Pith Number

pith:IKFMMH2L

pith:2009:IKFMMH2L4TOAHQAKXW3XPJACRJ

not attested not anchored not stored refs pending

New Multiply-Lensed Galaxies Identified in ACS/NIC3 Observations of Cl0024+1654 Using an Improved Mass Model

Adi Zitrin, Bego\~na Ascaso, Dan Coe, Elinor Medezinski, Holland Ford, James Jee, Keiichi Umetsu, Larry Bradley, Narciso Ben\'itez, Tom Broadhurst, Wei Zheng, Yoel Rephaeli

arxiv:0902.3971 v2 · 2009-02-23 · 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{IKFMMH2L4TOAHQAKXW3XPJACRJ}

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	2026-05-18T03:19:12.133182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

428ac61f4be4dc03c00abdb777a4028a6f0b6322b38409cdf4a78258b3b610bf

Aliases

arxiv: 0902.3971 · arxiv_version: 0902.3971v2 · doi: 10.48550/arxiv.0902.3971 · pith_short_12: IKFMMH2L4TOA · pith_short_16: IKFMMH2L4TOAHQAK · pith_short_8: IKFMMH2L

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/IKFMMH2L4TOAHQAKXW3XPJACRJ \
  | 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: 428ac61f4be4dc03c00abdb777a4028a6f0b6322b38409cdf4a78258b3b610bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e4a5eb0239bed3e278dd8e2028cb8a77e367853d18e8e3c2f4e822e5a3c7d1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-02-23T18:38:30Z",
    "title_canon_sha256": "719530bd01a02520650a317a9d5b87d433ed574bfa8a984c218cff8ffe384265"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3971",
    "kind": "arxiv",
    "version": 2
  }
}