Pith Number

pith:NRWY2FPC

pith:2019:NRWY2FPCAHCCPD4QPWDVUXFAMQ

not attested not anchored not stored refs pending

Free-space optical delay line using space-time wave packets

Ayman F. Abouraddy, Basanta Bhaduri, Murat Yessenov, Peter J. Delfyett

arxiv:1910.05616 v1 · 2019-10-12 · physics.optics · physics.app-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{NRWY2FPCAHCCPD4QPWDVUXFAMQ}

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	2026-07-05T02:10:58.067814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c6d8d15e201c4278f907d875a5ca0643f3bdcde0538b6e69326336bef1ad52c

Aliases

arxiv: 1910.05616 · arxiv_version: 1910.05616v1 · doi: 10.48550/arxiv.1910.05616 · pith_short_12: NRWY2FPCAHCC · pith_short_16: NRWY2FPCAHCCPD4Q · pith_short_8: NRWY2FPC

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/NRWY2FPCAHCCPD4QPWDVUXFAMQ \
  | 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: 6c6d8d15e201c4278f907d875a5ca0643f3bdcde0538b6e69326336bef1ad52c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "415d0dea400e01f2c0416a781e26db94e7db3f5d1f837b4310f380aa399a5b43",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-10-12T18:20:29Z",
    "title_canon_sha256": "1df3bfd9940c6c02a075f52e784b60bd4c7c9bf7cbf230dc09a291ae00af87b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.05616",
    "kind": "arxiv",
    "version": 1
  }
}