Pith Number

pith:3BFBBDVU

pith:2025:3BFBBDVUWEDD6LMFUACYBKOG5P

not attested not anchored not stored refs pending

Cassiopeia A's Reverse Shock and its Effects on the Expanding SN Ejecta

Daniel Patnaude, Dan Milisavljevic, John C. Raymond, Kathryn E. Weil, McKinley Brumback, Robert A. Fesen, Roger A. Chevalier

arxiv:2501.07708 v1 · 2025-01-13 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3BFBBDVUWEDD6LMFUACYBKOG5P}

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	2026-07-05T10:00:48.845310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d84a108eb4b1063f2d85a00580a9c6ebe00a53843004b6841d1171d57b17003c

Aliases

arxiv: 2501.07708 · arxiv_version: 2501.07708v1 · doi: 10.48550/arxiv.2501.07708 · pith_short_12: 3BFBBDVUWEDD · pith_short_16: 3BFBBDVUWEDD6LMF · pith_short_8: 3BFBBDVU

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/3BFBBDVUWEDD6LMFUACYBKOG5P \
  | 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: d84a108eb4b1063f2d85a00580a9c6ebe00a53843004b6841d1171d57b17003c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bb68668c15c186cec63ffe36612dee0e449d80d0ce258565c907a42a564ef66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-01-13T21:39:24Z",
    "title_canon_sha256": "7b15824e08d6028d6f18990b8c3a4c49573ba01545bfe7cabb43ac91e379bd0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.07708",
    "kind": "arxiv",
    "version": 1
  }
}