Pith Number

pith:CQRZPAAQ

pith:2015:CQRZPAAQIBCGEROCTGCDXZC465

not attested not anchored not stored refs pending

On the Physical Requirements for a Pre-Reionization Origin of the Unresolved Near-Infrared Background

Alexander Kashlinsky, K\'ari Helgason, Massimo Ricotti, Volker Bromm

arxiv:1505.07226 v2 · 2015-05-27 · 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{CQRZPAAQIBCGEROCTGCDXZC465}

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	2026-05-18T01:27:23.642102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

142397801040446245c299843be45cf76bdc37aed5ea2e8fda62c63ae8b40fb6

Aliases

arxiv: 1505.07226 · arxiv_version: 1505.07226v2 · doi: 10.48550/arxiv.1505.07226 · pith_short_12: CQRZPAAQIBCG · pith_short_16: CQRZPAAQIBCGEROC · pith_short_8: CQRZPAAQ

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/CQRZPAAQIBCGEROCTGCDXZC465 \
  | 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: 142397801040446245c299843be45cf76bdc37aed5ea2e8fda62c63ae8b40fb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27a1da18c4031baa20798f0882faf8f2bec1877c25f815cfc2cedecd11ed9b54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-05-27T08:50:11Z",
    "title_canon_sha256": "181a4257c5b9229ea9e6c5012540be4d203c212cda1789d49c82440498af427b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07226",
    "kind": "arxiv",
    "version": 2
  }
}