Pith Number

pith:QEL4JKVT

pith:2012:QEL4JKVTXXCKUJP6357GPSYZWZ

not attested not anchored not stored refs pending

Putting the Precision in Precision Cosmology: How accurate should your data covariance matrix be?

Andy Taylor, Benjamin Joachimi, Thomas Kitching

arxiv:1212.4359 v1 · 2012-12-18 · 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{QEL4JKVTXXCKUJP6357GPSYZWZ}

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

2 papers in Pith

Fewer simulations, sharper covariances: Reducing mock covariance noise with Zeldovich approximation control variates

Machine-learning applications for weak-lensing cosmology

Receipt and verification

First computed	2026-05-18T01:52:30.982128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8117c4aab3bdc4aa25fedf7e67cb19b67d2ca986e3ab77293ea1a9624f96bbcd

Aliases

arxiv: 1212.4359 · arxiv_version: 1212.4359v1 · doi: 10.48550/arxiv.1212.4359 · pith_short_12: QEL4JKVTXXCK · pith_short_16: QEL4JKVTXXCKUJP6 · pith_short_8: QEL4JKVT

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/QEL4JKVTXXCKUJP6357GPSYZWZ \
  | 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: 8117c4aab3bdc4aa25fedf7e67cb19b67d2ca986e3ab77293ea1a9624f96bbcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbfce31ee0bbf1c5e774a7d0f371da40ab117dcc56fec6ebb9eded68d516b3e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-18T14:28:48Z",
    "title_canon_sha256": "44ae97135a7d6ab4b111a4b16e3165aa5b577c91c61d2c374e30023f9cf3eb69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4359",
    "kind": "arxiv",
    "version": 1
  }
}