Pith Number

pith:VO5HSVDD

pith:2017:VO5HSVDDZC4BW6GK6EYKQATP6B

not attested not anchored not stored refs pending

Galaxy 2-Point Covariance Matrix Estimation for Next Generation Surveys

Cullan Howlett, Will J. Percival

arxiv:1709.03057 v2 · 2017-09-10 · 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{VO5HSVDDZC4BW6GK6EYKQATP6B}

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	2026-05-18T00:32:38.999665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abba795463c8b81b78caf130a8026ff04ed3b34fc3af68241160d562d182b172

Aliases

arxiv: 1709.03057 · arxiv_version: 1709.03057v2 · doi: 10.48550/arxiv.1709.03057 · pith_short_12: VO5HSVDDZC4B · pith_short_16: VO5HSVDDZC4BW6GK · pith_short_8: VO5HSVDD

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/VO5HSVDDZC4BW6GK6EYKQATP6B \
  | 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: abba795463c8b81b78caf130a8026ff04ed3b34fc3af68241160d562d182b172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e42da11a53229a61a24019dae19a9b8ce0b79b5a0276fbecbeeb750e376d10d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-09-10T06:58:25Z",
    "title_canon_sha256": "69ccda3e786cb97ddf699cd2596b61c988cf21cbc69f1fd023c2bd9c7fa407f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03057",
    "kind": "arxiv",
    "version": 2
  }
}