Pith Number

pith:IJXIG6KX

pith:2015:IJXIG6KX4G5M6BBC7N47WVDTTZ

not attested not anchored not stored refs pending

Abundance gradients in low surface brightness spirals: clues on the origin of common gradients in galactic discs

Fabio Bresolin (IfA, Robert C. Kennicutt (IoA, University of Cambridge), University of Hawaii)

arxiv:1509.07190 v1 · 2015-09-24 · 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{IJXIG6KX4G5M6BBC7N47WVDTTZ}

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	2026-05-18T01:28:45.693137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

426e837957e1bacf0422fb79fb54739e4aad8c836d49b9fb037c133fb6a2186f

Aliases

arxiv: 1509.07190 · arxiv_version: 1509.07190v1 · doi: 10.48550/arxiv.1509.07190 · pith_short_12: IJXIG6KX4G5M · pith_short_16: IJXIG6KX4G5M6BBC · pith_short_8: IJXIG6KX

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/IJXIG6KX4G5M6BBC7N47WVDTTZ \
  | 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: 426e837957e1bacf0422fb79fb54739e4aad8c836d49b9fb037c133fb6a2186f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97a7e1ff4f782836ff49173698fa66b9ba148ddc199149400fdc948adac94bdd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-24T00:36:42Z",
    "title_canon_sha256": "9eee019ede7747022c8292a53474ff1ed742ef3598e5b2d1c3e3534aecd000e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07190",
    "kind": "arxiv",
    "version": 1
  }
}