Pith Number

pith:DNJW3O4P

pith:2017:DNJW3O4P2VTDCCQO7IX4DIKZ35

not attested not anchored not stored refs pending

Hierarchical Subtask Discovery With Non-Negative Matrix Factorization

Adam C. Earle, Andrew M. Saxe, Benjamin Rosman

arxiv:1708.00463 v1 · 2017-08-01 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DNJW3O4P2VTDCCQO7IX4DIKZ35}

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	2026-05-18T00:38:47.088964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b536dbb8fd566310a0efa2fc1a159df7755b7ec510e50dd9712096c5ba60724

Aliases

arxiv: 1708.00463 · arxiv_version: 1708.00463v1 · doi: 10.48550/arxiv.1708.00463 · pith_short_12: DNJW3O4P2VTD · pith_short_16: DNJW3O4P2VTDCCQO · pith_short_8: DNJW3O4P

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/DNJW3O4P2VTDCCQO7IX4DIKZ35 \
  | 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: 1b536dbb8fd566310a0efa2fc1a159df7755b7ec510e50dd9712096c5ba60724

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b59a22e3b275286d9307564ecc079fe24418dffa4fee58b2d905061f57312a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2017-08-01T18:19:40Z",
    "title_canon_sha256": "ce7925250299b4323fabe8b53098aa2186947bbf21903d9b04c009b666103237"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.00463",
    "kind": "arxiv",
    "version": 1
  }
}