Pith Number

pith:IFXXK7T5

pith:2011:IFXXK7T52E4ATT7PZKBD3ECLYZ

not attested not anchored not stored refs pending

Tracing the Star Formation-Density Relation to z~2

Hendrik Hildebrandt, Marijn Franx, Rik J. Williams, Ryan F. Quadri

arxiv:1104.1426 v1 · 2011-04-07 · 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{IFXXK7T52E4ATT7PZKBD3ECLYZ}

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	2026-05-18T02:02:36.575060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

416f757e7dd13809cfefca823d904bc6465236e6687a72d10e5e0079c09185c5

Aliases

arxiv: 1104.1426 · arxiv_version: 1104.1426v1 · doi: 10.48550/arxiv.1104.1426 · pith_short_12: IFXXK7T52E4A · pith_short_16: IFXXK7T52E4ATT7P · pith_short_8: IFXXK7T5

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/IFXXK7T52E4ATT7PZKBD3ECLYZ \
  | 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: 416f757e7dd13809cfefca823d904bc6465236e6687a72d10e5e0079c09185c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c058ac41fb5c22a7125087301570217ae9b3f165375f2ed29a357c531698ac5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-07T20:00:02Z",
    "title_canon_sha256": "35bc8bc93651e7cb246a69319d08e2ed1586e128fb42a31e9ae46647818e56ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1426",
    "kind": "arxiv",
    "version": 1
  }
}