Pith Number

pith:NSFBLAJO

pith:2014:NSFBLAJOU3SOT3RZ37JWRGGDLK

not attested not anchored not stored refs pending

Mid-Infrared Selected Quasars I: Virial Black Hole Mass and Eddington Ratios

Alain Omont, Belinda J. Wilkes, Casey Papovich, Christopher N. A. Willmer, Giovanni G. Fazio, Jacqueline Bergeron, Jia-Sheng Huang, Martin Elvis, Y. Sophia Dai

arxiv:1406.4477 v1 · 2014-06-17 · astro-ph.GA · 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{NSFBLAJOU3SOT3RZ37JWRGGDLK}

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	2026-05-18T01:42:55.730394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c8a15812ea6e4e9ee39dfd36898c35a873315f2bf795cef837585edd1d004d4

Aliases

arxiv: 1406.4477 · arxiv_version: 1406.4477v1 · doi: 10.48550/arxiv.1406.4477 · pith_short_12: NSFBLAJOU3SO · pith_short_16: NSFBLAJOU3SOT3RZ · pith_short_8: NSFBLAJO

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/NSFBLAJOU3SOT3RZ37JWRGGDLK \
  | 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: 6c8a15812ea6e4e9ee39dfd36898c35a873315f2bf795cef837585edd1d004d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65e50937b4fdb16dd3fb5c1a2634f0a658c9382e7f8eebb69a4eca5b6f543f1f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-06-17T19:00:15Z",
    "title_canon_sha256": "00b088edff053fcc2bbdb3a8328e545f6b5f0f7684338bc468debb7e1ca8e393"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4477",
    "kind": "arxiv",
    "version": 1
  }
}