Pith Number

pith:HB4NEJAB

pith:2018:HB4NEJABFJHSGQQCXG4DSIHUVF

not attested not anchored not stored refs pending

Black hole spin from wobbling and rotation of the M87 jet and a sign of a magnetically arrested disc

Denis Nikolaevich Sob'yanin (LPI, Mipt)

arxiv:1807.06296 v1 · 2018-07-17 · astro-ph.HE · 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{HB4NEJABFJHSGQQCXG4DSIHUVF}

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	2026-05-18T00:10:33.430049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3878d224012a4f234202b9b83920f4a969e5dfde5bdda54ac23487afe1ec5c98

Aliases

arxiv: 1807.06296 · arxiv_version: 1807.06296v1 · doi: 10.48550/arxiv.1807.06296 · pith_short_12: HB4NEJABFJHS · pith_short_16: HB4NEJABFJHSGQQC · pith_short_8: HB4NEJAB

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/HB4NEJABFJHSGQQCXG4DSIHUVF \
  | 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: 3878d224012a4f234202b9b83920f4a969e5dfde5bdda54ac23487afe1ec5c98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e739e1683ec7f3d02a1437960e8236878e41ef591adfcf319d362d4e35f83748",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-07-17T09:32:29Z",
    "title_canon_sha256": "e5cba0f010e48aa98b7012a2b49b903a641c57caada1ee22a89eceaf7654c32e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06296",
    "kind": "arxiv",
    "version": 1
  }
}