Pith Number

pith:TWCEDGX4

pith:2017:TWCEDGX4M274KQCILY5I72HHMK

not attested not anchored not stored refs pending

Total variation regularization of multi-material topology optimization

Christian Clason, Florian Kruse, Karl Kunisch

arxiv:1708.06165 v3 · 2017-08-21 · 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{TWCEDGX4M274KQCILY5I72HHMK}

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	2026-05-18T00:16:50.644118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d84419afc66bfc540485e3a8fe8e76296c374e17a23969b45aa143f40723e8b

Aliases

arxiv: 1708.06165 · arxiv_version: 1708.06165v3 · doi: 10.48550/arxiv.1708.06165 · pith_short_12: TWCEDGX4M274 · pith_short_16: TWCEDGX4M274KQCI · pith_short_8: TWCEDGX4

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/TWCEDGX4M274KQCILY5I72HHMK \
  | 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: 9d84419afc66bfc540485e3a8fe8e76296c374e17a23969b45aa143f40723e8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7dff9311dd03ca020fc6288d4bef76196a1cf8bca3158dfa1e96df6c3b27d5a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-08-21T11:49:48Z",
    "title_canon_sha256": "d30ed3309b29b5b1213bfe8543f06184671a638ae0a18cf2e2b3e3053243303b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06165",
    "kind": "arxiv",
    "version": 3
  }
}