Pith Number

pith:U6UCL7OB

pith:2018:U6UCL7OBJSKOHCAMF3NK4J5WSU

not attested not anchored not stored refs pending

Free-Space Data-Carrying Bendable Light Communications

Andong Wang, Jian Wang, Long Zhu

arxiv:1801.07929 v1 · 2018-01-24 · 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{U6UCL7OBJSKOHCAMF3NK4J5WSU}

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	2026-05-18T00:25:10.527387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7a825fdc14c94e3880c2edaae27b6950a15ecdb47b00c080be727f642ed3eac

Aliases

arxiv: 1801.07929 · arxiv_version: 1801.07929v1 · doi: 10.48550/arxiv.1801.07929 · pith_short_12: U6UCL7OBJSKO · pith_short_16: U6UCL7OBJSKOHCAM · pith_short_8: U6UCL7OB

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/U6UCL7OBJSKOHCAMF3NK4J5WSU \
  | 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: a7a825fdc14c94e3880c2edaae27b6950a15ecdb47b00c080be727f642ed3eac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc1bd33db343b0fc15a10f8aaebe52ad615c6d55fe74e38e25b87b01629ba1a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-01-24T11:14:21Z",
    "title_canon_sha256": "a52103c44d741d4c14b0988dfd060b1924016d872d3cfae3bd0858982b9d5be8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07929",
    "kind": "arxiv",
    "version": 1
  }
}