Pith Number

pith:XTP44ZT5

pith:2009:XTP44ZT5AAXTFPART6QOPUIYA2

not attested not anchored not stored refs pending

Abell 370 revisited: refurbished Hubble imaging of the first strong lensing cluster

Alastair Edge (Durham), Dark Cosmology Centre), Eric Jullo (JPL), Jean-Paul Kneib (OAMP), Johan Richard (Durham), Marceau Limousin (OAMP

arxiv:0910.5553 v2 · 2009-10-29 · 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{XTP44ZT5AAXTFPART6QOPUIYA2}

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	2026-05-18T02:11:01.888525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcdfce667d002f32bc119fa0e7d118068e376c9327095a336025ac1a56869f8a

Aliases

arxiv: 0910.5553 · arxiv_version: 0910.5553v2 · doi: 10.48550/arxiv.0910.5553 · pith_short_12: XTP44ZT5AAXT · pith_short_16: XTP44ZT5AAXTFPAR · pith_short_8: XTP44ZT5

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/XTP44ZT5AAXTFPART6QOPUIYA2 \
  | 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: bcdfce667d002f32bc119fa0e7d118068e376c9327095a336025ac1a56869f8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f12227a715fae48175f342ecd8ec80e8c40b3fdded40c236475d7a0c814c3e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-29T19:53:59Z",
    "title_canon_sha256": "1a8d0490a9477b953086e4e2652272910842fd3f811df3435066f0cc34b99144"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5553",
    "kind": "arxiv",
    "version": 2
  }
}