Pith Number

pith:TU32FGFQ

pith:2015:TU32FGFQU5JWVQSHX32ZARM25G

not attested not anchored not stored refs pending

On the radial abundance gradients in disks of irregular galaxies

E.K. Grebel, I.A. Zinchenko, L.S. Pilyugin

arxiv:1505.00337 v1 · 2015-05-02 · 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{TU32FGFQU5JWVQSHX32ZARM25G}

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	2026-05-18T02:17:10.419113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d37a298b0a7536ac247bef590459ae9ba99b56c7cb9dcb11c04cc809a1fafec

Aliases

arxiv: 1505.00337 · arxiv_version: 1505.00337v1 · doi: 10.48550/arxiv.1505.00337 · pith_short_12: TU32FGFQU5JW · pith_short_16: TU32FGFQU5JWVQSH · pith_short_8: TU32FGFQ

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/TU32FGFQU5JWVQSHX32ZARM25G \
  | 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: 9d37a298b0a7536ac247bef590459ae9ba99b56c7cb9dcb11c04cc809a1fafec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b00efac12df7bb8422d02f5cafbd3b8501b96f708ae750d36a36fff295304f2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-02T12:48:26Z",
    "title_canon_sha256": "7635ed0446ac847f0ca90fac197bea73a7f541aced622d0a1e1fbd4fbd11a432"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00337",
    "kind": "arxiv",
    "version": 1
  }
}