Pith Number

pith:4ULORIWX

pith:2015:4ULORIWXPLCBS42WAEVSMNJ4J7

not attested not anchored not stored refs pending

A comparison of heroin epidemic models

Nicholas A. Battista

arxiv:1510.04581 v1 · 2015-10-15 · 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{4ULORIWXPLCBS42WAEVSMNJ4J7}

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	2026-05-18T01:30:06.789821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e516e8a2d77ac4197356012b26353c4ff9e6ca4659b2dca92600fd7b3633de31

Aliases

arxiv: 1510.04581 · arxiv_version: 1510.04581v1 · doi: 10.48550/arxiv.1510.04581 · pith_short_12: 4ULORIWXPLCB · pith_short_16: 4ULORIWXPLCBS42W · pith_short_8: 4ULORIWX

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/4ULORIWXPLCBS42WAEVSMNJ4J7 \
  | 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: e516e8a2d77ac4197356012b26353c4ff9e6ca4659b2dca92600fd7b3633de31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b96bce587c502aae39409d86faf64183f9d87d5c18876932253d000e6aeddaa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-10-15T15:26:44Z",
    "title_canon_sha256": "a21897bbbf7ceaaa597ec94f763b5b7195b2f3c3d42ef1f7d743448b98f4519f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.04581",
    "kind": "arxiv",
    "version": 1
  }
}