Pith Number

pith:WUYJRIAU

pith:2002:WUYJRIAUD3MBZLA24AW7RXQHNM

not attested not anchored not stored refs pending

The enrichment history of the intergalactic medium: O VI in Ly-alpha forest systems at redshift z ~ 2

Cambridge), Joop Schaye (IAS, Princeton), Robert F. Carswell (IoA, Tae-Sun Kim (ESO)

arxiv:astro-ph/0204370 v2 · 2002-04-22 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUYJRIAUD3MBZLA24AW7RXQHNM}

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	2026-07-04T16:29:53.763497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b53098a0141ed81cac1ae02df8de076b26182abea7bf30fccef0fa3648ed25d4

Aliases

arxiv: astro-ph/0204370 · arxiv_version: astro-ph/0204370v2 · doi: 10.48550/arxiv.astro-ph/0204370 · pith_short_12: WUYJRIAUD3MB · pith_short_16: WUYJRIAUD3MBZLA2 · pith_short_8: WUYJRIAU

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/WUYJRIAUD3MBZLA24AW7RXQHNM \
  | 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: b53098a0141ed81cac1ae02df8de076b26182abea7bf30fccef0fa3648ed25d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a28d5b375358d5bf61061b833bd9b397b4a9bdd541f26d8ca29847a5768fb30",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-04-22T20:47:21Z",
    "title_canon_sha256": "3406769427e80aba4276acdd46304517bc531539b3cf19e119f49b4c41be6bd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0204370",
    "kind": "arxiv",
    "version": 2
  }
}