Pith Number

pith:2Q7DLZXQ

pith:2019:2Q7DLZXQFYMXB25ICGEVFGDL2Q

not attested not anchored not stored refs pending

Projections onto the canonical simplex with additional linear inequalities

L. Adam, V. M\'acha

arxiv:1905.03488 v2 · 2019-05-09 · math.OC · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Q7DLZXQFYMXB25ICGEVFGDL2Q}

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	2026-06-04T20:14:29.503281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d43e35e6f02e1970eba8118952986bd41135716ed9aff1427110a1b9e1589f24

Aliases

arxiv: 1905.03488 · arxiv_version: 1905.03488v2 · doi: 10.48550/arxiv.1905.03488 · pith_short_12: 2Q7DLZXQFYMX · pith_short_16: 2Q7DLZXQFYMXB25I · pith_short_8: 2Q7DLZXQ

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/2Q7DLZXQFYMXB25ICGEVFGDL2Q \
  | 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: d43e35e6f02e1970eba8118952986bd41135716ed9aff1427110a1b9e1589f24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b72ffa51e3c30b101c866e8c4e7d0f924ac099882ed781f437d5c4733ae9f1ec",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-05-09T08:38:09Z",
    "title_canon_sha256": "aa5dac320e1547bf4987d387b5d402dbabb925ed720dbf6ba4f996ace57aacd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03488",
    "kind": "arxiv",
    "version": 2
  }
}