Pith Number

pith:OIFQCXHR

pith:2016:OIFQCXHRZ5R7DAKGQM76PTUMCK

not attested not anchored not stored refs pending

The Spectral Slope and Escape Fraction of Bright Quasars at $z \sim 3.8$: the Contribution to the Cosmic UV Background

1), 2), Eros Vanzella (4), Fabio Fontanot (1), Luisa Maria Serrano (3, Pierluigi Monaco (3) ((1) INAF - OATs (2) INFN (3) UNITS (4) INAF - OABo), Rajesh R. Koothrappali (1), Stefano Cristiani (1

arxiv:1603.09351 v2 · 2016-03-30 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OIFQCXHRZ5R7DAKGQM76PTUMCK}

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.

Cited by

1 paper in Pith

Life After the Quasar: Overmassive Black Holes and Remnant Ionised Bubbles in and Around Two z~6.6 Galaxies

Receipt and verification

First computed	2026-05-18T01:07:20.731653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

720b015cf1cf63f18146833fe7ce8c12b29a220f3e0693be14c068c5b699078e

Aliases

arxiv: 1603.09351 · arxiv_version: 1603.09351v2 · doi: 10.48550/arxiv.1603.09351 · pith_short_12: OIFQCXHRZ5R7 · pith_short_16: OIFQCXHRZ5R7DAKG · pith_short_8: OIFQCXHR

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/OIFQCXHRZ5R7DAKGQM76PTUMCK \
  | 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: 720b015cf1cf63f18146833fe7ce8c12b29a220f3e0693be14c068c5b699078e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f0f42f5ba901a120c6a1149777dc8ca0c4a91df57232819c7c2f225b7324f47",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-03-30T20:00:06Z",
    "title_canon_sha256": "bc2580a81cc35e3c5e7d44308759fe9c423a82b757f8156d037d6d2f0a6fe1a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.09351",
    "kind": "arxiv",
    "version": 2
  }
}