Pith Number

pith:SPGUDB27

pith:2021:SPGUDB272SEHOYV4DSCNCRXDZJ

not attested not anchored not stored refs pending

[$\alpha$/Fe] traced by H ii regions from the CALIFA survey: The connection between morphology and chemical abundance patterns

A. Camps-Fari\~na, C. Espinosa-Ponce, C. J. Walcher, C. Morisset, J. K. Barrera-Ballesteros, L. Carigi, L. Galbany, R. Garc\'ia-Benito, S. F. S\'anchez

arxiv:2106.06833 v2 · 2021-06-12 · 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{SPGUDB272SEHOYV4DSCNCRXDZJ}

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	2026-07-05T03:08:32.231730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93cd41875fd4887762bc1c84d146e3ca63c6e59225cbe3214c826af2e8dedea3

Aliases

arxiv: 2106.06833 · arxiv_version: 2106.06833v2 · doi: 10.48550/arxiv.2106.06833 · pith_short_12: SPGUDB272SEH · pith_short_16: SPGUDB272SEHOYV4 · pith_short_8: SPGUDB27

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/SPGUDB272SEHOYV4DSCNCRXDZJ \
  | 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: 93cd41875fd4887762bc1c84d146e3ca63c6e59225cbe3214c826af2e8dedea3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0b154c70317a859b85f19978b76a9400e5db6ef071ace9a86bee718e02f433f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-06-12T18:55:01Z",
    "title_canon_sha256": "a3115b7fc81b1b4387ad91d064b8bb779c5515821a8e031ded32a061c3be70dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.06833",
    "kind": "arxiv",
    "version": 2
  }
}