Pith Number

pith:4ZQDIAK4

pith:2020:4ZQDIAK4CQHQUMAWM6L25KXUVG

not attested not anchored not stored refs pending

Are the spiral arms in the MWC 758 protoplanetary disc driven by a companion inside the cavity?

Christophe Pinte, Daniel J. Price, Josh Calcino, Nicolas Cuello, Nienke van der Marel, Tamara M. Davis, Valentin Christiaens

arxiv:2007.06155 v1 · 2020-07-13 · astro-ph.EP · 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{4ZQDIAK4CQHQUMAWM6L25KXUVG}

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	2026-07-05T01:33:41.096125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e66034015c140f0a30166797aeaaf4a98f14721683b80abdb1c59062c7177b44

Aliases

arxiv: 2007.06155 · arxiv_version: 2007.06155v1 · doi: 10.48550/arxiv.2007.06155 · pith_short_12: 4ZQDIAK4CQHQ · pith_short_16: 4ZQDIAK4CQHQUMAW · pith_short_8: 4ZQDIAK4

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/4ZQDIAK4CQHQUMAWM6L25KXUVG \
  | 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: e66034015c140f0a30166797aeaaf4a98f14721683b80abdb1c59062c7177b44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6686209c9e17222244d495f4160e88b33199562e93c157a668f2a57b1ccbe770",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-07-13T02:28:58Z",
    "title_canon_sha256": "8b437a7c5bd4d046b415e453c292a07bc2770c686be6d445d46d934aa9180cec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.06155",
    "kind": "arxiv",
    "version": 1
  }
}