Pith Number

pith:T5QBOWFG

pith:2017:T5QBOWFGYULUMSO6UCK5CT3KMD

not attested not anchored not stored refs pending

Efficient Calculation of Regular Simplex Gradients

Ian Coope, Rachael Tappenden

arxiv:1710.01427 v2 · 2017-10-04 · 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{T5QBOWFGYULUMSO6UCK5CT3KMD}

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	2026-05-18T00:09:52.929497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f601758a6c5174649dea095d14f6a60ecf2c3ff29e72203c5f1aced36d2c8ee

Aliases

arxiv: 1710.01427 · arxiv_version: 1710.01427v2 · doi: 10.48550/arxiv.1710.01427 · pith_short_12: T5QBOWFGYULU · pith_short_16: T5QBOWFGYULUMSO6 · pith_short_8: T5QBOWFG

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/T5QBOWFGYULUMSO6UCK5CT3KMD \
  | 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: 9f601758a6c5174649dea095d14f6a60ecf2c3ff29e72203c5f1aced36d2c8ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc7882cb532ae072786605c086849d131aa40776853becbf204b1786295c0c6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-10-04T00:29:13Z",
    "title_canon_sha256": "c537a99e6609659223c87dffd865835cd23819ba512442a654fdcc9e4a0ca925"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.01427",
    "kind": "arxiv",
    "version": 2
  }
}