Pith Number

pith:JLLIFXJQ

pith:2026:JLLIFXJQDUODUAZEDU3CHA5K6A

not attested not anchored not stored refs pending

Optimizing vaccine allocation in an age-structured SIR model

Elisa Paparelli (SU), Lu\'is Almeida (SU), Romain Ducasse (UPCit\'e)

arxiv:2605.18256 v1 · 2026-05-18 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JLLIFXJQDUODUAZEDU3CHA5K6A}

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	2026-05-20T00:05:52.391322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ad682dd301d1c3a03241d362383aaf010c97790eab8330b9ec1a6fb5dfb61ae

Aliases

arxiv: 2605.18256 · arxiv_version: 2605.18256v1 · doi: 10.48550/arxiv.2605.18256 · pith_short_12: JLLIFXJQDUOD · pith_short_16: JLLIFXJQDUODUAZE · pith_short_8: JLLIFXJQ

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/JLLIFXJQDUODUAZEDU3CHA5K6A \
  | 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: 4ad682dd301d1c3a03241d362383aaf010c97790eab8330b9ec1a6fb5dfb61ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f9b4c42fd7ab66d67af82f4b4a04502b3e67148c541f3c39c18072fbefb9385",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-05-18T11:55:06Z",
    "title_canon_sha256": "92010a356c2fc81bdaf2e2a0e3e44e58e7c0a940140870160d8c50fe7f74188d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18256",
    "kind": "arxiv",
    "version": 1
  }
}