Pith Number

pith:Q5F7TEUM

pith:2013:Q5F7TEUMCIXPDSTXOA2CR5UCED

not attested not anchored not stored refs pending

On an estimate in the subspace perturbation problem

Albrecht Seelmann

arxiv:1310.4360 v1 · 2013-10-16 · math.SP · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q5F7TEUMCIXPDSTXOA2CR5UCED}

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	2026-05-18T00:10:48.427925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

874bf9928c122ef1ca77703428f68220fedb05b1937ff8f16dc795398eb57589

Aliases

arxiv: 1310.4360 · arxiv_version: 1310.4360v1 · doi: 10.48550/arxiv.1310.4360 · pith_short_12: Q5F7TEUMCIXP · pith_short_16: Q5F7TEUMCIXPDSTX · pith_short_8: Q5F7TEUM

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/Q5F7TEUMCIXPDSTXOA2CR5UCED \
  | 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: 874bf9928c122ef1ca77703428f68220fedb05b1937ff8f16dc795398eb57589

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94279044ad6e7656b32beef5a9853f073501d21adf2a2cf675c79b95e813990a",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2013-10-16T13:05:25Z",
    "title_canon_sha256": "8bed982dbbcd08e833d7605f78b96b7a169305fff295d136d82abbfdf666c4de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.4360",
    "kind": "arxiv",
    "version": 1
  }
}