Pith Number

pith:NIDHJNGU

pith:2011:NIDHJNGUS5TRJCYLGJYVO6W7OB

not attested not anchored not stored refs pending

The Faint End of the Quasar Luminosity Function at z~4: Implications for Ionization of the Intergalactic Medium and Cosmic Downsizing

(2) Caltech, (3) JPL, (4) NOAO), Arjun Dey (4), Buell T. Jannuzi (4), Daniel Stern (3), Eilat Glikman (1), Kyoung-Soo Lee (1) ((1) Yale University, S. G. Djorgovski (2)

arxiv:1101.0537 v1 · 2011-01-03 · 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{NIDHJNGUS5TRJCYLGJYVO6W7OB}

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	2026-05-18T02:04:13.858881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a0674b4d49767148b0b3271577adf7048d55959f2dcba86944eb7679c1f583a

Aliases

arxiv: 1101.0537 · arxiv_version: 1101.0537v1 · doi: 10.48550/arxiv.1101.0537 · pith_short_12: NIDHJNGUS5TR · pith_short_16: NIDHJNGUS5TRJCYL · pith_short_8: NIDHJNGU

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/NIDHJNGUS5TRJCYLGJYVO6W7OB \
  | 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: 6a0674b4d49767148b0b3271577adf7048d55959f2dcba86944eb7679c1f583a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8b8dff7f00861a06219ef6e630db528d6597a69f5cee101937fe14243d2a745",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-03T15:14:19Z",
    "title_canon_sha256": "ba4d55b9481b420579ce12d931719d472bdd7f8311b53ce327d89b37add69949"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0537",
    "kind": "arxiv",
    "version": 1
  }
}