Pith Number

pith:7EV55EW3

pith:2019:7EV55EW3Y77RBWXGCTINKIEMFT

not attested not anchored not stored refs pending

Accurate Measurement of Propagation Delay in a Multi-Span Optical Link

Florian Azendorf, Michael H. Eiselt

arxiv:1912.05180 v1 · 2019-12-11 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7EV55EW3Y77RBWXGCTINKIEMFT}

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	2026-07-05T00:25:33.075577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f92bde92dbc7ff10dae614d0d5208c2cee7c2dc33dcfb8f473f67db6f0d1fe92

Aliases

arxiv: 1912.05180 · arxiv_version: 1912.05180v1 · doi: 10.48550/arxiv.1912.05180 · pith_short_12: 7EV55EW3Y77R · pith_short_16: 7EV55EW3Y77RBWXG · pith_short_8: 7EV55EW3

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/7EV55EW3Y77RBWXGCTINKIEMFT \
  | 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: f92bde92dbc7ff10dae614d0d5208c2cee7c2dc33dcfb8f473f67db6f0d1fe92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16376ee115a7cbf9263ae2270bf2513a19242d15bfc1d62c5e776e15193f3c88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-12-11T08:54:42Z",
    "title_canon_sha256": "8cae508ba42747f98d171a034dceb6c93346a8fb0ca08f731e2bf60b262e2ca1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.05180",
    "kind": "arxiv",
    "version": 1
  }
}