Pith Number

pith:CU6RNGAN

pith:2016:CU6RNGANX4TR4PYHOTP3KT65NK

not attested not anchored not stored refs pending

Approximate implicitization using linear algebra

Oliver J. D. Barrowclough, Tor Dokken

arxiv:1605.08638 v1 · 2016-05-27 · math.NA · 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{CU6RNGANX4TR4PYHOTP3KT65NK}

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	2026-05-18T01:13:29.415510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

153d16980dbf271e3f0774dfb54fdd6ab5686af9fb37719918b0d7c3bf70862f

Aliases

arxiv: 1605.08638 · arxiv_version: 1605.08638v1 · doi: 10.48550/arxiv.1605.08638 · pith_short_12: CU6RNGANX4TR · pith_short_16: CU6RNGANX4TR4PYH · pith_short_8: CU6RNGAN

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/CU6RNGANX4TR4PYHOTP3KT65NK \
  | 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: 153d16980dbf271e3f0774dfb54fdd6ab5686af9fb37719918b0d7c3bf70862f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "daf9686a27e444d1aa8c141305fa63c3a9fa4cc5cc3a648a6ff9ce6279ce0fbf",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-05-27T13:45:27Z",
    "title_canon_sha256": "7f90c06b8fb90504d8399cbe32dfb0eb73076f1c262788bc587bffe1dde0f636"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.08638",
    "kind": "arxiv",
    "version": 1
  }
}