Pith Number

pith:QLXLVPWU

pith:2014:QLXLVPWUIVMIMOBEMIEKDI62LL

not attested not anchored not stored refs pending

Measurement of the speed of sound by observation of the Mach cones in a complex plasma under microgravity conditions

(2) Research Group Complex Plasma, (3) Max-Planck-Institut f\"ur Extraterrestrische Physik, (4) Department of Chemical, A. M. Lipaev (1), A. V. Ivlev (3), Berkeley), Biomolecular Engineering, D. I. Zhukhovitskii (1), DLR, G. E. Morfill (3) ((1) Joint Institute of High Temperatures, Germany, Giessenbachstrasse Garching, Graves Lab, H. M. Thomas (2), Moscow, M. Schwabe (4), Oberpfaffenhofen, Russia, Russian Academy of Sciences, University of California, V. E. Fortov (1), V. I. Molotkov (1), V. N. Naumkin (1), Wessling

arxiv:1411.7641 v5 · 2014-11-27 · physics.plasm-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{QLXLVPWUIVMIMOBEMIEKDI62LL}

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	2026-05-18T01:49:55.858286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82eebabed445588638246208a1a3da5ad5275de168e2b0307a410832796cc8aa

Aliases

arxiv: 1411.7641 · arxiv_version: 1411.7641v5 · doi: 10.48550/arxiv.1411.7641 · pith_short_12: QLXLVPWUIVMI · pith_short_16: QLXLVPWUIVMIMOBE · pith_short_8: QLXLVPWU

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/QLXLVPWUIVMIMOBEMIEKDI62LL \
  | 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: 82eebabed445588638246208a1a3da5ad5275de168e2b0307a410832796cc8aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59eb2c3e62d508197f3771104a1941d5b17f889c2d23b3b51b709083533fe0b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2014-11-27T16:55:30Z",
    "title_canon_sha256": "787ff9b4d62136e4192d6681cdb033369a8d70ddd445dea41dc63dd60b8a6e1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.7641",
    "kind": "arxiv",
    "version": 5
  }
}