Pith Number

pith:Q2ZFW2X7

pith:2019:Q2ZFW2X7MAAUC6GMPQVLH2N7TJ

not attested not anchored not stored refs pending

The imprint of clump formation at high redshift. I. A disc alpha-abundance dichotomy

Adam J. Clarke, Cristina C. Popescu, David L. Nidever, Deanne B. Fisher, James Wadsley, Ken C. Freeman, Melissa Ness, Min Du, Raymond C. Simons, Sarah R. Loebman, Susan Kassin, Thomas R. Quinn, Victor P. Debattista

arxiv:1901.00931 v1 · 2019-01-03 · 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{Q2ZFW2X7MAAUC6GMPQVLH2N7TJ}

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	2026-05-17T23:55:53.118498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86b25b6aff60014178cc7c2ab3e9bf9a51935019172801c94b57fe135e9156b0

Aliases

arxiv: 1901.00931 · arxiv_version: 1901.00931v1 · doi: 10.48550/arxiv.1901.00931 · pith_short_12: Q2ZFW2X7MAAU · pith_short_16: Q2ZFW2X7MAAUC6GM · pith_short_8: Q2ZFW2X7

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/Q2ZFW2X7MAAUC6GMPQVLH2N7TJ \
  | 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: 86b25b6aff60014178cc7c2ab3e9bf9a51935019172801c94b57fe135e9156b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fa8f390fd6940e5365cb92d17bf3508def66c73daf17d1d56b9e4b6f052246a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-03T22:41:19Z",
    "title_canon_sha256": "f070d650ac30b9a155aaa4093c2421d1f8f6209b2aa98d4244744f48f6a9a0ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00931",
    "kind": "arxiv",
    "version": 1
  }
}