Pith Number

pith:CM6V6JRA

pith:2018:CM6V6JRAXAVUHUC76U4FMSZZL5

not attested not anchored not stored refs pending

GOPA: Geometrical Optics Positioning Algorithm Using Spatial Color Coded LEDs (Extended Version)

Ata Chizari, Hamid Hosseinianfar, Jawad A. Salehi

arxiv:1807.06931 v1 · 2018-06-24 · 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{CM6V6JRAXAVUHUC76U4FMSZZL5}

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	2026-05-18T00:10:25.294334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

133d5f2620b82b43d05ff538564b395f5aab4048c5d427d9f0e0797bb99e65dc

Aliases

arxiv: 1807.06931 · arxiv_version: 1807.06931v1 · doi: 10.48550/arxiv.1807.06931 · pith_short_12: CM6V6JRAXAVU · pith_short_16: CM6V6JRAXAVUHUC7 · pith_short_8: CM6V6JRA

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/CM6V6JRAXAVUHUC76U4FMSZZL5 \
  | 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: 133d5f2620b82b43d05ff538564b395f5aab4048c5d427d9f0e0797bb99e65dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ade77c189f3c15f27352971aee27c3a7a776a1bb9487a1281c574c7f474902b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-06-24T17:10:28Z",
    "title_canon_sha256": "aaf1bb4586306853056e167bc26cc5745c7c0640fe75989d26b19f144a80977b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06931",
    "kind": "arxiv",
    "version": 1
  }
}