Pith Number

pith:YC4IA2ZY

pith:2015:YC4IA2ZYPLPOQHMO7PGIB5GTGP

not attested not anchored not stored refs pending

Assessing Colour-dependent Occupation Statistics Inferred from Galaxy Group Catalogues

Andreas Berlind, Andrew Hearin, Duncan Campbell, Frank C van den Bosch, H. J. Mo, Jeremy Tinker, Nikhil Padmanabhan, Xiaohu Yang

arxiv:1505.04798 v1 · 2015-05-18 · astro-ph.GA · 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{YC4IA2ZYPLPOQHMO7PGIB5GTGP}

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	2026-05-18T01:36:53.443652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0b8806b387adee81d8efbcc80f4d333c2fa15ac78713a767f9f937537611c59

Aliases

arxiv: 1505.04798 · arxiv_version: 1505.04798v1 · doi: 10.48550/arxiv.1505.04798 · pith_short_12: YC4IA2ZYPLPO · pith_short_16: YC4IA2ZYPLPOQHMO · pith_short_8: YC4IA2ZY

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/YC4IA2ZYPLPOQHMO7PGIB5GTGP \
  | 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: c0b8806b387adee81d8efbcc80f4d333c2fa15ac78713a767f9f937537611c59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce8366b1631a569461c9e96b79b76f3a22a053360d088ffc91adbc53f7830f2b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-18T20:01:16Z",
    "title_canon_sha256": "93c017a7d49153535c92e3c9ffd37baa8ba29fdd64ab716096f019c7e98db6dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04798",
    "kind": "arxiv",
    "version": 1
  }
}