Pith Number

pith:LD7XJQRZ

pith:2012:LD7XJQRZHSTPGUR6C22ZDILZLN

not attested not anchored not stored refs pending

Duty Cycle and the Increasing Star Formation History of z>=6 Galaxies

(2) Kentucky), Jason Jaacks (1), Jun-Hwan Choi (2) ((1) UNLV, Kentaro Nagamine (1)

arxiv:1204.4846 v2 · 2012-04-21 · 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{LD7XJQRZHSTPGUR6C22ZDILZLN}

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	2026-05-18T01:57:47.724841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58ff74c2393ca6f3523e16b591a1795b4f64ad3286c0ca19cd012a2e982b975d

Aliases

arxiv: 1204.4846 · arxiv_version: 1204.4846v2 · doi: 10.48550/arxiv.1204.4846 · pith_short_12: LD7XJQRZHSTP · pith_short_16: LD7XJQRZHSTPGUR6 · pith_short_8: LD7XJQRZ

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/LD7XJQRZHSTPGUR6C22ZDILZLN \
  | 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: 58ff74c2393ca6f3523e16b591a1795b4f64ad3286c0ca19cd012a2e982b975d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db5b3dec2e12446b0b1a021105720515bf3a513d92cfe2f50fba09c713f66ee5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-21T23:10:27Z",
    "title_canon_sha256": "bee20b684b7a492ac1fe1aadf780ed41647bb169165f2c36793b9250173d2133"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4846",
    "kind": "arxiv",
    "version": 2
  }
}