Pith Number

pith:VLMYIPNW

pith:2020:VLMYIPNWMZQEGMR6DWS4R2EGAS

not attested not anchored not stored refs pending

Towards a common performance and effectiveness terminology for digital proximity tracing applications

Bart Preneel, Carmela Troncoso, Dan Bogdanov, G\"oran Kirchner, Justus Benzler, Marcel Salathe, Raquel Lucas, Rui Oliveira, Viktor von Wyl, Wouter Lueks

arxiv:2012.12927 v1 · 2020-12-23 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VLMYIPNWMZQEGMR6DWS4R2EGAS}

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	2026-07-05T02:01:45.932771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aad9843db6666043323e1da5c8e88604aa0f377ad82b8a2bcaf18a7660e8ba1f

Aliases

arxiv: 2012.12927 · arxiv_version: 2012.12927v1 · doi: 10.48550/arxiv.2012.12927 · pith_short_12: VLMYIPNWMZQE · pith_short_16: VLMYIPNWMZQEGMR6 · pith_short_8: VLMYIPNW

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/VLMYIPNWMZQEGMR6DWS4R2EGAS \
  | 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: aad9843db6666043323e1da5c8e88604aa0f377ad82b8a2bcaf18a7660e8ba1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45852c5007130e3590a4a536fd267ed78f966b5f5fb6a7618814507a896135e9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2020-12-23T19:19:14Z",
    "title_canon_sha256": "9cff93a2955a91b76e737f3cfb4f261e49e6df41cb1ec44e3f85f032ba8a55d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.12927",
    "kind": "arxiv",
    "version": 1
  }
}