Pith Number

pith:AC4MD2PI

pith:2021:AC4MD2PI4JZYMWKMATHSTI7Y3O

not attested not anchored not stored refs pending

MeerKAT discovery of radio emission from the Vela X-1 bow shock

G. R. Sivakoff, I. Heywood, J. C. A. Miller-Jones, J. van den Eijnden, P. A. Woudt, P. Saikia, R. Fender, S. Mohamed, S. Motta, T. D. Russell

arxiv:2111.10159 v2 · 2021-11-19 · 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{AC4MD2PI4JZYMWKMATHSTI7Y3O}

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	2026-07-05T03:38:41.511948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00b8c1e9e8e27386594c04cf29a3f8dbbc933745512c364443d93b3d7748dedd

Aliases

arxiv: 2111.10159 · arxiv_version: 2111.10159v2 · doi: 10.48550/arxiv.2111.10159 · pith_short_12: AC4MD2PI4JZY · pith_short_16: AC4MD2PI4JZYMWKM · pith_short_8: AC4MD2PI

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/AC4MD2PI4JZYMWKMATHSTI7Y3O \
  | 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: 00b8c1e9e8e27386594c04cf29a3f8dbbc933745512c364443d93b3d7748dedd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f75dc3c6d880bee4853af1de8bb50b32bde15ea777cf8f140e2b285149381f32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-11-19T11:19:33Z",
    "title_canon_sha256": "5aecfef76975f8c798b4ec42ee3e63f0f20428c718bc5c0a761a94d2223dcf74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.10159",
    "kind": "arxiv",
    "version": 2
  }
}