Pith Number

pith:WKYJZBDY

pith:2013:WKYJZBDYHUFXTDIK3G5RFRKOCB

not attested not anchored not stored refs pending

On estimating cosmology-dependent covariance matrices

Christopher B. Morrison, Michael D. Schneider

arxiv:1304.7789 v1 · 2013-04-29 · 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{WKYJZBDYHUFXTDIK3G5RFRKOCB}

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	2026-05-18T01:50:14.397424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2b09c84783d0b798d0ad9bb12c54e106b4726fad0805c5ac9e2c589b90953a8

Aliases

arxiv: 1304.7789 · arxiv_version: 1304.7789v1 · doi: 10.48550/arxiv.1304.7789 · pith_short_12: WKYJZBDYHUFX · pith_short_16: WKYJZBDYHUFXTDIK · pith_short_8: WKYJZBDY

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/WKYJZBDYHUFXTDIK3G5RFRKOCB \
  | 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: b2b09c84783d0b798d0ad9bb12c54e106b4726fad0805c5ac9e2c589b90953a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55c9e7ad9ad988550108e093cba5d74111428cfafd183b7fa2e3f0903c78b52f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-29T20:04:34Z",
    "title_canon_sha256": "eca9821fb81e9d6c977914bc17ba8c3f9d4946e26de5ff7c3a00fb2825b1fcda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7789",
    "kind": "arxiv",
    "version": 1
  }
}