Pith Number

pith:BJM7N42B

pith:2013:BJM7N42BA4PLLHY5663IHGC4CQ

not attested not anchored not stored refs pending

Approximating the Little Grothendieck Problem over the Orthogonal and Unitary Groups

Afonso S. Bandeira, Amit Singer, Christopher Kennedy

arxiv:1308.5207 v4 · 2013-08-23 · cs.DS · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BJM7N42BA4PLLHY5663IHGC4CQ}

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	2026-05-18T01:30:55.645562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a59f6f341071eb59f1df7b683985c14325564ef7424e3a0366c4118d9febdcb

Aliases

arxiv: 1308.5207 · arxiv_version: 1308.5207v4 · doi: 10.48550/arxiv.1308.5207 · pith_short_12: BJM7N42BA4PL · pith_short_16: BJM7N42BA4PLLHY5 · pith_short_8: BJM7N42B

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/BJM7N42BA4PLLHY5663IHGC4CQ \
  | 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: 0a59f6f341071eb59f1df7b683985c14325564ef7424e3a0366c4118d9febdcb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6de8926cfdc2fda10baa7f32e393950618ad06ce8a0b883b97c34d9fa516050",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-08-23T18:53:30Z",
    "title_canon_sha256": "53d488a5d1599bcccdeb79782c33af1ec2c9ad24ad2ba5bda4051b5cb1470e2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5207",
    "kind": "arxiv",
    "version": 4
  }
}