Pith Number

pith:FKE2PFVN

pith:2020:FKE2PFVNQOJW6M7ENNGYI2GY7E

not attested not anchored not stored refs pending

Trust and Transparency in Contact Tracing Applications

Aleksandra Mojsilovic, Kush R. Varshney, Michael Hind, Stacy Hobson

arxiv:2006.11356 v1 · 2020-06-19 · cs.CY · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FKE2PFVNQOJW6M7ENNGYI2GY7E}

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	2026-07-05T01:11:49.364803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a89a796ad83936f33e46b4d8468d8f90548e09491f375ae8f178c0c5eca45b5

Aliases

arxiv: 2006.11356 · arxiv_version: 2006.11356v1 · doi: 10.48550/arxiv.2006.11356 · pith_short_12: FKE2PFVNQOJW · pith_short_16: FKE2PFVNQOJW6M7E · pith_short_8: FKE2PFVN

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/FKE2PFVNQOJW6M7ENNGYI2GY7E \
  | 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: 2a89a796ad83936f33e46b4d8468d8f90548e09491f375ae8f178c0c5eca45b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "880a0a5f256a7a05fd0a9cbe38c33968fae756bb32ce9edff75c4652ad2f316a",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2020-06-19T20:29:24Z",
    "title_canon_sha256": "c1aca5b4b289c56a9e5b320dad66e8aa0b536d2db254ad9d8afe05915b631339"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.11356",
    "kind": "arxiv",
    "version": 1
  }
}