Pith Number

pith:QHDEHMIK

pith:2014:QHDEHMIK546X4D7VVHT2B6U4JD

not attested not anchored not stored refs pending

Frames for subspaces of $\mathbb{C}^N$

David Widemann, Matthew Hirn

arxiv:1410.5206 v1 · 2014-10-20 · cs.IT · math.CA · 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{QHDEHMIK546X4D7VVHT2B6U4JD}

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	2026-05-18T02:39:46.609513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81c643b10aef3d7e0ff5a9e7a0fa9c48db42d7e5f304a626a2a6ccde8b1c3894

Aliases

arxiv: 1410.5206 · arxiv_version: 1410.5206v1 · doi: 10.48550/arxiv.1410.5206 · pith_short_12: QHDEHMIK546X · pith_short_16: QHDEHMIK546X4D7V · pith_short_8: QHDEHMIK

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/QHDEHMIK546X4D7VVHT2B6U4JD \
  | 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: 81c643b10aef3d7e0ff5a9e7a0fa9c48db42d7e5f304a626a2a6ccde8b1c3894

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5163f67b7e2b3b10fe624f9810e3f72667f1bdc19629cf73e0e165428e22e920",
    "cross_cats_sorted": [
      "math.CA",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-10-20T09:49:00Z",
    "title_canon_sha256": "948dd2b5c475f3e2e90ef3a3db88f2e95e1b0aad3392131d383e4dc57206b970"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.5206",
    "kind": "arxiv",
    "version": 1
  }
}