Pith Number

pith:CJPBEUDK

pith:2026:CJPBEUDKPEFJQYVPXAHDUBWA7E

not attested not anchored not stored refs pending

Multi-type branching inference on contact trees with application to COVID-19

Augustine Okolie, Eno Akarawakc, Isaac Ajiboye, Johannes M\"uller

arxiv:2606.19405 v1 · 2026-06-17 · q-bio.QM · math.DS · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CJPBEUDKPEFJQYVPXAHDUBWA7E}

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	2026-06-19T16:12:24.759361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

125e12506a790a9862afb80e3a06c0f90c15c1e87e45da81c12c2ebdee36e3ac

Aliases

arxiv: 2606.19405 · arxiv_version: 2606.19405v1 · doi: 10.48550/arxiv.2606.19405 · pith_short_12: CJPBEUDKPEFJ · pith_short_16: CJPBEUDKPEFJQYVP · pith_short_8: CJPBEUDK

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/CJPBEUDKPEFJQYVPXAHDUBWA7E \
  | 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: 125e12506a790a9862afb80e3a06c0f90c15c1e87e45da81c12c2ebdee36e3ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b8164d870ba040fc47940813ed6bf7142974f76a2594bf58fb3e85e1dedfcdd",
    "cross_cats_sorted": [
      "math.DS",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2026-06-17T13:02:50Z",
    "title_canon_sha256": "bcab97be0d2f9c3e8056a2d163c4cd5b361ae47422d06b9f93657c03178018e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19405",
    "kind": "arxiv",
    "version": 1
  }
}