Pith Number

pith:NAC4EC6S

pith:2009:NAC4EC6S7VM32UTXUQMMBDJYGU

not attested not anchored not stored refs pending

The circumnuclear environment of the peculiar galaxy NGC 3310

Angeles I. Diaz, Elena Terlevich, Guillermo F. Hagele, Monica V. Cardaci, Roberto Terlevich

arxiv:0911.3778 v1 · 2009-11-19 · 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{NAC4EC6S7VM32UTXUQMMBDJYGU}

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	2026-05-18T02:10:45.934353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6805c20bd2fd59bd5277a418c08d3835250b1c76245d84b7f99b1c0bd6440eba

Aliases

arxiv: 0911.3778 · arxiv_version: 0911.3778v1 · doi: 10.48550/arxiv.0911.3778 · pith_short_12: NAC4EC6S7VM3 · pith_short_16: NAC4EC6S7VM32UTX · pith_short_8: NAC4EC6S

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/NAC4EC6S7VM32UTXUQMMBDJYGU \
  | 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: 6805c20bd2fd59bd5277a418c08d3835250b1c76245d84b7f99b1c0bd6440eba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a7470099575c76437a770dc52b145784dc4feda18b4d353b9861c2e21c6201f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-19T12:31:11Z",
    "title_canon_sha256": "4741869c794d1e35103ee12dce1aef8316f5dc0836a344b88aff911f44ff1c8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3778",
    "kind": "arxiv",
    "version": 1
  }
}