Pith Number

pith:W3NDJJR6

pith:2021:W3NDJJR6TJLFBTZNACU66CSJB2

not attested not anchored not stored refs pending

Will the Mars Helicopter Induce Local Martian Atmospheric Breakdown?

A. Wang, J. L. McLain, J. R. Marshall, W. M. Farrell

arxiv:2102.04181 v1 · 2021-02-08 · astro-ph.EP · astro-ph.IM · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W3NDJJR6TJLFBTZNACU66CSJB2}

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	2026-07-05T02:13:31.002644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6da34a63e9a5650cf2d00a9ef0a490e8883825e2597e650884f2c39910089b4

Aliases

arxiv: 2102.04181 · arxiv_version: 2102.04181v1 · doi: 10.48550/arxiv.2102.04181 · pith_short_12: W3NDJJR6TJLF · pith_short_16: W3NDJJR6TJLFBTZN · pith_short_8: W3NDJJR6

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/W3NDJJR6TJLFBTZNACU66CSJB2 \
  | 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: b6da34a63e9a5650cf2d00a9ef0a490e8883825e2597e650884f2c39910089b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7aeb270b9c3a32e715441ad1d0aa9ffc2ebe878f9d47a2fbbed6fb76144b702",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.space-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-02-08T13:25:45Z",
    "title_canon_sha256": "1e6bf5b61ce28e82e15adcb0a209463a1a8dbb0ed6fe921d61954b9b643392db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.04181",
    "kind": "arxiv",
    "version": 1
  }
}