Pith Number

pith:TNGYU4AV

pith:2008:TNGYU4AVX5GQDQ5ONGCUC4UGLO

not attested not anchored not stored refs pending

Variation of Bar Strength with Central Velocity Dispersion in Spiral Galaxies

(2) University of Oulu, (3) University of Alabama), E.Laurikainen (2), H.Salo (2), M.Das (1), R.Buta (3) ((1) Raman Research Institute

arxiv:0807.2699 v1 · 2008-07-17 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TNGYU4AVX5GQDQ5ONGCUC4UGLO}

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	2026-05-18T02:35:15.528468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b4d8a7015bf4d01c3ae69854172865ba24d166b186cdb10578676be4eaa71db

Aliases

arxiv: 0807.2699 · arxiv_version: 0807.2699v1 · doi: 10.48550/arxiv.0807.2699 · pith_short_12: TNGYU4AVX5GQ · pith_short_16: TNGYU4AVX5GQDQ5O · pith_short_8: TNGYU4AV

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/TNGYU4AVX5GQDQ5ONGCUC4UGLO \
  | 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: 9b4d8a7015bf4d01c3ae69854172865ba24d166b186cdb10578676be4eaa71db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50741ceaedf044afce1ca73881e7821b851f0c07e71607a92d4af47c2162db1d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-17T06:01:07Z",
    "title_canon_sha256": "55a4b80f998f6b733cb9c14e8b8bcfa2d0b8fee81d6dbcdf5896d0d6401c433e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.2699",
    "kind": "arxiv",
    "version": 1
  }
}