Pith Number

pith:BKGDFZ2D

pith:2016:BKGDFZ2D2EDP5SBZ7KBRPK66NP

not attested not anchored not stored refs pending

On projectional skeletons in Va\v{s}\'ak spaces

Ond\v{r}ej F.K. Kalenda

arxiv:1602.02558 v1 · 2016-02-08 · 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{BKGDFZ2D2EDP5SBZ7KBRPK66NP}

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	2026-05-18T00:29:47.102887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a8c32e743d106fec839fa8317abde6bdf455364e40a3277dfad7be4965dec42

Aliases

arxiv: 1602.02558 · arxiv_version: 1602.02558v1 · doi: 10.48550/arxiv.1602.02558 · pith_short_12: BKGDFZ2D2EDP · pith_short_16: BKGDFZ2D2EDP5SBZ · pith_short_8: BKGDFZ2D

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/BKGDFZ2D2EDP5SBZ7KBRPK66NP \
  | 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: 0a8c32e743d106fec839fa8317abde6bdf455364e40a3277dfad7be4965dec42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "498a87c60e2375406b4aa2ccfce5c6d135e145f48749032bf9c25c24a6bdab80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2016-02-08T13:25:59Z",
    "title_canon_sha256": "2491f02f559eb02e219e7c701f3967a7583d10148426136d76b6f379b2184c41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02558",
    "kind": "arxiv",
    "version": 1
  }
}