Pith Number

pith:PVZ47QID

pith:2011:PVZ47QIDK4ZJRYVZ3CJIATE4UQ

not attested not anchored not stored refs pending

HST-ACS photometry of the isolated dwarf galaxy VV124=UGC4879. Detection of the Blue Horizontal Branch and identification of two young star clusters

M. Bellazzini (INAF-Oabo), S. Galleti (INAF-Oabo), S. Perina (INAF-OABO), T. OOsterloo (ASTRON / Kapteyn Inst.)

arxiv:1107.2556 v1 · 2011-07-13 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PVZ47QIDK4ZJRYVZ3CJIATE4UQ}

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	2026-05-18T02:01:19.077447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d73cfc103573298e2b9d892804c9ca41be608ec684bf2b78270d028ac36fddc

Aliases

arxiv: 1107.2556 · arxiv_version: 1107.2556v1 · doi: 10.48550/arxiv.1107.2556 · pith_short_12: PVZ47QIDK4ZJ · pith_short_16: PVZ47QIDK4ZJRYVZ · pith_short_8: PVZ47QID

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/PVZ47QIDK4ZJRYVZ3CJIATE4UQ \
  | 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: 7d73cfc103573298e2b9d892804c9ca41be608ec684bf2b78270d028ac36fddc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6abeef482fcc71fbeb41cc0cc7ffe1420fe1b4eaf4bfdd00ca02ad4f48bc0ffe",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-13T14:09:22Z",
    "title_canon_sha256": "0a935c1108638925b1b86f5ccffe975d0d2c58a527e2e3d9670ee8a6afc3df7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2556",
    "kind": "arxiv",
    "version": 1
  }
}