Pith Number

pith:VMRHY6BQ

pith:2013:VMRHY6BQJJYDSUSCPYGHTGFLY7

not attested not anchored not stored refs pending

Spectroscopy of H II Regions in the Late-Type Spiral Galaxy NGC 6946

Alexander S. Gusev, Firouz Sakhibov, Sergey N. Dodonov

arxiv:1303.6489 v1 · 2013-03-26 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VMRHY6BQJJYDSUSCPYGHTGFLY7}

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	2026-05-18T03:29:49.303701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab227c78304a703952427e0c7998abc7d595da145957964f89d1cc8c2ac203e1

Aliases

arxiv: 1303.6489 · arxiv_version: 1303.6489v1 · doi: 10.48550/arxiv.1303.6489 · pith_short_12: VMRHY6BQJJYD · pith_short_16: VMRHY6BQJJYDSUSC · pith_short_8: VMRHY6BQ

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/VMRHY6BQJJYDSUSCPYGHTGFLY7 \
  | 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: ab227c78304a703952427e0c7998abc7d595da145957964f89d1cc8c2ac203e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e54c630aa714f2bbf7cf5320fb832d2d4f439fb60de3360954d078de36e38d93",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-26T13:49:20Z",
    "title_canon_sha256": "1a65e653114ac91522d46de0af21b9f9b08260f71895dca40a6bb990a896c851"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6489",
    "kind": "arxiv",
    "version": 1
  }
}