Pith Number

pith:SJDCGD6M

pith:2012:SJDCGD6MBD2WTOM6KE2ROIBQKG

not attested not anchored not stored refs pending

1-Bit Matrix Completion

Ewout van den Berg, Mark A. Davenport, Mary Wootters, Yaniv Plan

arxiv:1209.3672 v3 · 2012-09-17 · math.ST · cs.IT · math.IT · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SJDCGD6MBD2WTOM6KE2ROIBQKG}

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	2026-05-18T02:48:43.731139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9246230fcc08f569b99e5135172030518a354ed46b1d4a3924182352b0837a1d

Aliases

arxiv: 1209.3672 · arxiv_version: 1209.3672v3 · doi: 10.48550/arxiv.1209.3672 · pith_short_12: SJDCGD6MBD2W · pith_short_16: SJDCGD6MBD2WTOM6 · pith_short_8: SJDCGD6M

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/SJDCGD6MBD2WTOM6KE2ROIBQKG \
  | 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: 9246230fcc08f569b99e5135172030518a354ed46b1d4a3924182352b0837a1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92693f00ee068edc90865a3aa2ada6c6229c4d126c905c251fbfb52aa100edcd",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-09-17T14:47:31Z",
    "title_canon_sha256": "54d25086aa654effafc38e29e6bcf844c3e72d9c34d7e234ba6ba521796366d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3672",
    "kind": "arxiv",
    "version": 3
  }
}