Pith Number

pith:KKFIYU2A

pith:2017:KKFIYU2ATHVVZPP4ELWFABBOLW

not attested not anchored not stored refs pending

Origin of the fundamental plane of elliptical galaxies in the Coma Cluster without fine-tuning

Chenggang Shu, Chung-Ming Ko, Mu-Chen Chiu

arxiv:1703.05163 v2 · 2017-03-15 · 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{KKFIYU2ATHVVZPP4ELWFABBOLW}

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	2026-05-18T00:45:41.470369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

528a8c534099eb5cbdfc22ec50042e5da58424000e05195493a236e3ee89ddf1

Aliases

arxiv: 1703.05163 · arxiv_version: 1703.05163v2 · doi: 10.48550/arxiv.1703.05163 · pith_short_12: KKFIYU2ATHVV · pith_short_16: KKFIYU2ATHVVZPP4 · pith_short_8: KKFIYU2A

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/KKFIYU2ATHVVZPP4ELWFABBOLW \
  | 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: 528a8c534099eb5cbdfc22ec50042e5da58424000e05195493a236e3ee89ddf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5c392ac499230381645ad929eed0fdbb16ca77a639d9f0b6bc14bb359bd45e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-03-15T14:09:32Z",
    "title_canon_sha256": "68da316923ff05124bb00265d7a78e04db66d1a8e732171467b297b173376e10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05163",
    "kind": "arxiv",
    "version": 2
  }
}