Pith Number

pith:FYZKYNGU

pith:2018:FYZKYNGU2QIFZGL7Z2Z3NNZOQT

not attested not anchored not stored refs pending

The angular momentum of disc galaxies at z=1

A. Marasco, E. M. Di Teodoro, F. Fraternali, L. Posti, M. Ijtsma, T. Oosterloo

arxiv:1812.08479 v1 · 2018-12-20 · 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{FYZKYNGU2QIFZGL7Z2Z3NNZOQT}

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	2026-05-17T23:56:44.476763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e32ac34d4d4105c997fceb3b6b72e84caaa4d4e498f2b14acc8db4a82cb9983

Aliases

arxiv: 1812.08479 · arxiv_version: 1812.08479v1 · doi: 10.48550/arxiv.1812.08479 · pith_short_12: FYZKYNGU2QIF · pith_short_16: FYZKYNGU2QIFZGL7 · pith_short_8: FYZKYNGU

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/FYZKYNGU2QIFZGL7Z2Z3NNZOQT \
  | 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: 2e32ac34d4d4105c997fceb3b6b72e84caaa4d4e498f2b14acc8db4a82cb9983

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1541261d3acee8cf6ba696e91498b92a6778ee5432fd77becb95ce3852905ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-20T10:58:56Z",
    "title_canon_sha256": "4c5c7298107b1de5aed80d4c5b54c80bf0588028ec156f1e1527284b107183f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.08479",
    "kind": "arxiv",
    "version": 1
  }
}