Pith Number

pith:F6NUUNJR

pith:2011:F6NUUNJRY4E6OJL7LAS2EU7Y3N

not attested not anchored not stored refs pending

The origin of gas in the Extended Narrow Line Region of nearby Seyfert galaxies.I. NGC 7212

A.A. Smirnova, A. Frassati, A.V. Moiseev, F. Di Mille, G. La Mura, L. Vaona, P. Rafanelli, S. Ciroi, V. Cracco

arxiv:1109.1195 v1 · 2011-09-06 · 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{F6NUUNJRY4E6OJL7LAS2EU7Y3N}

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	2026-05-18T02:00:38.987410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f9b4a3531c709e7257f5825a253f8db68424eb1c992aebdb7b7aa98895754dd

Aliases

arxiv: 1109.1195 · arxiv_version: 1109.1195v1 · doi: 10.48550/arxiv.1109.1195 · pith_short_12: F6NUUNJRY4E6 · pith_short_16: F6NUUNJRY4E6OJL7 · pith_short_8: F6NUUNJR

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/F6NUUNJRY4E6OJL7LAS2EU7Y3N \
  | 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: 2f9b4a3531c709e7257f5825a253f8db68424eb1c992aebdb7b7aa98895754dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89a9bc3261d434a00721d9fe2be9c7b8d4bd565aca6a4ab91054e7ed1365bd3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-06T14:09:56Z",
    "title_canon_sha256": "a7558b73de19415e9a0ce9fde3035d709bf6b7cafd2bbefcc4aa556d5c5078e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1195",
    "kind": "arxiv",
    "version": 1
  }
}