Pith Number

pith:NWDHEVHP

pith:2011:NWDHEVHP5ZNIAYQG5GMSKXN72L

not attested not anchored not stored refs pending

Light/Mass Offsets in the Lensing Cluster Abell 3827: Evidence for Collisional Dark Matter?

Liliya L.R. Williams, Prasenjit Saha

arxiv:1102.3943 v2 · 2011-02-19 · 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{NWDHEVHP5ZNIAYQG5GMSKXN72L}

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	2026-05-18T02:03:07.598406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d867254efee5a806206e999255dbfd2c6e1a0ed63ec93efb0e50d266ca156d5

Aliases

arxiv: 1102.3943 · arxiv_version: 1102.3943v2 · doi: 10.48550/arxiv.1102.3943 · pith_short_12: NWDHEVHP5ZNI · pith_short_16: NWDHEVHP5ZNIAYQG · pith_short_8: NWDHEVHP

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/NWDHEVHP5ZNIAYQG5GMSKXN72L \
  | 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: 6d867254efee5a806206e999255dbfd2c6e1a0ed63ec93efb0e50d266ca156d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d282fd28b55327d4ace97f8e087121dbc32600dff54d5393a2b59258749aa69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-19T01:01:42Z",
    "title_canon_sha256": "5cd628919e842d3d99e6faae1308b4bd886dca1a23d2765ab9a73e2701eb49d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3943",
    "kind": "arxiv",
    "version": 2
  }
}