Pith Number

pith:N7KXMYZL

pith:2017:N7KXMYZLZB6PM7WHG63IMENDLS

not attested not anchored not stored refs pending

Freely Expanding Knots of X-ray Emitting Ejecta in Kepler's Supernova Remnant

2), (2) ISAS/JAXA, (3) Rutgers University, 4) ((1) Tokyo Metropolitan University, (4) Flatiron Institute), John P. Hughes (3, Toshiki Sato (1

arxiv:1707.08609 v1 · 2017-07-26 · 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{N7KXMYZLZB6PM7WHG63IMENDLS}

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	2026-05-18T00:36:28.107145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fd576632bc87cf67ec737b68611a35c8b9d70edc9cc8b3a393dc8da1dcd38f2

Aliases

arxiv: 1707.08609 · arxiv_version: 1707.08609v1 · doi: 10.48550/arxiv.1707.08609 · pith_short_12: N7KXMYZLZB6P · pith_short_16: N7KXMYZLZB6PM7WH · pith_short_8: N7KXMYZL

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/N7KXMYZLZB6PM7WHG63IMENDLS \
  | 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: 6fd576632bc87cf67ec737b68611a35c8b9d70edc9cc8b3a393dc8da1dcd38f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfa4a03867bc97a96860b7ebfc54e011a6d67c10870ed46b69aff389f7ddbeab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-07-26T19:00:28Z",
    "title_canon_sha256": "28284ff890b85b50624b9787b2445601fdc54af95bbe36c2de6e4b52971017b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08609",
    "kind": "arxiv",
    "version": 1
  }
}