Pith Number

pith:H7D6G3K4

pith:2002:H7D6G3K44GCBV7ADNG22N7R2FQ

not attested not anchored not stored refs pending

Electromagnetic Pulse from Final Gravitational Stellar Collapse

Chile), Ivan Schmidt (Universidad Tecnica Federico Santa Maria, P.D. Morley (Veridian Systems)

arxiv:astro-ph/0201512 v1 · 2002-01-30 · 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{H7D6G3K44GCBV7ADNG22N7R2FQ}

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	2026-07-04T16:29:20.282216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fc7e36d5ce1841afc0369b5a6fe3a2c1793386babe255a5e7f0169dcaa64b71

Aliases

arxiv: astro-ph/0201512 · arxiv_version: astro-ph/0201512v1 · doi: 10.48550/arxiv.astro-ph/0201512 · pith_short_12: H7D6G3K44GCB · pith_short_16: H7D6G3K44GCBV7AD · pith_short_8: H7D6G3K4

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/H7D6G3K44GCBV7ADNG22N7R2FQ \
  | 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: 3fc7e36d5ce1841afc0369b5a6fe3a2c1793386babe255a5e7f0169dcaa64b71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71385df1c374945adeab2d71ae77236862354cf6e90c460d8f5a34f472eae9c6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-01-30T16:21:14Z",
    "title_canon_sha256": "9ba02a73b0c89bc0ef1f4db9ea1f5ead6387767ccfbf7b03eaf5515ea90d2dc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0201512",
    "kind": "arxiv",
    "version": 1
  }
}