Pith Number

pith:GH5N4F4K

pith:2009:GH5N4F4K7V3IO7ULXAAGPNMGR3

not attested not anchored not stored refs pending

A high stellar velocity dispersion for a compact massive galaxy at z=2.2

Marijn Franx, Mariska Kriek, Pieter G. van Dokkum

arxiv:0906.2778 v1 · 2009-06-15 · 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{GH5N4F4K7V3IO7ULXAAGPNMGR3}

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	2026-05-18T02:13:19.945794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31fade178afd76877e8bb80067b5868edcebc9812d63e5b323fd0e60d01d2077

Aliases

arxiv: 0906.2778 · arxiv_version: 0906.2778v1 · doi: 10.48550/arxiv.0906.2778 · pith_short_12: GH5N4F4K7V3I · pith_short_16: GH5N4F4K7V3IO7UL · pith_short_8: GH5N4F4K

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/GH5N4F4K7V3IO7ULXAAGPNMGR3 \
  | 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: 31fade178afd76877e8bb80067b5868edcebc9812d63e5b323fd0e60d01d2077

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01bfe8dcfa6d03937d918048dd67ca535084b511812e4b9ef6945c224af34b75",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-15T20:00:06Z",
    "title_canon_sha256": "cbcd64e5a4c81b4419485d0370c9668edeaa585f7b5f456003e6fa16c0ec2b5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2778",
    "kind": "arxiv",
    "version": 1
  }
}