Pith Number

pith:MMRNNVRD

pith:2017:MMRNNVRDT2QLXHS7HWJYC23D5V

not attested not anchored not stored refs pending

On a problem by Hans Feichtinger

Anirudha Poria, Kasso A. Okoudjou, Radu Balan

arxiv:1705.06392 v3 · 2017-05-18 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MMRNNVRDT2QLXHS7HWJYC23D5V}

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	2026-05-17T23:58:50.266066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6322d6d6239ea0bb9e5f3d93816b63ed5825a3d1ae0efdb901d3ac74bfe6ab63

Aliases

arxiv: 1705.06392 · arxiv_version: 1705.06392v3 · doi: 10.48550/arxiv.1705.06392 · pith_short_12: MMRNNVRDT2QL · pith_short_16: MMRNNVRDT2QLXHS7 · pith_short_8: MMRNNVRD

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/MMRNNVRDT2QLXHS7HWJYC23D5V \
  | 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: 6322d6d6239ea0bb9e5f3d93816b63ed5825a3d1ae0efdb901d3ac74bfe6ab63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e7af954968ea39093eb578eb526bb40d0daeb700cddd43e199642b7d8b494be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-05-18T02:15:31Z",
    "title_canon_sha256": "fc88d1280e6d94837cdd46b1edcd0304e9f223f8b074275ab515c7e3e8cae65f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06392",
    "kind": "arxiv",
    "version": 3
  }
}