Pith Number

pith:HDBPUVLQ

pith:1997:HDBPUVLQLW2J23AY4O6S2LSDPM

not attested not anchored not stored refs pending

Towards Optimal Measurement of Power Spectra I: Minimum Variance Pair Weighting and the Fisher Matrix

A. J. S. Hamilton

arxiv:astro-ph/9701008 v1 · 1997-01-04 · 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{HDBPUVLQLW2J23AY4O6S2LSDPM}

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	2026-05-18T01:40:18.464929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38c2fa55705db49d6c18e3bd2d2e437b3d4923bb6a64bd23647f5749f7958538

Aliases

arxiv: astro-ph/9701008 · arxiv_version: astro-ph/9701008v1 · doi: 10.48550/arxiv.astro-ph/9701008 · pith_short_12: HDBPUVLQLW2J · pith_short_16: HDBPUVLQLW2J23AY · pith_short_8: HDBPUVLQ

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/HDBPUVLQLW2J23AY4O6S2LSDPM \
  | 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: 38c2fa55705db49d6c18e3bd2d2e437b3d4923bb6a64bd23647f5749f7958538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2cc6389b3202df0a11aace305dff2091b4c835276e99371e2a3ecece9f85483",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-01-04T00:00:41Z",
    "title_canon_sha256": "dca41a736f82afa8c4418ee406f0e355fe759cc529189ef2432802cf109b1641"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9701008",
    "kind": "arxiv",
    "version": 1
  }
}