Pith Number

pith:IKZEI7WB

pith:2014:IKZEI7WBVHQB2PPYC4DPD4MBKO

not attested not anchored not stored refs pending

Clumping factors of HII, HeII and HeIII

2, (2) MPA, 3), (3) CAASTRO), Akila Jeeson-Daniel (1, Benedetta Ciardi (2), Luca Graziani (2) ((1) Melbourne

arxiv:1407.5996 v1 · 2014-07-22 · 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{IKZEI7WBVHQB2PPYC4DPD4MBKO}

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	2026-05-18T01:42:32.960682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b2447ec1a9e01d3df81706f1f18153816f0ab0262ce60df3dc23e7c9b85d97

Aliases

arxiv: 1407.5996 · arxiv_version: 1407.5996v1 · doi: 10.48550/arxiv.1407.5996 · pith_short_12: IKZEI7WBVHQB · pith_short_16: IKZEI7WBVHQB2PPY · pith_short_8: IKZEI7WB

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/IKZEI7WBVHQB2PPYC4DPD4MBKO \
  | 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: 42b2447ec1a9e01d3df81706f1f18153816f0ab0262ce60df3dc23e7c9b85d97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5f7a80014a173ab806f415d17fdba6ac6d4a49d6cd94cbb12b4842c253f006e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-07-22T20:00:04Z",
    "title_canon_sha256": "c605186e1f023d90cf5e47efa150874f40ebe979838d4d6c8c451807e1657254"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5996",
    "kind": "arxiv",
    "version": 1
  }
}