Pith Number

pith:TFBQ3KXX

pith:2015:TFBQ3KXX2QFNK5IEHPRRSBHOSH

not attested not anchored not stored refs pending

eOMP: Finding Sparser Representation by Recursively Orthonormalizing the Remaining Atoms

Yao Wang, Yuanyi Xue

arxiv:1502.03805 v1 · 2015-02-12 · cs.NA · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TFBQ3KXX2QFNK5IEHPRRSBHOSH}

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	2026-05-18T02:27:08.796609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99430daaf7d40ad575043be31904ee91da533f898b636c5517e6ae4b73802e82

Aliases

arxiv: 1502.03805 · arxiv_version: 1502.03805v1 · doi: 10.48550/arxiv.1502.03805 · pith_short_12: TFBQ3KXX2QFN · pith_short_16: TFBQ3KXX2QFNK5IE · pith_short_8: TFBQ3KXX

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/TFBQ3KXX2QFNK5IEHPRRSBHOSH \
  | 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: 99430daaf7d40ad575043be31904ee91da533f898b636c5517e6ae4b73802e82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebc4e73e6d87091dda42247e919a764e3ce2e901c9b3c83a6a6f302069a3c36a",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2015-02-12T20:50:06Z",
    "title_canon_sha256": "c782d384f273c4212fba02613fd001231e7fe416df42b8220e20d693311cde6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03805",
    "kind": "arxiv",
    "version": 1
  }
}