Pith Number

pith:NGQCZE3L

pith:2009:NGQCZE3LSKZSQK4BAD52KXDP33

not attested not anchored not stored refs pending

Probing Shock Properties with Non-thermal X-ray Filaments in Cas A

Chulhoon Chang, David Lomiashvili, Maxim Lyutikov, Miguel Araya, Wei Cui

arxiv:0912.2122 v2 · 2009-12-10 · 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{NGQCZE3LSKZSQK4BAD52KXDP33}

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	2026-05-18T02:33:56.897686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69a02c936b92b3282b8100fba55c6fded063885283f7b8c790f341786dba4aae

Aliases

arxiv: 0912.2122 · arxiv_version: 0912.2122v2 · doi: 10.48550/arxiv.0912.2122 · pith_short_12: NGQCZE3LSKZS · pith_short_16: NGQCZE3LSKZSQK4B · pith_short_8: NGQCZE3L

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/NGQCZE3LSKZSQK4BAD52KXDP33 \
  | 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: 69a02c936b92b3282b8100fba55c6fded063885283f7b8c790f341786dba4aae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d43bce12102e731cbbbdea47d8815bcb6c5cf73e4a1a66ddbda88f90547c8ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-12-10T22:50:52Z",
    "title_canon_sha256": "34eda598d4f958ce420e4c748931cd0fc2556814f57594594e76350509f6c5d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2122",
    "kind": "arxiv",
    "version": 2
  }
}