Pith Number

pith:BEY6AMIT

pith:2019:BEY6AMITJC2KM3LSG7OW3X3M3M

not attested not anchored not stored refs pending

Detection of Superluminal Motion in the X-Ray Jet of M87

Bradford Snios, C. C. Cheung, Christine Jones, Eileen T. Meyer, Paul E. J. Nulsen, Ralph P. Kraft, Stephen S. Murray, William R. Forman

arxiv:1905.04330 v2 · 2019-05-10 · 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{BEY6AMITJC2KM3LSG7OW3X3M3M}

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	2026-05-17T23:41:08.692501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0931e0311348b4a66d7237dd6ddf6cdb212f54492f226cbae71474f5c645a867

Aliases

arxiv: 1905.04330 · arxiv_version: 1905.04330v2 · doi: 10.48550/arxiv.1905.04330 · pith_short_12: BEY6AMITJC2K · pith_short_16: BEY6AMITJC2KM3LS · pith_short_8: BEY6AMIT

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/BEY6AMITJC2KM3LSG7OW3X3M3M \
  | 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: 0931e0311348b4a66d7237dd6ddf6cdb212f54492f226cbae71474f5c645a867

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ead345509389c9b1059cde400fae9c9e0736426923b88195e82301c17665ef79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-05-10T18:22:13Z",
    "title_canon_sha256": "2bcae8489ff7690de0e0c4da5fe7ad6663f1b1daa2c16d772716691fa48ba636"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04330",
    "kind": "arxiv",
    "version": 2
  }
}