Pith Number

pith:44TAEB5J

pith:2020:44TAEB5JIB2UYS3BEFALXU6ZFG

not attested not anchored not stored refs pending

Length-optimal tool path planning for freeform surfaces with preferred feed directions

Charlie C. L. Wang, Hsi-Yung Feng, Qiang Zou

arxiv:2009.02660 v1 · 2020-09-06 · cs.GR · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44TAEB5JIB2UYS3BEFALXU6ZFG}

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	2026-07-05T01:33:24.622387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7260207a940754c4b612140bbd3d92980a29c5bf8123a0671155526d51379fd

Aliases

arxiv: 2009.02660 · arxiv_version: 2009.02660v1 · doi: 10.48550/arxiv.2009.02660 · pith_short_12: 44TAEB5JIB2U · pith_short_16: 44TAEB5JIB2UYS3B · pith_short_8: 44TAEB5J

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/44TAEB5JIB2UYS3BEFALXU6ZFG \
  | 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: e7260207a940754c4b612140bbd3d92980a29c5bf8123a0671155526d51379fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f1e2a62d1159e4493023d549b7fc4b330e0e3eaebcfbb8a04071fb737838e0f",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2020-09-06T07:31:29Z",
    "title_canon_sha256": "1e6e02105021feb1b872634c496d435ae8dcb67f6a4ec2675cc4bde153477f83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.02660",
    "kind": "arxiv",
    "version": 1
  }
}