Pith Number

pith:7SUHF6J5

pith:2009:7SUHF6J5GSG6UTO5THXO4E3KP2

not attested not anchored not stored refs pending

Radio monitoring of NGC 7469: Late time radio evolution of SN 2000ft and the circumnuclear starburst in NGC 7469

A. Alberdi, A. Wilson, E. Kankare, J.M. Torrelles, L. Colina, M.A. Perez-Torres, N. Panagia, S. Mattila

arxiv:0907.2644 v1 · 2009-07-15 · 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{7SUHF6J5GSG6UTO5THXO4E3KP2}

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	2026-05-18T02:13:02.723134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fca872f93d348dea4ddd99eeee136a7ead6a3c79358bfb9f9fa0edb41215fba3

Aliases

arxiv: 0907.2644 · arxiv_version: 0907.2644v1 · doi: 10.48550/arxiv.0907.2644 · pith_short_12: 7SUHF6J5GSG6 · pith_short_16: 7SUHF6J5GSG6UTO5 · pith_short_8: 7SUHF6J5

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/7SUHF6J5GSG6UTO5THXO4E3KP2 \
  | 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: fca872f93d348dea4ddd99eeee136a7ead6a3c79358bfb9f9fa0edb41215fba3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "373fbf25156604342522f24e26837be46e811932fe25ee3eaa75c2d78ab08c14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-15T16:52:20Z",
    "title_canon_sha256": "f793bde510b2f203722decbaaccaed29417b9ce3814f93686da24997fc0cba29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2644",
    "kind": "arxiv",
    "version": 1
  }
}