Pith Number

pith:GMBR64FT

pith:2020:GMBR64FTKNCK3MYT535EGYDAHR

not attested not anchored not stored refs pending

Learning Enabled Dense Space-division Multiplexing through a Single Multimode Fibre

Chao Lu, Lei Su, Luming Zhao, Michael Ruddlesden, Pengfei Fan, Yufei Wang

arxiv:2002.01788 v1 · 2020-02-05 · physics.optics · 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{GMBR64FTKNCK3MYT535EGYDAHR}

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	2026-07-05T00:38:40.461438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33031f70b35344adb313eefa4360603c4c5dd3491161c04fd2ad24da9fd860b5

Aliases

arxiv: 2002.01788 · arxiv_version: 2002.01788v1 · doi: 10.48550/arxiv.2002.01788 · pith_short_12: GMBR64FTKNCK · pith_short_16: GMBR64FTKNCK3MYT · pith_short_8: GMBR64FT

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/GMBR64FTKNCK3MYT535EGYDAHR \
  | 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: 33031f70b35344adb313eefa4360603c4c5dd3491161c04fd2ad24da9fd860b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "360469bea81f4b3de20151ac14a0b3c8b67ced0672f40b6cb0b767eaf6d573d5",
    "cross_cats_sorted": [
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-02-05T13:49:55Z",
    "title_canon_sha256": "d0f4a6e4df3d6178efc2bd46ff21542a471d94c893247a504b7f05617fc126cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.01788",
    "kind": "arxiv",
    "version": 1
  }
}