Pith Number

pith:CB4PPK63

pith:2015:CB4PPK63RAIEX25GZO6GWDRUIN

not attested not anchored not stored refs pending

A Chandra X-ray study of the mixed-morphology supernova remnant 3C400.2

Jacco Vink (Anton Pannekoek Institute/GRAPPA, Sjors Broersen, University of Amsterdam)

arxiv:1502.00642 v1 · 2015-02-02 · 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{CB4PPK63RAIEX25GZO6GWDRUIN}

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	2026-05-18T02:28:04.672383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1078f7abdb88104beba6cbbc6b0e344373edb5554cd1a77d31257e040675a609

Aliases

arxiv: 1502.00642 · arxiv_version: 1502.00642v1 · doi: 10.48550/arxiv.1502.00642 · pith_short_12: CB4PPK63RAIE · pith_short_16: CB4PPK63RAIEX25G · pith_short_8: CB4PPK63

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/CB4PPK63RAIEX25GZO6GWDRUIN \
  | 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: 1078f7abdb88104beba6cbbc6b0e344373edb5554cd1a77d31257e040675a609

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "897923719de37a3981867f74eba71197a013ca59187aab571cc78b2c0624abc1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-02-02T21:00:46Z",
    "title_canon_sha256": "c9d129126027a429cfbee209b8a3721be0ab63fb2564a6d9f7770ae537927e91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00642",
    "kind": "arxiv",
    "version": 1
  }
}