Pith Number

pith:4GC45RC7

pith:2010:4GC45RC7ICHHXH4C3PBAHOQSI3

not attested not anchored not stored refs pending

Extraction-Controlled Quantum Cascade Lasers

Andreas Wacker

arxiv:1007.5407 v1 · 2010-07-30 · cond-mat.other

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4GC45RC7ICHHXH4C3PBAHOQSI3}

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	2026-05-18T04:41:45.482972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e185cec45f408e7b9f82dbc203ba1246c085262e3e9d960951dba6245a58661c

Aliases

arxiv: 1007.5407 · arxiv_version: 1007.5407v1 · doi: 10.48550/arxiv.1007.5407 · pith_short_12: 4GC45RC7ICHH · pith_short_16: 4GC45RC7ICHHXH4C · pith_short_8: 4GC45RC7

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/4GC45RC7ICHHXH4C3PBAHOQSI3 \
  | 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: e185cec45f408e7b9f82dbc203ba1246c085262e3e9d960951dba6245a58661c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5828cdfed58655ac70b558b9e58bd3ea1525462b98ddefb263d32350fcf87381",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2010-07-30T10:20:36Z",
    "title_canon_sha256": "912e00907174a5d76ac69e5825ed42c11232c4b55b4921785054d39cce29ac6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.5407",
    "kind": "arxiv",
    "version": 1
  }
}