Pith Number

pith:EXSRQNT6

pith:2008:EXSRQNT6U4MA4SFJBVZ6YSUBRN

not attested not anchored not stored refs pending

Proper Motions and Brightness Variations of Nonthermal X-ray Filaments in the Cassiopeia A Supernova Remnant

Daniel J. Patnaude, Robert A. Fesen

arxiv:0808.0692 v2 · 2008-08-05 · 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{EXSRQNT6U4MA4SFJBVZ6YSUBRN}

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	2026-05-18T04:29:33.088878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25e518367ea7180e48a90d73ec4a818b47fc4549d01598c1e52cf5549d5dd2cf

Aliases

arxiv: 0808.0692 · arxiv_version: 0808.0692v2 · doi: 10.48550/arxiv.0808.0692 · pith_short_12: EXSRQNT6U4MA · pith_short_16: EXSRQNT6U4MA4SFJ · pith_short_8: EXSRQNT6

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/EXSRQNT6U4MA4SFJBVZ6YSUBRN \
  | 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: 25e518367ea7180e48a90d73ec4a818b47fc4549d01598c1e52cf5549d5dd2cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5de1e7fe9bae514d70d2860dc351d935bb59585b5bc3db15d97829c35e37452",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-08-05T17:19:24Z",
    "title_canon_sha256": "9dad4488d2865a53bdcabf29d2efc0b9acef99acbb4c7fdded30731ed12b28e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.0692",
    "kind": "arxiv",
    "version": 2
  }
}