Pith Number

pith:GUAMI4DL

pith:2017:GUAMI4DL3DJXIWOVNVATDISHKF

not attested not anchored not stored refs pending

Mathematical modelling of variable porosity coatings for controlled drug release

David King, Giuseppe Pontrelli, Sean McGinty

arxiv:1701.04989 v1 · 2017-01-18 · physics.flu-dyn · q-bio.TO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GUAMI4DL3DJXIWOVNVATDISHKF}

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	2026-05-18T00:43:39.428101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3500c4706bd8d37459d56d4131a2475145a1133e8582f491d8954900399500bc

Aliases

arxiv: 1701.04989 · arxiv_version: 1701.04989v1 · doi: 10.48550/arxiv.1701.04989 · pith_short_12: GUAMI4DL3DJX · pith_short_16: GUAMI4DL3DJXIWOV · pith_short_8: GUAMI4DL

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/GUAMI4DL3DJXIWOVNVATDISHKF \
  | 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: 3500c4706bd8d37459d56d4131a2475145a1133e8582f491d8954900399500bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4f7c537f23d79a3c126beb1b9218a8af315bc2e3924ced23615d68e85529259",
    "cross_cats_sorted": [
      "q-bio.TO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2017-01-18T09:24:23Z",
    "title_canon_sha256": "8d049758b41bbe38333043c7505c620a1be3039fc7050bb83d3887c4a5ecf8de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04989",
    "kind": "arxiv",
    "version": 1
  }
}