Pith Number

pith:A5LDOPRU

pith:2017:A5LDOPRUVBZ4TTNOKTLUGOBUPN

not attested not anchored not stored refs pending

Angular Momentum of Early and Late Type Galaxies: Nature or Nurture?

Andrea Lapi, Claudia Mancuso, Huiyuan Wang, Jingjing Shi, Luigi Danese

arxiv:1706.02165 v1 · 2017-06-07 · 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{A5LDOPRUVBZ4TTNOKTLUGOBUPN}

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	2026-05-18T00:39:34.120770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0756373e34a873c9cdae54d74338347b4f36595177ec1fdad284a9f360a7fa44

Aliases

arxiv: 1706.02165 · arxiv_version: 1706.02165v1 · doi: 10.48550/arxiv.1706.02165 · pith_short_12: A5LDOPRUVBZ4 · pith_short_16: A5LDOPRUVBZ4TTNO · pith_short_8: A5LDOPRU

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/A5LDOPRUVBZ4TTNOKTLUGOBUPN \
  | 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: 0756373e34a873c9cdae54d74338347b4f36595177ec1fdad284a9f360a7fa44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a536519679a67bd0efd4643fb043ce403b2abda02ebc97496a728b3d5241c9bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-07T13:01:19Z",
    "title_canon_sha256": "ddc9a0375227e20f0b0b01d976d95ac3eb9b449998e0c31782df0927674f41d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02165",
    "kind": "arxiv",
    "version": 1
  }
}