Pith Number

pith:AJKO2JDB

pith:2019:AJKO2JDBBHBGD2WGZM7VM4GQLE

not attested not anchored not stored refs pending

Low-frequency radio absorption in Tycho's supernova remnant

Francesco de Gasperin, Jacco Vink, Maria Arias, Martin J. Hardcastle, Ping Zhou, Tim W. Shimwell

arxiv:1911.02943 v1 · 2019-11-07 · 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{AJKO2JDBBHBGD2WGZM7VM4GQLE}

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	2026-07-05T00:31:30.799516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0254ed246109c261eac6cb3f5670d05931261ceb3ec1fe09e3ba0a17830a899b

Aliases

arxiv: 1911.02943 · arxiv_version: 1911.02943v1 · doi: 10.48550/arxiv.1911.02943 · pith_short_12: AJKO2JDBBHBG · pith_short_16: AJKO2JDBBHBGD2WG · pith_short_8: AJKO2JDB

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/AJKO2JDBBHBGD2WGZM7VM4GQLE \
  | 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: 0254ed246109c261eac6cb3f5670d05931261ceb3ec1fe09e3ba0a17830a899b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "075820cf843c90ef4d32c7f253fb50ea1f18a14e778fd7ab4357586a7dfd4115",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-11-07T14:41:46Z",
    "title_canon_sha256": "b667745a8c70c73e360da91a8350a0d14d7bdc8e7009292cdf70d51e18dfe394"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.02943",
    "kind": "arxiv",
    "version": 1
  }
}