Pith Number

pith:5SB3EASM

pith:2016:5SB3EASM7BSJYKI5JBNITKKMDD

not attested not anchored not stored refs pending

MC^2: A Two-Phase Algorithm for Leveraged Matrix Completion

Armin Eftekhari, Michael B. Wakin, Rachel A. Ward

arxiv:1609.01795 v3 · 2016-09-07 · 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{5SB3EASM7BSJYKI5JBNITKKMDD}

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	2026-05-18T00:30:17.508649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec83b2024cf8649c291d485a89a94c18c87e4e17c98271ba7d9bd3e81fc5924f

Aliases

arxiv: 1609.01795 · arxiv_version: 1609.01795v3 · doi: 10.48550/arxiv.1609.01795 · pith_short_12: 5SB3EASM7BSJ · pith_short_16: 5SB3EASM7BSJYKI5 · pith_short_8: 5SB3EASM

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/5SB3EASM7BSJYKI5JBNITKKMDD \
  | 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: ec83b2024cf8649c291d485a89a94c18c87e4e17c98271ba7d9bd3e81fc5924f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9b2d4f0e7afd7f06d006822b1307266d3c63483d16b813ddb692f75da8659e6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-09-07T01:25:51Z",
    "title_canon_sha256": "c87f99e56cae57c7e00ea4de139dde58212a76c0f359db2c89e25f34445a9323"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.01795",
    "kind": "arxiv",
    "version": 3
  }
}