Pith Number

pith:GWZK44UA

pith:2013:GWZK44UABGGUQ2OBZ7PIJJJX4Q

not attested not anchored not stored refs pending

The case against large intensity fluctuations in the z ~ 2.5 HeII Lyman-alpha forest

Gabor Worseck, Matthew McQuinn

arxiv:1306.4985 v2 · 2013-06-20 · 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{GWZK44UABGGUQ2OBZ7PIJJJX4Q}

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	2026-05-18T01:49:14.185302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35b2ae7280098d4869c1cfde84a537e430ae61ae2ee68c6448c5eaad4aed1359

Aliases

arxiv: 1306.4985 · arxiv_version: 1306.4985v2 · doi: 10.48550/arxiv.1306.4985 · pith_short_12: GWZK44UABGGU · pith_short_16: GWZK44UABGGUQ2OB · pith_short_8: GWZK44UA

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/GWZK44UABGGUQ2OBZ7PIJJJX4Q \
  | 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: 35b2ae7280098d4869c1cfde84a537e430ae61ae2ee68c6448c5eaad4aed1359

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06a4bf12cda96658b723fcb61faf4f304f4d19d6019d31294607d14a3f040de2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-20T20:00:04Z",
    "title_canon_sha256": "afbcfd29f9cccfef417bfda63da2031d46114357dee53ba59e8d59a85d54cc5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4985",
    "kind": "arxiv",
    "version": 2
  }
}