Pith Number

pith:6SUO4ZO2

pith:2001:6SUO4ZO2OOBDTN3OE5JFCANZRO

not attested not anchored not stored refs pending

A New Measurement of the Primordial Abundance of Deuterium: Toward Convergence with the Baryon Density from the CMB?

Cambridge) David V. Bowen (Princeton University Observatory), Max Pettini (Institute of Astronomy

arxiv:astro-ph/0104474 v2 · 2001-04-30 · 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{6SUO4ZO2OOBDTN3OE5JFCANZRO}

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.

Cited by

1 paper in Pith

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Receipt and verification

First computed	2026-07-04T16:23:18.818006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4a8ee65da738239b76e27525101b98b840d401b556f5eec9905fcb90a9138c0

Aliases

arxiv: astro-ph/0104474 · arxiv_version: astro-ph/0104474v2 · doi: 10.48550/arxiv.astro-ph/0104474 · pith_short_12: 6SUO4ZO2OOBD · pith_short_16: 6SUO4ZO2OOBDTN3O · pith_short_8: 6SUO4ZO2

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/6SUO4ZO2OOBDTN3OE5JFCANZRO \
  | 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: f4a8ee65da738239b76e27525101b98b840d401b556f5eec9905fcb90a9138c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d5562f471e122cae61a4b1c31039dfc637424e462b5802cf66bac2d647a7a9b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-30T00:25:17Z",
    "title_canon_sha256": "a467ab083f31b02987abb93c06dafa5b1d15d4a6ed93b7b008bfbfd40097fa4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104474",
    "kind": "arxiv",
    "version": 2
  }
}