Pith Number

pith:3HRNOOS2

pith:2021:3HRNOOS2UXDCBXFKTARQPGBKGO

not attested not anchored not stored refs pending

VLA resolves unexpected radio structures in the Perseus cluster of galaxies

Andrew C. Fabian, Annabelle Richard-Laferri\`ere, Charles L. H. Hull, Elke Roediger, Emmet Golden-Marx, James D. McBride, Julie Hlavacek-Larrondo, Lawrence Rudnick, Marie-Lou Gendron-Marsolais, Naoki Arakawa, Ralph Kraft, Reinout J. van Weeren, Rick Perley

arxiv:2101.05305 v1 · 2021-01-13 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3HRNOOS2UXDCBXFKTARQPGBKGO}

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	2026-07-05T02:33:27.044557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9e2d73a5aa5c620dcaa982307982a338028a4c01f05bbbf86afe5a9d93b9dfe

Aliases

arxiv: 2101.05305 · arxiv_version: 2101.05305v1 · doi: 10.48550/arxiv.2101.05305 · pith_short_12: 3HRNOOS2UXDC · pith_short_16: 3HRNOOS2UXDCBXFK · pith_short_8: 3HRNOOS2

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/3HRNOOS2UXDCBXFKTARQPGBKGO \
  | 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: d9e2d73a5aa5c620dcaa982307982a338028a4c01f05bbbf86afe5a9d93b9dfe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d2d87afe6360c28ade5a49f546586860658094c1ff8b8781393806ce99672e0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-01-13T19:03:04Z",
    "title_canon_sha256": "442fae1513853947cdf3fd819566700e8a314aec2ba2bd3d06923ea0901b9f26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.05305",
    "kind": "arxiv",
    "version": 1
  }
}