLJ3THV

pith:2012:7LLJ3THV2REAR7OOK4RYHFPSML

not attested not anchored not stored refs pending

Chandra X-ray and Hubble Space Telescope Imaging of Optically Selected kiloparsec-Scale Binary Active Galactic Nuclei I. Nature of the Nuclear Ionizing Sources

Francesca Civano, Jenny E. Greene, Michael A. Strauss, Paul J. Green, Xin Liu, Yue Shen

arxiv:1209.5418 v2 · 2012-09-24 · 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{7LLJ3THV2REAR7OOK4RYHFPSML}

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	2026-05-18T01:54:19.300636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fad69dccf5d44808fdce57238395f262ea38bdb1ad571fce7f0068625972a373

Aliases

arxiv: 1209.5418 · arxiv_version: 1209.5418v2 · doi: 10.48550/arxiv.1209.5418 · pith_short_12: 7LLJ3THV2REA · pith_short_16: 7LLJ3THV2REAR7OO · pith_short_8: 7LLJ3THV

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/7LLJ3THV2REAR7OOK4RYHFPSML \
  | 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: fad69dccf5d44808fdce57238395f262ea38bdb1ad571fce7f0068625972a373

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98c78c0a29d8a510a55a9f132642820d28ba5e95b5b724bc5816147b6ce33d7b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-24T20:51:16Z",
    "title_canon_sha256": "74469f05ebae4b21d5a1062e5536abb0c90a9b6082519d597ed7918d1df15617"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5418",
    "kind": "arxiv",
    "version": 2
  }
}