Pith Number

pith:EL3HVNC6

pith:2020:EL3HVNC6747ADXMW56BJ7KVPKR

not attested not anchored not stored refs pending

A socio-technical framework for digital contact tracing

Andreas Theodorou, Manuela Battaglini, Ricardo Vinuesa, Virginia Dignum

arxiv:2005.08370 v1 · 2020-05-17 · 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{EL3HVNC6747ADXMW56BJ7KVPKR}

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	2026-07-05T01:03:30.865200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22f67ab45eff3e01dd96ef829faaaf5445fc8e9473000bb4cb610a618b94304f

Aliases

arxiv: 2005.08370 · arxiv_version: 2005.08370v1 · doi: 10.48550/arxiv.2005.08370 · pith_short_12: EL3HVNC6747A · pith_short_16: EL3HVNC6747ADXMW · pith_short_8: EL3HVNC6

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/EL3HVNC6747ADXMW56BJ7KVPKR \
  | 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: 22f67ab45eff3e01dd96ef829faaaf5445fc8e9473000bb4cb610a618b94304f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ce7ccbd9669aaa7628f357741c4a68c88cc27cc2691ae9342d2d8478c6eb7ea",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2020-05-17T21:05:23Z",
    "title_canon_sha256": "0d8ed947718e7d92751963b152045cac13eabb4b6f72f00279c9457044ccd1ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.08370",
    "kind": "arxiv",
    "version": 1
  }
}