Pith Number

pith:MUAGG2JY

pith:2009:MUAGG2JYSZRFPXYR7T6JHKTYHR

not attested not anchored not stored refs pending

Star forming galaxies in the Hercules cluster: Halpha imaging of A2151

B. Cedres, D. Reverte, J. Hernandez-Fernandez, J. Iglesias-Paramo, J.M. Vilchez, V. Petropolou

arxiv:0907.1370 v1 · 2009-07-08 · 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{MUAGG2JYSZRFPXYR7T6JHKTYHR}

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	2026-05-18T02:13:04.502056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6500636938966257df11fcfc93aa783c5534dd16a05c575e0a16676887cc22b2

Aliases

arxiv: 0907.1370 · arxiv_version: 0907.1370v1 · doi: 10.48550/arxiv.0907.1370 · pith_short_12: MUAGG2JYSZRF · pith_short_16: MUAGG2JYSZRFPXYR · pith_short_8: MUAGG2JY

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/MUAGG2JYSZRFPXYR7T6JHKTYHR \
  | 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: 6500636938966257df11fcfc93aa783c5534dd16a05c575e0a16676887cc22b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3d27c243864d3966e7b76fe1a2a71007479913a31b60d90c0bc418ccc7467f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-08T09:38:24Z",
    "title_canon_sha256": "6f4239129a6c204f6aab9bd1d383c43788a6baa8624e0012617ea090ae0573c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1370",
    "kind": "arxiv",
    "version": 1
  }
}