Pith Number

pith:XFVU5W2I

pith:2015:XFVU5W2I6KHCVT7OIC3T4EKBQP

not attested not anchored not stored refs pending

Exploring the atmosphere using smartphones

Arturo C. Marti, Cecilia Cabeza, Cecilia Stari, Mart\'in Monteiro, Patrik Vogt

arxiv:1512.01511 v1 · 2015-12-01 · physics.ed-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{XFVU5W2I6KHCVT7OIC3T4EKBQP}

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	2026-05-18T01:14:01.921770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b96b4edb48f28e2acfee40b73e114183f09ebd4df3fba07fffc54ae4ac618904

Aliases

arxiv: 1512.01511 · arxiv_version: 1512.01511v1 · doi: 10.48550/arxiv.1512.01511 · pith_short_12: XFVU5W2I6KHC · pith_short_16: XFVU5W2I6KHCVT7O · pith_short_8: XFVU5W2I

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/XFVU5W2I6KHCVT7OIC3T4EKBQP \
  | 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: b96b4edb48f28e2acfee40b73e114183f09ebd4df3fba07fffc54ae4ac618904

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0349b57e4f251e34804285b4319cd1c609286bab2e60af5183ba238a021e4c0c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-12-01T12:18:25Z",
    "title_canon_sha256": "e0995369572b45bf849eb2bb2ae3fbb087344de07f98baf49bcb85954024c25f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.01511",
    "kind": "arxiv",
    "version": 1
  }
}