Pith Number

pith:TGB3VEGG

pith:2015:TGB3VEGG7AIERPEHDQWU3SWWOB

not attested not anchored not stored refs pending

Optimization algorithms for the solution of the frictionless normal contact between rough surfaces

A. Bemporad, M. Paggi

arxiv:1506.00532 v1 · 2015-06-01 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TGB3VEGG7AIERPEHDQWU3SWWOB}

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	2026-05-18T01:59:54.320805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9983ba90c6f81048bc871c2d4dcad67046dec65936cb03af1e623e94ee997798

Aliases

arxiv: 1506.00532 · arxiv_version: 1506.00532v1 · doi: 10.48550/arxiv.1506.00532 · pith_short_12: TGB3VEGG7AIE · pith_short_16: TGB3VEGG7AIERPEH · pith_short_8: TGB3VEGG

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/TGB3VEGG7AIERPEHDQWU3SWWOB \
  | 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: 9983ba90c6f81048bc871c2d4dcad67046dec65936cb03af1e623e94ee997798

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6468987687ded25227f019492fd1d99f1664048789bcc4e35f99940a7c1b733b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2015-06-01T15:24:28Z",
    "title_canon_sha256": "2858401de86ca8028fa8576bfe6637c2396444ffe589920abeecada2e3d8cc18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.00532",
    "kind": "arxiv",
    "version": 1
  }
}