Pith Number

pith:F67BBDPO

pith:2000:F67BBDPOGLYUCU6OYDCWFVU6S6

not attested not anchored not stored refs pending

The fading of SN 1997D

E. Cappellaro, F. Patat, K. Nomoto, L. Zampieri, M. Turatto, P.A. Mazzali, S. Balberg, S. Benetti, S.L. Shapiro, T. Nakamura

arxiv:astro-ph/0010332 v2 · 2000-10-17 · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F67BBDPOGLYUCU6OYDCWFVU6S6}

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	2026-07-04T16:17:24.307283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fbe108dee32f14153cec0c562d69e97a12bbb271e21080227939bac96718a1f

Aliases

arxiv: astro-ph/0010332 · arxiv_version: astro-ph/0010332v2 · doi: 10.48550/arxiv.astro-ph/0010332 · pith_short_12: F67BBDPOGLYU · pith_short_16: F67BBDPOGLYUCU6O · pith_short_8: F67BBDPO

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/F67BBDPOGLYUCU6OYDCWFVU6S6 \
  | 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: 2fbe108dee32f14153cec0c562d69e97a12bbb271e21080227939bac96718a1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57d0fc8b2041dd052b5758396637e1c79f86173e82b342a726aea91a1d2d71b8",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-17T16:20:02Z",
    "title_canon_sha256": "ab7600be955ec3b222f67ec474d41e8fdc0c6a6ea1ca5277d402024b87b594a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010332",
    "kind": "arxiv",
    "version": 2
  }
}