Pith Number

pith:VD2QIMHD

pith:2026:VD2QIMHDYC42OHOGNAM2R7TBAI

not attested not anchored not stored refs pending

Analytical covariances for catalogue-based pseudo-$C_\ell$s

Andrina Nicola, David Alonso, Elyas Farah, Kevin Wolz, Robert Reischke

arxiv:2607.14843 v1 · 2026-07-16 · 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{VD2QIMHDYC42OHOGNAM2R7TBAI}

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	2026-07-17T01:21:34.017844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8f50430e3c0b9a71dc66819a8fe61021fc057ee289f98f80acd57213816db87

Aliases

arxiv: 2607.14843 · arxiv_version: 2607.14843v1 · doi: 10.48550/arxiv.2607.14843 · pith_short_12: VD2QIMHDYC42 · pith_short_16: VD2QIMHDYC42OHOG · pith_short_8: VD2QIMHD

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/VD2QIMHDYC42OHOGNAM2R7TBAI \
  | 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: a8f50430e3c0b9a71dc66819a8fe61021fc057ee289f98f80acd57213816db87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9321235483be529d25c81a79a76bf2486adf758a3b52f5631febbcf9e3a36670",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-07-16T11:11:17Z",
    "title_canon_sha256": "bf91e5d57a1ae43ac178d4273221e9ef646c28a1e00aa803c2e0fdbd220beb08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.14843",
    "kind": "arxiv",
    "version": 1
  }
}