Pith Number

pith:KI27U4QE

pith:2004:KI27U4QEAYLL4N7CIKR5UF4BJ5

not attested not anchored not stored refs pending

Ultra Compact Dwarf galaxies in Abell 1689: a photometric study with the ACS

A.R. Martel, B. Holden, C. Gronwall, C.J. Burrows, D.A. Golimowski, D. Coe, D.R. Ardila, E.S. Cheng, F. Bartko, F. Menanteau, G.D. Illingworth, G.F. Hartig, G.K. Miley, G.R. Meurer, H.D. Tran, H. Ford, J.E. Krist, J.P. Blakeslee, K. Zekser, L. Infante, M. Clampin, M. Franx, M.P. Lesser, M. Postman, M. Sirianni, N. Benitez, N. Homeier, N.J.G. Cross, P.D. Feldman, P. Rosati, R.A. Brown, R.A. Kimble, R.J. Bouwens, R.L. White, S. Mieske, T. Goto, T.J. Broadhurst, W.B. Sparks, W. Zheng, Z.I. Tsvetanov

arxiv:astro-ph/0406613 v1 · 2004-06-28 · 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{KI27U4QEAYLL4N7CIKR5UF4BJ5}

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	2026-07-04T16:44:11.984452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5235fa72040616be37e242a3da17814f6a4260664cd26d06031ddbb294c1c7c7

Aliases

arxiv: astro-ph/0406613 · arxiv_version: astro-ph/0406613v1 · doi: 10.48550/arxiv.astro-ph/0406613 · pith_short_12: KI27U4QEAYLL · pith_short_16: KI27U4QEAYLL4N7C · pith_short_8: KI27U4QE

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/KI27U4QEAYLL4N7CIKR5UF4BJ5 \
  | 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: 5235fa72040616be37e242a3da17814f6a4260664cd26d06031ddbb294c1c7c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43ee709f73d12587e3aa21a963378c452b54c2b947a7b1e38f5faebfec246c4a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-28T08:34:37Z",
    "title_canon_sha256": "5ead05f0eadb4236a2f40a473d2c3626af6ea441919026440fb5e90865756d85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406613",
    "kind": "arxiv",
    "version": 1
  }
}