Pith Number

pith:Y4Z2AZPK

pith:2018:Y4Z2AZPKFRSQ7DYSSDQTFFLKAU

not attested not anchored not stored refs pending

Computational performance of a projection and rescaling algorithm

Javier Pena, Negar Soheili

arxiv:1803.07107 v2 · 2018-03-19 · 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{Y4Z2AZPKFRSQ7DYSSDQTFFLKAU}

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	2026-05-17T23:44:32.663738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c733a065ea2c650f8f1290e132956a0526b388b5bccbab56b0a1446c967cbc7c

Aliases

arxiv: 1803.07107 · arxiv_version: 1803.07107v2 · doi: 10.48550/arxiv.1803.07107 · pith_short_12: Y4Z2AZPKFRSQ · pith_short_16: Y4Z2AZPKFRSQ7DYS · pith_short_8: Y4Z2AZPK

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/Y4Z2AZPKFRSQ7DYSSDQTFFLKAU \
  | 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: c733a065ea2c650f8f1290e132956a0526b388b5bccbab56b0a1446c967cbc7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fb93087ba0758408e32552cfd39bf0f3009cab79edd74ca409ea8237f285de4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-03-19T18:31:27Z",
    "title_canon_sha256": "5b9bc34ee407b8cb6044fcae6f91a9af0901a9b38723a5d47ea9f8d4f20a6ed0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07107",
    "kind": "arxiv",
    "version": 2
  }
}