Pith Number

pith:4HZXAVDK

pith:2002:4HZXAVDKYWN2VTSJPKYFKJUV6G

not attested not anchored not stored refs pending

Optical and Infrared Observations of Radioactive Elements in Supernovae

Jesper Sollerman

arxiv:astro-ph/0204469 v1 · 2002-04-29 · 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{4HZXAVDKYWN2VTSJPKYFKJUV6G}

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	2026-05-18T01:40:42.893039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1f370546ac59baace497ab0552695f18bc88e8dfb093c04d9c76b8e5f494c1c

Aliases

arxiv: astro-ph/0204469 · arxiv_version: astro-ph/0204469v1 · doi: 10.48550/arxiv.astro-ph/0204469 · pith_short_12: 4HZXAVDKYWN2 · pith_short_16: 4HZXAVDKYWN2VTSJ · pith_short_8: 4HZXAVDK

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/4HZXAVDKYWN2VTSJPKYFKJUV6G \
  | 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: e1f370546ac59baace497ab0552695f18bc88e8dfb093c04d9c76b8e5f494c1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96a5bf80fe74e34939b95aba8e9333859c7c4bce818602b38d198937db39ccb4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-04-29T17:59:55Z",
    "title_canon_sha256": "8ae02a51387abaced12fe62d9cca7032b00814a46d080dcbe8a16aa0b0832db7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0204469",
    "kind": "arxiv",
    "version": 1
  }
}