Pith Number

pith:HMUO5DRX

pith:2003:HMUO5DRXOEHSDC7Q6GSXFX5A4W

not attested not anchored not stored refs pending

chi^2 and Linear Fits

Andrew Gould (Ohio State)

arxiv:astro-ph/0310577 v1 · 2003-10-20 · 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{HMUO5DRXOEHSDC7Q6GSXFX5A4W}

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

An Alternate Method for Minimizing $\chi^2$

Receipt and verification

First computed	2026-07-04T14:13:07.278649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b28ee8e37710f218bf0f1a572dfa0e5863c7676e93417efbaa415e8ef85e116

Aliases

arxiv: astro-ph/0310577 · arxiv_version: astro-ph/0310577v1 · doi: 10.48550/arxiv.astro-ph/0310577 · pith_short_12: HMUO5DRXOEHS · pith_short_16: HMUO5DRXOEHSDC7Q · pith_short_8: HMUO5DRX

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/HMUO5DRXOEHSDC7Q6GSXFX5A4W \
  | 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: 3b28ee8e37710f218bf0f1a572dfa0e5863c7676e93417efbaa415e8ef85e116

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2892dcc2e1254892480f439c97a77581ea5a432aa2961489d45fd16feefddee",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-20T20:08:11Z",
    "title_canon_sha256": "f963634d0863d5248df64ac835033c290d5d1f2e2beb8e28049135256b28897c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310577",
    "kind": "arxiv",
    "version": 1
  }
}