Pith Number

pith:4QQPNJTP

pith:2001:4QQPNJTPOUVWIHSIE5Y44J6OTP

not attested not anchored not stored refs pending

The Red-Sequence Cluster Survey: first lensing results

Henk Hoekstra, H.K.C. Yee, Michael D. Gladders

arxiv:astro-ph/0109514 v1 · 2001-09-27 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QQPNJTPOUVWIHSIE5Y44J6OTP}

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	2026-07-04T14:11:30.595706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e420f6a66f752b641e482771ce27ce9bd4f67b80f54615d3efb816411b07bd5f

Aliases

arxiv: astro-ph/0109514 · arxiv_version: astro-ph/0109514v1 · doi: 10.48550/arxiv.astro-ph/0109514 · pith_short_12: 4QQPNJTPOUVW · pith_short_16: 4QQPNJTPOUVWIHSI · pith_short_8: 4QQPNJTP

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/4QQPNJTPOUVWIHSIE5Y44J6OTP \
  | 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: e420f6a66f752b641e482771ce27ce9bd4f67b80f54615d3efb816411b07bd5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5f783aaf75f14079f056f2277d23b7f57e6f7e0482774a23b08286b56fe47a2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-27T15:09:00Z",
    "title_canon_sha256": "56914670521465e8f95ffd84ad6e54346152a3fa6b10d3463549fddc2d4374e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109514",
    "kind": "arxiv",
    "version": 1
  }
}