Pith Number

pith:ZA4VALYT

pith:2012:ZA4VALYTIGKLOSYTD6JE7HYOB7

not attested not anchored not stored refs pending

The Chandra Multi-Wavelength Project: Optical Spectroscopy and the Broadband Spectral Energy Distributions of X-ray Selected AGN

Amy Mossman, Anca Constantin, Angel Ruiz, Angie Wolfgang, Belinda J. Wilkes, Buell T. Jannuzi, Craig Foltz, Daniel R. Wik, Daryl Haggard, Dong-Woo Kim, Encarni Romero-Colmenero, Guillermo Torres, Herman L. Marshall, John D. Silverman, Laura M. Perez, Malcolm G. Smith, Markos Trichas, Paul J. Green, Paul S. Smith, Robert A. Cameron, Sara L. Ellison, Tom Aldcroft, Wayne Barkhouse

arxiv:1204.5148 v2 · 2012-04-23 · 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{ZA4VALYTIGKLOSYTD6JE7HYOB7}

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	2026-05-18T01:57:47.201672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c839502f134194b74b131f924f9f0e0feba31c0813acd4b9846454c87b61e38f

Aliases

arxiv: 1204.5148 · arxiv_version: 1204.5148v2 · doi: 10.48550/arxiv.1204.5148 · pith_short_12: ZA4VALYTIGKL · pith_short_16: ZA4VALYTIGKLOSYT · pith_short_8: ZA4VALYT

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/ZA4VALYTIGKLOSYTD6JE7HYOB7 \
  | 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: c839502f134194b74b131f924f9f0e0feba31c0813acd4b9846454c87b61e38f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e29ebbf6a89089230656c07a9eeaabbacd3ba97fd1b39891c7b45d5b2ae2e9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-23T19:21:49Z",
    "title_canon_sha256": "e6068231c49a07241200dd0a1b6a4ec7b2c956eff08512b773e3965875e58bee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5148",
    "kind": "arxiv",
    "version": 2
  }
}