Pith Number

pith:XENZV4HN

pith:2015:XENZV4HNNOLZ3NGJTAKMQEA4PK

not attested not anchored not stored refs pending

Disk mass and disk heating in the spiral galaxy NGC 3223

C. Tydtgat, G. De Geyter, G. Gentile, G. W. Angus, M. Baes, M. Koleva, S. Viaene, W. J. G. de Blok, W. Saftly

arxiv:1502.04716 v1 · 2015-02-16 · 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{XENZV4HNNOLZ3NGJTAKMQEA4PK}

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	2026-05-18T02:19:51.088940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b91b9af0ed6b979db4c99814c8101c7aa618f4b7822a643e51047935e1901b05

Aliases

arxiv: 1502.04716 · arxiv_version: 1502.04716v1 · doi: 10.48550/arxiv.1502.04716 · pith_short_12: XENZV4HNNOLZ · pith_short_16: XENZV4HNNOLZ3NGJ · pith_short_8: XENZV4HN

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/XENZV4HNNOLZ3NGJTAKMQEA4PK \
  | 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: b91b9af0ed6b979db4c99814c8101c7aa618f4b7822a643e51047935e1901b05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1417e00264ca6f3b58cd853ab088ba5749cdda071c4b73da80a2434be00de90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-16T21:00:44Z",
    "title_canon_sha256": "4d7d7fcf3cdd27a4823d694e10be6d12290eeae33388660ea80156120a6e6f53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04716",
    "kind": "arxiv",
    "version": 1
  }
}