Pith Number

pith:QPF5C2ZU

pith:2017:QPF5C2ZUDLA37MN4Q7ZEKGK5E2

not attested not anchored not stored refs pending

MWC349A and B Are Not Gravitationally Bound: New Evidence

H. A. Smith, J. Mink, J. M. O'Meara, P. M. Drew, R. A. Jorgenson, V. Strelnitski

arxiv:1711.06734 v2 · 2017-11-17 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPF5C2ZUDLA37MN4Q7ZEKGK5E2}

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	2026-05-18T00:27:17.825370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83cbd16b341ac1bfb1bc87f245195d26bf3dfc9204aad04b812d56facae0bfa2

Aliases

arxiv: 1711.06734 · arxiv_version: 1711.06734v2 · doi: 10.48550/arxiv.1711.06734 · pith_short_12: QPF5C2ZUDLA3 · pith_short_16: QPF5C2ZUDLA37MN4 · pith_short_8: QPF5C2ZU

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/QPF5C2ZUDLA37MN4Q7ZEKGK5E2 \
  | 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: 83cbd16b341ac1bfb1bc87f245195d26bf3dfc9204aad04b812d56facae0bfa2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d587c1312e2d05cf7b0b1da0812a7b88681ce64cec69973f336efc35e7ae252a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-11-17T21:37:46Z",
    "title_canon_sha256": "1c246cd2e1216a28dce69caabec3403073fe2dde479db6c588977dc923873b4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.06734",
    "kind": "arxiv",
    "version": 2
  }
}