Pith Number

pith:3JKNZIGE

pith:2012:3JKNZIGEDV6OA4OI4I7UIEWGQH

not attested not anchored not stored refs pending

Massive and Newly Dead: Discovery of a Significant Population of Galaxies with High Velocity Dispersions and Strong Balmer Lines at z~1.5 from Deep Keck Spectra and HST/WFC3 Imaging

Jesse van de Sande, Marijn Franx, Mariska Kriek, Pieter van Dokkum, Rachel Bezanson

arxiv:1210.7236 v1 · 2012-10-26 · 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{3JKNZIGEDV6OA4OI4I7UIEWGQH}

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	2026-05-18T01:53:36.991431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da54dca0c41d7ce071c8e23f4412c681fa10554856bee1ad67a6766d0c969650

Aliases

arxiv: 1210.7236 · arxiv_version: 1210.7236v1 · doi: 10.48550/arxiv.1210.7236 · pith_short_12: 3JKNZIGEDV6O · pith_short_16: 3JKNZIGEDV6OA4OI · pith_short_8: 3JKNZIGE

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/3JKNZIGEDV6OA4OI4I7UIEWGQH \
  | 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: da54dca0c41d7ce071c8e23f4412c681fa10554856bee1ad67a6766d0c969650

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed24bdf6fc6c2726335a8232fc65daf769ae228b45b8f5b11a5c413ef0f41f8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-26T20:00:00Z",
    "title_canon_sha256": "68a98984b8c7e67829d9f8505239efd33008d95826f79986f043a3bccb1afd03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7236",
    "kind": "arxiv",
    "version": 1
  }
}