Pith Number

pith:36QBZSLZ

pith:2018:36QBZSLZLNXAM37A37ABEVO76V

not attested not anchored not stored refs pending

An FE-dABCD algorithm for elliptic optimal control problems with constraints on the gradient of the state and control

Bo Yu, Xiaoliang Song, Xiaotong Chen, Zixuan Chen

arxiv:1810.01923 v1 · 2018-10-03 · math.OC

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

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	2026-05-18T00:04:06.949993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfa01cc9795b6e066fe0dfc01255dff569cc67977ab9d3f48a220e4171e45482

Aliases

arxiv: 1810.01923 · arxiv_version: 1810.01923v1 · doi: 10.48550/arxiv.1810.01923 · pith_short_12: 36QBZSLZLNXA · pith_short_16: 36QBZSLZLNXAM37A · pith_short_8: 36QBZSLZ

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/36QBZSLZLNXAM37A37ABEVO76V \
  | 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: dfa01cc9795b6e066fe0dfc01255dff569cc67977ab9d3f48a220e4171e45482

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a722332a75ef4d1afc5aea0a35fecce45089c9935139d4dbca0575641fc6dac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-10-03T19:25:18Z",
    "title_canon_sha256": "8f11a52110e2d7a55f6711b2efc487741c375e1d530852761d1d7b8669d47ec8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.01923",
    "kind": "arxiv",
    "version": 1
  }
}