Pith Number

pith:ZFZ6D7YU

pith:2018:ZFZ6D7YUSQBO2SH72ZGPS4UGYK

not attested not anchored not stored refs pending

Low-Frequency Radio Absorption in Cassiopeia A

F. De Gasperin, J.B.R. Oonk, J. Vink, M. Arias, P. Salas, R.J. van Weeren (and LOFAR builders)

arxiv:1801.04887 v2 · 2018-01-15 · 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{ZFZ6D7YUSQBO2SH72ZGPS4UGYK}

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.

Cited by

1 paper in Pith

Supernova remnants in the new radio astronomy era

Receipt and verification

First computed	2026-05-18T00:16:27.136828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c973e1ff149402ed48ffd64cf97286c2aded088bc3049aa2a5970a9a59f508e4

Aliases

arxiv: 1801.04887 · arxiv_version: 1801.04887v2 · doi: 10.48550/arxiv.1801.04887 · pith_short_12: ZFZ6D7YUSQBO · pith_short_16: ZFZ6D7YUSQBO2SH7 · pith_short_8: ZFZ6D7YU

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/ZFZ6D7YUSQBO2SH72ZGPS4UGYK \
  | 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: c973e1ff149402ed48ffd64cf97286c2aded088bc3049aa2a5970a9a59f508e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02c3c67117759815b5bd7675fea75aa6c214a849f5aedfd910dda6e02ddf742c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-01-15T17:38:13Z",
    "title_canon_sha256": "a9f19b78cd855a51ab309a63033f3243e05c62f6f5f99f424d112f6bf62bf780"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04887",
    "kind": "arxiv",
    "version": 2
  }
}