Pith Number

pith:GBNMYJ5I

pith:2009:GBNMYJ5I6MDJM3KMOPS5ZO5PSE

not attested not anchored not stored refs pending

The Stellar Mass Density and Specific Star Formation Rate of the Universe at z~7

Gabriel B. Brammer (Yale University), Garth Illingworth (UCSC), Ivo Labbe (OCIW), Marijn Franx (Leiden Observatory), Mariska Kriek (Princeton University), Rychard J. Bouwens (UCSC/Leiden Observatory), Valentino Gonzalez (UCSC)

arxiv:0909.3517 v2 · 2009-09-21 · 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{GBNMYJ5I6MDJM3KMOPS5ZO5PSE}

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	2026-05-18T02:34:29.515541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

305acc27a8f306966d4c73e5dcbbaf9123c6a4d787b76841ed5f3161a6e0e915

Aliases

arxiv: 0909.3517 · arxiv_version: 0909.3517v2 · doi: 10.48550/arxiv.0909.3517 · pith_short_12: GBNMYJ5I6MDJ · pith_short_16: GBNMYJ5I6MDJM3KM · pith_short_8: GBNMYJ5I

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/GBNMYJ5I6MDJM3KMOPS5ZO5PSE \
  | 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: 305acc27a8f306966d4c73e5dcbbaf9123c6a4d787b76841ed5f3161a6e0e915

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8197b541940f8441b4429a5bb3cfbf9e72251c448b3b495ae75bc60c49b7bd58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-21T18:32:25Z",
    "title_canon_sha256": "b1bb1c6cecaaf49588bc580b3c6908f3700a49641abd76ba8e36fc4943e872bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3517",
    "kind": "arxiv",
    "version": 2
  }
}