Pith Number

pith:WYY3MPG6

pith:2011:WYY3MPG6TWUG3H25OOOTV4WKO5

not attested not anchored not stored refs pending

NGC 7097: the AGN and its mirror, revealed by PCA Tomography

J.E. Steiner, R.B. Menezes, T.V. Ricci

arxiv:1104.5511 v1 · 2011-04-28 · 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{WYY3MPG6TWUG3H25OOOTV4WKO5}

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	2026-05-18T02:55:27.953354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b631b63cde9da86d9f5d739d3af2ca77517b232dbcab4b728563f9746665fc94

Aliases

arxiv: 1104.5511 · arxiv_version: 1104.5511v1 · doi: 10.48550/arxiv.1104.5511 · pith_short_12: WYY3MPG6TWUG · pith_short_16: WYY3MPG6TWUG3H25 · pith_short_8: WYY3MPG6

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/WYY3MPG6TWUG3H25OOOTV4WKO5 \
  | 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: b631b63cde9da86d9f5d739d3af2ca77517b232dbcab4b728563f9746665fc94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37e9cfeeb2a916deeba1a830b83c419bdd48e9d9ca8a22231750e7adb9c2b94b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-28T20:48:02Z",
    "title_canon_sha256": "ac02f06fd7fccb0bf5e6c13ee4d4daf1d331f4fa00472f29cfdd1bbe956e38e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5511",
    "kind": "arxiv",
    "version": 1
  }
}