Pith Number

pith:2OT6BAMW

pith:2021:2OT6BAMW6YFY6NPOPA447X55IZ

not attested not anchored not stored refs pending

Picosecond ultrasonics with a free-running dual-comb laser

Abdelmjid Benayad, Alexander Nussbaum-Lapping, Benjamin Willenberg, Bertrand Audoin, Carolin P. Bauer, Christopher R. Phillips, Francois Bruno, Justinas Pupeikis, Matthias Golling, Mike Hettich, Patrice Camy, Sandro L. Camenzind, Ursula Keller

arxiv:2109.00457 v1 · 2021-09-01 · 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{2OT6BAMW6YFY6NPOPA447X55IZ}

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	2026-07-05T03:28:25.086402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3a7e08196f60b8f35ee7839cfdfbd46702f65c4ac43036abd350e59d189b644

Aliases

arxiv: 2109.00457 · arxiv_version: 2109.00457v1 · doi: 10.48550/arxiv.2109.00457 · pith_short_12: 2OT6BAMW6YFY · pith_short_16: 2OT6BAMW6YFY6NPO · pith_short_8: 2OT6BAMW

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/2OT6BAMW6YFY6NPOPA447X55IZ \
  | 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: d3a7e08196f60b8f35ee7839cfdfbd46702f65c4ac43036abd350e59d189b644

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a957a3e3624975f8f6c168f1fff9b0784375052721a5200668adc3254736b85",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-09-01T15:58:56Z",
    "title_canon_sha256": "3dfda68606b14d3bc0dd28947cb7a2dacc453cdc535f41e2b4d8098677f12cb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00457",
    "kind": "arxiv",
    "version": 1
  }
}