pith. the verified trust layer for science. sign in
Pith Number

pith:34OPK6FK

pith:2014:34OPK6FKAC4LU6QMH7TSKQPXMU
not attested not anchored not stored refs pending

Free Collisions in a Microgravity Many-Particle Experiment. IV. - Three-Dimensional Analysis of Collision Properties

J\"urgen Blum, Ren\'e Weidling

arxiv:1412.3236 v1 · 2014-12-10 · astro-ph.EP

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{34OPK6FKAC4LU6QMH7TSKQPXMU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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 2026-05-18T01:41:20.168742Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

df1cf578aa00b8ba7a0c3fe72541f7652d9d55c20739df3ba57565550bfef58b

Aliases

arxiv: 1412.3236 · arxiv_version: 1412.3236v1 · doi: 10.48550/arxiv.1412.3236 · pith_short_12: 34OPK6FKAC4L · pith_short_16: 34OPK6FKAC4LU6QM · pith_short_8: 34OPK6FK
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/34OPK6FKAC4LU6QMH7TSKQPXMU \
  | 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: df1cf578aa00b8ba7a0c3fe72541f7652d9d55c20739df3ba57565550bfef58b
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "819a30278c5493841bb8b45e3289e4c6b927de452f581f75f989a9e148cc3431",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-12-10T09:39:36Z",
    "title_canon_sha256": "670d9f007f5361421e50f5ff953e99053dc4d5dcffea066e9d230897853a8876"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.3236",
    "kind": "arxiv",
    "version": 1
  }
}