Pith Number

pith:HH26QPCD

pith:2019:HH26QPCDWONODZTLV4IKPXKZ74

not attested not anchored not stored refs pending

Subspace Packings -- Constructions and Bounds

Ferruh \"Ozbudak, Kamil Otal, Sascha Kurz, Tuvi Etzion

arxiv:1909.06081 v2 · 2019-09-13 · math.CO · cs.IT · 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{HH26QPCDWONODZTLV4IKPXKZ74}

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	2026-07-05T00:42:52.930485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39f5e83c43b39ae1e66baf10a7dd59ff31caa7bd3b3e01288559fff855c24ece

Aliases

arxiv: 1909.06081 · arxiv_version: 1909.06081v2 · doi: 10.48550/arxiv.1909.06081 · pith_short_12: HH26QPCDWONO · pith_short_16: HH26QPCDWONODZTL · pith_short_8: HH26QPCD

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/HH26QPCDWONODZTLV4IKPXKZ74 \
  | 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: 39f5e83c43b39ae1e66baf10a7dd59ff31caa7bd3b3e01288559fff855c24ece

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "852b0d35ce147efbaa4d23367b978c9f522a4c54870b756ae6d76d41a55a4947",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-09-13T08:26:03Z",
    "title_canon_sha256": "5db9be111bf696dd479967cabe3b44218648c6fc4097b5925196350eb13b3294"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.06081",
    "kind": "arxiv",
    "version": 2
  }
}