Pith Number

pith:B5I42ZN3

pith:2007:B5I42ZN36KEXB4PT45JOCJWI54

not attested not anchored not stored refs pending

A giant radio jet ejected by an ultramassive black hole in a single-lobed radio galaxy

Gopal-Krishna, Joydeep Bagchi, Marita Krause, Santosh Joshi

arxiv:0712.0543 v1 · 2007-12-04 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B5I42ZN36KEXB4PT45JOCJWI54}

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	2026-05-18T04:29:33.752241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f51cd65bbf28970f1f3e752e126c8ef19ac8958e53c6a6c0fa25270a45d0dd2

Aliases

arxiv: 0712.0543 · arxiv_version: 0712.0543v1 · doi: 10.48550/arxiv.0712.0543 · pith_short_12: B5I42ZN36KEX · pith_short_16: B5I42ZN36KEXB4PT · pith_short_8: B5I42ZN3

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/B5I42ZN36KEXB4PT45JOCJWI54 \
  | 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: 0f51cd65bbf28970f1f3e752e126c8ef19ac8958e53c6a6c0fa25270a45d0dd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62809fc121ce83160f4d21059e7bf8b8039be65011621da3abf82cd149a1cd3c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-12-04T15:13:44Z",
    "title_canon_sha256": "36e56385096cb28446d8fb0fed058838a83d9b536314e0276f5490d60fd489cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.0543",
    "kind": "arxiv",
    "version": 1
  }
}