Pith Number

pith:4UT6TBYV

pith:2012:4UT6TBYVFMBMOPQSTFJKIXVEPT

not attested not anchored not stored refs pending

The innermost region of the NGC 1023 Group: Insight into its evolution

(2) Dipartimento di Fisica e Astronomia, D. Bettoni (1), G. Galletta (2) ((1) INAF - Osservatorio Astronomico di Padova, L. M. Buson (1), P. Mazzei (1), Universita' di Padova)

arxiv:1204.3472 v1 · 2012-04-16 · 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{4UT6TBYVFMBMOPQSTFJKIXVEPT}

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	2026-05-18T03:57:51.459224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e527e987152b02c73e129952a45ea47cd35df04b418b8320723afa2ad5772d8b

Aliases

arxiv: 1204.3472 · arxiv_version: 1204.3472v1 · doi: 10.48550/arxiv.1204.3472 · pith_short_12: 4UT6TBYVFMBM · pith_short_16: 4UT6TBYVFMBMOPQS · pith_short_8: 4UT6TBYV

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/4UT6TBYVFMBMOPQSTFJKIXVEPT \
  | 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: e527e987152b02c73e129952a45ea47cd35df04b418b8320723afa2ad5772d8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c98ae8dbd8d280239b4a5240b390dbf9d43e6a0758102cde39c45073ff99cf4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-16T13:08:52Z",
    "title_canon_sha256": "fdf7e4b55ed3c57ed3d178a985ca914bf4d865f371c577dffd542fd31b36cac3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3472",
    "kind": "arxiv",
    "version": 1
  }
}