Pith Number

pith:KH6W57GB

pith:2009:KH6W57GBWNAMHUODCUNTPSZNPF

not attested not anchored not stored refs pending

On the Dearth of Compact, Massive, Red Sequence Galaxies in the Local Universe

Arjen van der Wel, Edward N Taylor, Jarle Brinchmann, Karl Glazebrook, Marijn Franx, Pieter G van Dokkum

arxiv:0907.4766 v1 · 2009-07-27 · 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{KH6W57GBWNAMHUODCUNTPSZNPF}

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	2026-05-18T04:40:45.349289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51fd6efcc1b340c3d1c3151b37cb2d796f9dc073498954e399f89f98ba613f8e

Aliases

arxiv: 0907.4766 · arxiv_version: 0907.4766v1 · doi: 10.48550/arxiv.0907.4766 · pith_short_12: KH6W57GBWNAM · pith_short_16: KH6W57GBWNAMHUOD · pith_short_8: KH6W57GB

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/KH6W57GBWNAMHUODCUNTPSZNPF \
  | 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: 51fd6efcc1b340c3d1c3151b37cb2d796f9dc073498954e399f89f98ba613f8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33f51003bb813449bdd79ca87c6f2440adadae75a0415319a6b25afd5e3efae2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-27T21:15:00Z",
    "title_canon_sha256": "5a3b49209a7d17fe3ff9f7eeaa6e54cb0a416bdadd40b7a25599529c57060bef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4766",
    "kind": "arxiv",
    "version": 1
  }
}