Pith Number

pith:ZQJTEFCM

pith:2015:ZQJTEFCMW3YY6RRK7QLV7UOSCG

not attested not anchored not stored refs pending

Learning and Optimization with Submodular Functions

Bharath Sankaran, David Kale, Liron Cohen, Marjan Ghazvininejad, Xinran He

arxiv:1505.01576 v1 · 2015-05-07 · cs.LG

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	2026-05-18T02:16:48.431607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc1332144cb6f18f462afc175fd1d211bcbe02844514656d0fe39a102069988a

Aliases

arxiv: 1505.01576 · arxiv_version: 1505.01576v1 · doi: 10.48550/arxiv.1505.01576 · pith_short_12: ZQJTEFCMW3YY · pith_short_16: ZQJTEFCMW3YY6RRK · pith_short_8: ZQJTEFCM

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/ZQJTEFCMW3YY6RRK7QLV7UOSCG \
  | 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: cc1332144cb6f18f462afc175fd1d211bcbe02844514656d0fe39a102069988a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68fb4948d269597da4f27e8a79edb6b01416f8d0f4d807eea8a9439423feb2be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-05-07T04:04:02Z",
    "title_canon_sha256": "4c4cfd726441fcdc4e31629d3292e564a8523960049f0c1dd2af89576815f2f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01576",
    "kind": "arxiv",
    "version": 1
  }
}