Pith Number

pith:2TGNFJQY

pith:2019:2TGNFJQYXVINYOW3ICFWUHVT4W

not attested not anchored not stored refs pending

Flaring stellar disk in the low surface brightness galaxy UGC 7321

Chanda J. Jog, Suchira Sarkar

arxiv:1905.02735 v2 · 2019-05-07 · 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{2TGNFJQYXVINYOW3ICFWUHVT4W}

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	2026-07-05T00:00:25.531807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4ccd2a618bd50dc3adb408b6a1eb3e59b028d164aab4f0ff37cc1830c88cca4

Aliases

arxiv: 1905.02735 · arxiv_version: 1905.02735v2 · doi: 10.48550/arxiv.1905.02735 · pith_short_12: 2TGNFJQYXVIN · pith_short_16: 2TGNFJQYXVINYOW3 · pith_short_8: 2TGNFJQY

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/2TGNFJQYXVINYOW3ICFWUHVT4W \
  | 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: d4ccd2a618bd50dc3adb408b6a1eb3e59b028d164aab4f0ff37cc1830c88cca4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a909d894182db90f9dcab7a9a32437282fd4c3f10cddccee2ee9e1b29a7cfea1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-05-07T18:00:12Z",
    "title_canon_sha256": "4fc8126ec0ab5427fdb3a33af0c9d0cb24efd5b0a431d5e7fab022df57bbc0df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.02735",
    "kind": "arxiv",
    "version": 2
  }
}