Pith Number

pith:XDM6QYHC

pith:2019:XDM6QYHCSQB2P7UPGWDQLICBJJ

not attested not anchored not stored refs pending

Picosecond pulses from a mid-infrared interband cascade laser

Aaron Maxwell Andrews, Anne Schade, Benedikt Schwarz, Gottfried Strasser, Hermann Detz, Johannes Hillbrand, Maximilian Beiser, Robert Weih, Sven H\"ofling

arxiv:1907.00346 v1 · 2019-06-30 · physics.app-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDM6QYHCSQB2P7UPGWDQLICBJJ}

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	2026-07-05T02:02:50.637412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8d9e860e29403a7fe8f358705a0414a636cf122328780d409bbf30c37aa4ece

Aliases

arxiv: 1907.00346 · arxiv_version: 1907.00346v1 · doi: 10.48550/arxiv.1907.00346 · pith_short_12: XDM6QYHCSQB2 · pith_short_16: XDM6QYHCSQB2P7UP · pith_short_8: XDM6QYHC

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/XDM6QYHCSQB2P7UPGWDQLICBJJ \
  | 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: b8d9e860e29403a7fe8f358705a0414a636cf122328780d409bbf30c37aa4ece

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90f5e4fa3368047ffafec22303d9319ac87792c42af31adf06b5aa75b53328e2",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2019-06-30T09:41:50Z",
    "title_canon_sha256": "9bf8ef36dbf3283b2e8153e9a4509a9ec542cdd1c9ba2261477746f08a2cbf1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00346",
    "kind": "arxiv",
    "version": 1
  }
}