Pith Number

pith:ODZOD2NS

pith:2015:ODZOD2NSJE4R2UJCQSR4BYYRAD

not attested not anchored not stored refs pending

Large scale three-dimensional topology optimisation of heat sinks cooled by natural convection

Joe Alexandersen, Niels Aage, Ole Sigmund

arxiv:1508.04596 v1 · 2015-08-19 · physics.flu-dyn · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ODZOD2NSJE4R2UJCQSR4BYYRAD}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:05:51.667611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70f2e1e9b249391d512284a3c0e31100ec95ac5eab14542e2486b829d494c435

Aliases

arxiv: 1508.04596 · arxiv_version: 1508.04596v1 · doi: 10.48550/arxiv.1508.04596 · pith_short_12: ODZOD2NSJE4R · pith_short_16: ODZOD2NSJE4R2UJC · pith_short_8: ODZOD2NS

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/ODZOD2NSJE4R2UJCQSR4BYYRAD \
  | 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: 70f2e1e9b249391d512284a3c0e31100ec95ac5eab14542e2486b829d494c435

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b33452869779e6b64079d0b0a96be69c0d71b13cd509b10f7b1132cf9fa32e88",
    "cross_cats_sorted": [
      "cs.CE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2015-08-19T11:03:06Z",
    "title_canon_sha256": "0bac4e3dba25175ea41d596f9aaab9300299b8eaf1521509a206b2e9aed53bbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04596",
    "kind": "arxiv",
    "version": 1
  }
}