Pith Number

pith:LV2AFV5L

pith:2021:LV2AFV5LNSY4WYWC2YOYLFY37Q

not attested not anchored not stored refs pending

A study of outer disk stellar populations of face-on star-forming galaxies in SDSS-IV MaNGA: causes of H$\alpha$ deficiency

Guinevere Kauffmann

arxiv:2107.05029 v1 · 2021-07-11 · 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{LV2AFV5LNSY4WYWC2YOYLFY37Q}

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	2026-07-05T03:06:31.479289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d7402d7ab6cb1cb62c2d61d85971bfc2972c45f1086f4d806af88c7a3ad76ae

Aliases

arxiv: 2107.05029 · arxiv_version: 2107.05029v1 · doi: 10.48550/arxiv.2107.05029 · pith_short_12: LV2AFV5LNSY4 · pith_short_16: LV2AFV5LNSY4WYWC · pith_short_8: LV2AFV5L

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/LV2AFV5LNSY4WYWC2YOYLFY37Q \
  | 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: 5d7402d7ab6cb1cb62c2d61d85971bfc2972c45f1086f4d806af88c7a3ad76ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08d8de8aa9fee17e76e5174a766240d9439c8af6b8c3630961809d027ae83de9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-07-11T12:01:48Z",
    "title_canon_sha256": "cf9025c9d8d892a83fd4bfe04b1b6fdf86eb4dd5502df1dcb9100c25eb90946c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.05029",
    "kind": "arxiv",
    "version": 1
  }
}