Pith Number

pith:27HCVCYF

pith:2018:27HCVCYFK5HGYQYQ7XQTDJ5YBE

not attested not anchored not stored refs pending

Expansion and Age of the X-ray Synchrotron-Dominated Supernova Remnant G330.2+1.0

Brian J. Williams, Kazimierz J. Borkowski, Robert Petre, Stephen P. Reynolds

arxiv:1811.01998 v2 · 2018-11-05 · 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{27HCVCYFK5HGYQYQ7XQTDJ5YBE}

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	2026-05-17T23:58:08.373474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7ce2a8b05574e6c4310fde131a7b80906ce0e9804bcab98c95ec8ca7e11f6ed

Aliases

arxiv: 1811.01998 · arxiv_version: 1811.01998v2 · doi: 10.48550/arxiv.1811.01998 · pith_short_12: 27HCVCYFK5HG · pith_short_16: 27HCVCYFK5HGYQYQ · pith_short_8: 27HCVCYF

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/27HCVCYFK5HGYQYQ7XQTDJ5YBE \
  | 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: d7ce2a8b05574e6c4310fde131a7b80906ce0e9804bcab98c95ec8ca7e11f6ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2d2ee1f3ce89a37792792f9f493a2db50b231afdfbb7c1ac26c47808f299b1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-11-05T19:46:06Z",
    "title_canon_sha256": "2310c56ca448f01fe63f1ce63cde6ca03f829483d340245e931f84c48f786067"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.01998",
    "kind": "arxiv",
    "version": 2
  }
}