Pith Number

pith:H33UBV66

pith:2015:H33UBV66DXBNWHMAZFGFEKYRPW

not attested not anchored not stored refs pending

Defending against Sybil Devices in Crowdsourced Mapping Services

Ana Nika, Ben Y. Zhao, Bolun Wang, Gang Wang, Haitao Zheng, Tianyi Wang

arxiv:1508.00837 v2 · 2015-08-04 · cs.SI · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H33UBV66DXBNWHMAZFGFEKYRPW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:16:09.744687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ef740d7de1dc2db1d80c94c522b117d8b152ba3ad9b6a78d0335174af85f8c7

Aliases

arxiv: 1508.00837 · arxiv_version: 1508.00837v2 · doi: 10.48550/arxiv.1508.00837 · pith_short_12: H33UBV66DXBN · pith_short_16: H33UBV66DXBNWHMA · pith_short_8: H33UBV66

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/H33UBV66DXBNWHMAZFGFEKYRPW \
  | 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: 3ef740d7de1dc2db1d80c94c522b117d8b152ba3ad9b6a78d0335174af85f8c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0104a2cd30192c1401ff372ab20d194b207afab2e9178ca7bdbc3a71f78b9d8",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2015-08-04T17:11:01Z",
    "title_canon_sha256": "4ebf5505275dbfdfb80e75787005f5bbc8fd13bc25da03741d87c09ccfaf5b16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00837",
    "kind": "arxiv",
    "version": 2
  }
}