Pith Number

pith:C2TPYGYQ

pith:2007:C2TPYGYQDW4ZKCNJQ6ONLLW6XN

not attested not anchored not stored refs pending

Seyfert's Sextet: A Slowly Dissolving Stephan's Quintet?

A. Del Olmo, A. Durbala, A. Iovino, H. Plana, I. Fuentes-Carrera, J. Perea, J. W. Sulentic, L. Verdes-Montenegro, M. Rosado, M. S. Yun

arxiv:0709.4511 v1 · 2007-09-28 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C2TPYGYQDW4ZKCNJQ6ONLLW6XN}

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	2026-07-04T15:44:32.850395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16a6fc1b101db99509a9879cd5aedebb60faa72f11bba873563a1a999a2db7cb

Aliases

arxiv: 0709.4511 · arxiv_version: 0709.4511v1 · doi: 10.48550/arxiv.0709.4511 · pith_short_12: C2TPYGYQDW4Z · pith_short_16: C2TPYGYQDW4ZKCNJ · pith_short_8: C2TPYGYQ

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/C2TPYGYQDW4ZKCNJQ6ONLLW6XN \
  | 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: 16a6fc1b101db99509a9879cd5aedebb60faa72f11bba873563a1a999a2db7cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59162b12abfa26edc1c1ef1ce3af3bbb8f5452cb1a06f2326063ffb7f31cbf72",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-28T00:15:19Z",
    "title_canon_sha256": "c57eff7f007f1a2d307ca0c02160ee2dff172c69c6036f16ddeb7ab2e64005b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.4511",
    "kind": "arxiv",
    "version": 1
  }
}