Pith Number

pith:R4Z6W4PZ

pith:2014:R4Z6W4PZ344N6YHPW3CM4VN237

not attested not anchored not stored refs pending

Probing reionization using quasar near-zones at redshift z ~ 6

Hamsa Padmanabhan, R. Srianand, T. Roy Choudhury

arxiv:1403.0221 v2 · 2014-03-02 · 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{R4Z6W4PZ344N6YHPW3CM4VN237}

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	2026-05-18T02:45:23.198589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f33eb71f9df38df60efb6c4ce55badfc6888025fcb8485cfed6dedee8dda6c2

Aliases

arxiv: 1403.0221 · arxiv_version: 1403.0221v2 · doi: 10.48550/arxiv.1403.0221 · pith_short_12: R4Z6W4PZ344N · pith_short_16: R4Z6W4PZ344N6YHP · pith_short_8: R4Z6W4PZ

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/R4Z6W4PZ344N6YHPW3CM4VN237 \
  | 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: 8f33eb71f9df38df60efb6c4ce55badfc6888025fcb8485cfed6dedee8dda6c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20901ac7f14891c440d843799aec672001ef6a6bcc27ea30fcd88a2a31973b86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-03-02T15:19:25Z",
    "title_canon_sha256": "18a3fe6696ef13c1849ec0358492ac5d977046fa86bb5e3597e71ea1a59c9fd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.0221",
    "kind": "arxiv",
    "version": 2
  }
}