Pith Number

pith:YUZKFJSZ

pith:2002:YUZKFJSZQARQH6GNLTCUYEKLQG

not attested not anchored not stored refs pending

The XMM Large Scale Structure Survey: Scientific Motivation and First Observations

(2) IoA, A. Refregier (2) ((1) CEA/Saclay, Cambridge), I. Valtchanov (1), M. Pierre (1)

arxiv:astro-ph/0202117 v2 · 2002-02-06 · 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{YUZKFJSZQARQH6GNLTCUYEKLQG}

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	2026-07-04T14:11:53.236860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c532a2a659802303f8cd5cc54c114b81b454f13ee9852c9d35b0e99d99f02c1b

Aliases

arxiv: astro-ph/0202117 · arxiv_version: astro-ph/0202117v2 · doi: 10.48550/arxiv.astro-ph/0202117 · pith_short_12: YUZKFJSZQARQ · pith_short_16: YUZKFJSZQARQH6GN · pith_short_8: YUZKFJSZ

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/YUZKFJSZQARQH6GNLTCUYEKLQG \
  | 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: c532a2a659802303f8cd5cc54c114b81b454f13ee9852c9d35b0e99d99f02c1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0842ed122ded1e7edbb76d7f07fbd5d39c1d5699e02bddc64f177b1e4aa7a974",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-02-06T08:51:49Z",
    "title_canon_sha256": "970d0b0c3536d3d280110f2098475d689cb7b1722bad143e6df6f0743d0bc191"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0202117",
    "kind": "arxiv",
    "version": 2
  }
}