Pith Number

pith:RQR6TG7W

pith:2013:RQR6TG7WFQL23CANPTCXG5TXK5

not attested not anchored not stored refs pending

An analytic solution to the equations governing the motion of a point mass with quadratic resistance and generalizations

Jochen Fr\"ohlich, Shouryya Ray

arxiv:1305.1283 v5 · 2013-05-06 · physics.class-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{RQR6TG7WFQL23CANPTCXG5TXK5}

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	2026-05-18T01:41:58.289148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c23e99bf62c17ad880d7cc57376775762639dcd6a9e379bd2f450e47e706987

Aliases

arxiv: 1305.1283 · arxiv_version: 1305.1283v5 · doi: 10.48550/arxiv.1305.1283 · pith_short_12: RQR6TG7WFQL2 · pith_short_16: RQR6TG7WFQL23CAN · pith_short_8: RQR6TG7W

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/RQR6TG7WFQL23CANPTCXG5TXK5 \
  | 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: 8c23e99bf62c17ad880d7cc57376775762639dcd6a9e379bd2f450e47e706987

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53ccef7c85270e42f29e5ad900b9d6998de5c7519ab34016d9e9a030f592e0d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2013-05-06T19:32:10Z",
    "title_canon_sha256": "d6efd7e2e6d2ebd1c872a3cfff01a2a9ba3eaaaba2813bcd5379ead06f209387"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1283",
    "kind": "arxiv",
    "version": 5
  }
}