Pith Number

pith:FQUUHNPQ

pith:2017:FQUUHNPQ5JF5ASRJE3GLOFK4GN

not attested not anchored not stored refs pending

FM Backscatter: Enabling Connected Cities and Smart Fabrics

Anran Wang, Joshua R. Smith, Shyamnath Gollakota, Vamsi Talla, Vikram Iyer

arxiv:1702.07044 v2 · 2017-02-22 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FQUUHNPQ5JF5ASRJE3GLOFK4GN}

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	2026-05-18T00:49:57.296967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c2943b5f0ea4bd04a2926ccb7155c335d6aec9f87db0e69187d93f0a8ae9171

Aliases

arxiv: 1702.07044 · arxiv_version: 1702.07044v2 · doi: 10.48550/arxiv.1702.07044 · pith_short_12: FQUUHNPQ5JF5 · pith_short_16: FQUUHNPQ5JF5ASRJ · pith_short_8: FQUUHNPQ

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/FQUUHNPQ5JF5ASRJE3GLOFK4GN \
  | 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: 2c2943b5f0ea4bd04a2926ccb7155c335d6aec9f87db0e69187d93f0a8ae9171

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b41aa4497f6fd52241bc816e2a96225493619c9c918db88d214f76893cba1b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2017-02-22T23:37:34Z",
    "title_canon_sha256": "badc10fb3047c0aea73efc71c948ae119b602994cdfc937bfb81cb5cb45387b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07044",
    "kind": "arxiv",
    "version": 2
  }
}