Pith Number

pith:QOBZRRYO

pith:2015:QOBZRRYO365TUKCCZVFRF3PHVU

not attested not anchored not stored refs pending

Cosmic Reionization Study : Principle Component Analysis After Planck

Hong Li, Si-Yu Li, Xinmin Zhang, Yang Liu, Yong-Ping Li

arxiv:1512.07394 v1 · 2015-12-23 · 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{QOBZRRYO365TUKCCZVFRF3PHVU}

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	2026-05-18T01:19:25.437143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

838398c70edfbb3a2842cd4b12ede7ad0bb45bd066dfa54c9e5649b712c00880

Aliases

arxiv: 1512.07394 · arxiv_version: 1512.07394v1 · doi: 10.48550/arxiv.1512.07394 · pith_short_12: QOBZRRYO365T · pith_short_16: QOBZRRYO365TUKCC · pith_short_8: QOBZRRYO

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/QOBZRRYO365TUKCCZVFRF3PHVU \
  | 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: 838398c70edfbb3a2842cd4b12ede7ad0bb45bd066dfa54c9e5649b712c00880

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a14ec81f5e450898fcf27d1ec96ee050ae55ef775694be3836ef5f694cba24d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-12-23T08:59:47Z",
    "title_canon_sha256": "f6972be3305bfc79605b860dbfc411406e0cd970096b69d184eb0883b6cbb4ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.07394",
    "kind": "arxiv",
    "version": 1
  }
}