Pith Number

pith:E74LHCPF

pith:2009:E74LHCPFEPXH7XPGIRBOSV5U2K

not attested not anchored not stored refs pending

First direct measurement of optical phonons in 2D plasma crystals

A. V. Ivlev, G. E. Morfill, H. M. Thomas, L. Cou\"edel, S. K. Zhdanov, V. Nosenko

arxiv:0907.5145 v1 · 2009-07-29 · 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{E74LHCPFEPXH7XPGIRBOSV5U2K}

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	2026-05-18T02:12:46.528750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27f8b389e523ee7fdde64442e957b4d2aa090b6bf088c1ba4ad0cf57aadca261

Aliases

arxiv: 0907.5145 · arxiv_version: 0907.5145v1 · doi: 10.48550/arxiv.0907.5145 · pith_short_12: E74LHCPFEPXH · pith_short_16: E74LHCPFEPXH7XPG · pith_short_8: E74LHCPF

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/E74LHCPFEPXH7XPGIRBOSV5U2K \
  | 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: 27f8b389e523ee7fdde64442e957b4d2aa090b6bf088c1ba4ad0cf57aadca261

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33050841d89c94e7f8a2de0773008e6985f69b7f8449e5a040717623777b4473",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2009-07-29T14:36:13Z",
    "title_canon_sha256": "477189045e7c91b9709bbedbfb9c164a35b3d267a1ffd8c4519de638be7a42c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.5145",
    "kind": "arxiv",
    "version": 1
  }
}