Pith Number

pith:3BJS4ZI7

pith:2022:3BJS4ZI7VC67XAGWDNSF4ZPSFB

not attested not anchored not stored refs pending

A Study of Radio Knots within Supernova Remnant Cassiopeia A

Haiyan Zhang, Hui Zhu, Wenwu Tian, Xianhuan Lei

arxiv:2211.04777 v1 · 2022-11-09 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3BJS4ZI7VC67XAGWDNSF4ZPSFB}

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	2026-07-05T05:24:44.836576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8532e651fa8bdfb80d61b645e65f228764a84a4641cbff861f917e1f09e2750

Aliases

arxiv: 2211.04777 · arxiv_version: 2211.04777v1 · doi: 10.48550/arxiv.2211.04777 · pith_short_12: 3BJS4ZI7VC67 · pith_short_16: 3BJS4ZI7VC67XAGW · pith_short_8: 3BJS4ZI7

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/3BJS4ZI7VC67XAGWDNSF4ZPSFB \
  | 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: d8532e651fa8bdfb80d61b645e65f228764a84a4641cbff861f917e1f09e2750

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64160aaf7f6e8b4f616607547949fc72712673017fa54fe72db1fe209f19f56d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-11-09T10:10:00Z",
    "title_canon_sha256": "6ef2679fdd8a3339794adbb465ef7d2f6f270325174a4017777a7b3da2789c47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.04777",
    "kind": "arxiv",
    "version": 1
  }
}