Pith Number

pith:47Y7NJM5

pith:2018:47Y7NJM5X6XMB6PLK3OF2ABWR5

not attested not anchored not stored refs pending

Geometry of quadratic maps via convex relaxation

Anatoly Dymarsky, Boris Polyak, Elena Gryazina, Sergei Volodin

arxiv:1810.00896 v1 · 2018-10-01 · 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{47Y7NJM5X6XMB6PLK3OF2ABWR5}

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	2026-05-18T00:04:19.692109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7f1f6a59dbfaec0f9eb56dc5d00368f620d0c2ab9b25959b3648a96c25ef190

Aliases

arxiv: 1810.00896 · arxiv_version: 1810.00896v1 · doi: 10.48550/arxiv.1810.00896 · pith_short_12: 47Y7NJM5X6XM · pith_short_16: 47Y7NJM5X6XMB6PL · pith_short_8: 47Y7NJM5

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/47Y7NJM5X6XMB6PLK3OF2ABWR5 \
  | 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: e7f1f6a59dbfaec0f9eb56dc5d00368f620d0c2ab9b25959b3648a96c25ef190

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43c3c9fb54a493ca32d22a0edc80ac3b6b1ecd87c5afbce552f5e04cee17a579",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-10-01T18:00:48Z",
    "title_canon_sha256": "214db7594d05d0acbcc4b3751d15a4c0b314c6baa9c0a85842bba67497f0c5e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00896",
    "kind": "arxiv",
    "version": 1
  }
}