Pith Number

pith:5DDDR2VO

pith:2017:5DDDR2VOYUK2UCPN3Z2OKOG5V5

not attested not anchored not stored refs pending

Breaks in surface brightness profiles and radial abundance gradients in the discs of spiral galaxies

E.K Grebel, I.A. Zinchenko, J.M. Vilchez, L.S. Pilyugin, Y.A. Nefedyev

arxiv:1709.00595 v1 · 2017-09-02 · 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{5DDDR2VOYUK2UCPN3Z2OKOG5V5}

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	2026-05-18T00:27:43.689487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8c638eaaec515aa09edde74e538ddaf558c37c6cdc8a11220fe7ab2318fffe8

Aliases

arxiv: 1709.00595 · arxiv_version: 1709.00595v1 · doi: 10.48550/arxiv.1709.00595 · pith_short_12: 5DDDR2VOYUK2 · pith_short_16: 5DDDR2VOYUK2UCPN · pith_short_8: 5DDDR2VO

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/5DDDR2VOYUK2UCPN3Z2OKOG5V5 \
  | 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: e8c638eaaec515aa09edde74e538ddaf558c37c6cdc8a11220fe7ab2318fffe8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fe79e19494e693f3d701c218efa9835e03db00afec15995289c2d0eb17333a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-02T15:08:30Z",
    "title_canon_sha256": "320ff3389dd0ed2f1050c4d4efa7a9927a8706f4335a6d65dcc12becee74cb0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.00595",
    "kind": "arxiv",
    "version": 1
  }
}