Pith Number

pith:LN2COKCI

pith:2013:LN2COKCIRAGJFIX5QLWSB4B3HF

not attested not anchored not stored refs pending

Discovery of Sub- to Superluminal Motions in the M87 Jet: An Implication of the Acceleration from Sub-relativistic to Relativistic Speeds

Akihiro Doi, Hiroshi Nagai, Keiichi Asada, Makoto Inoue, Masanori Nakamura

arxiv:1311.5709 v1 · 2013-11-22 · 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{LN2COKCIRAGJFIX5QLWSB4B3HF}

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	2026-05-18T01:46:06.996654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b74272848880c92a2fd82ed20f03b394e293c209097e723dfca049e5b057c2a

Aliases

arxiv: 1311.5709 · arxiv_version: 1311.5709v1 · doi: 10.48550/arxiv.1311.5709 · pith_short_12: LN2COKCIRAGJ · pith_short_16: LN2COKCIRAGJFIX5 · pith_short_8: LN2COKCI

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/LN2COKCIRAGJFIX5QLWSB4B3HF \
  | 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: 5b74272848880c92a2fd82ed20f03b394e293c209097e723dfca049e5b057c2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e11d99aa86d2936aadf873abe6c0296d4251031b619f5b6fba8d529ad69fc8e7",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-11-22T10:54:49Z",
    "title_canon_sha256": "9249dc10773c7d402b6460fc13af974d5d8220b913d2de038e7f07427150b78d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5709",
    "kind": "arxiv",
    "version": 1
  }
}