Pith Number

pith:NNGFN3NL

pith:2013:NNGFN3NLYCQW7ERZX2CYDJKXQK

not attested not anchored not stored refs pending

The IMACS Cluster Building Survey. III. The Star Formation Histories of Field Galaxies

Alan Dressler, Augustus Oemler Jr, Benedetta Vulcani, Bianca M. Poggianti, Jacopo Fritz, Louis Abramson, Michael G. Gladders

arxiv:1303.3916 v1 · 2013-03-15 · 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{NNGFN3NLYCQW7ERZX2CYDJKXQK}

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	2026-05-18T01:51:06.567379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b4c56edabc0a16f9239be8581a5578290477d3ae30d6f214f57f5a7da670fb3

Aliases

arxiv: 1303.3916 · arxiv_version: 1303.3916v1 · doi: 10.48550/arxiv.1303.3916 · pith_short_12: NNGFN3NLYCQW · pith_short_16: NNGFN3NLYCQW7ERZ · pith_short_8: NNGFN3NL

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/NNGFN3NLYCQW7ERZX2CYDJKXQK \
  | 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: 6b4c56edabc0a16f9239be8581a5578290477d3ae30d6f214f57f5a7da670fb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21e7b5c9b1c4d75b7b07272613c8a41099b599078fe174faeedfe35cb4e1931b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-15T22:21:03Z",
    "title_canon_sha256": "0b08db5e7222646d73aeb52531cea4513c187fc60313e6680569e65b9bf4a964"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3916",
    "kind": "arxiv",
    "version": 1
  }
}