Pith Number

pith:WHR63ZVF

pith:2015:WHR63ZVF7VLVAV35YW625ZV2TC

not attested not anchored not stored refs pending

Estimating the power spectrum covariance matrix with fewer mock samples

David W. Pearson, Lado Samushia

arxiv:1509.00064 v1 · 2015-08-31 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WHR63ZVF7VLVAV35YW625ZV2TC}

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	2026-05-18T01:21:31.345459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1e3ede6a5fd5750577dc5bdaee6ba98a165a1496b699562672658e87d391f87

Aliases

arxiv: 1509.00064 · arxiv_version: 1509.00064v1 · doi: 10.48550/arxiv.1509.00064 · pith_short_12: WHR63ZVF7VLV · pith_short_16: WHR63ZVF7VLVAV35 · pith_short_8: WHR63ZVF

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/WHR63ZVF7VLVAV35YW625ZV2TC \
  | 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: b1e3ede6a5fd5750577dc5bdaee6ba98a165a1496b699562672658e87d391f87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc5c2122da3e304319ad27e99096af0eeef11581059e908a268af6c5c5c99df2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-08-31T20:50:29Z",
    "title_canon_sha256": "8cc8c7c82139ee75f228bbf91c1564a04388dee2dc75672678ceade0df1f0142"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00064",
    "kind": "arxiv",
    "version": 1
  }
}