Pith Number

pith:VD3Y36RS

pith:2018:VD3Y36RS4AJUIDIH7EFXT7ZNMO

not attested not anchored not stored refs pending

Eight luminous early-type galaxies in nearby pairs and sparse groups I. Stellar populations spatially analysed

A. C. Krabbe, A. C. Milone, D. A. Rosa, I. Rodrigues

arxiv:1806.01980 v2 · 2018-06-06 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VD3Y36RS4AJUIDIH7EFXT7ZNMO}

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	2026-05-18T00:13:54.777755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8f78dfa32e013440d07f90b79ff2d63959ca1908f5843bb2e75cefa20e38e48

Aliases

arxiv: 1806.01980 · arxiv_version: 1806.01980v2 · doi: 10.48550/arxiv.1806.01980 · pith_short_12: VD3Y36RS4AJU · pith_short_16: VD3Y36RS4AJUIDIH · pith_short_8: VD3Y36RS

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/VD3Y36RS4AJUIDIH7EFXT7ZNMO \
  | 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: a8f78dfa32e013440d07f90b79ff2d63959ca1908f5843bb2e75cefa20e38e48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ccbf9a19ec49be7114573031519d39bb17e956277c5c635792d0f6c5ea6f766",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-06-06T02:13:17Z",
    "title_canon_sha256": "f977e26f7ea9b1b75d15724a340669e399afd811b372383c80752ac1ab81edc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01980",
    "kind": "arxiv",
    "version": 2
  }
}