Pith Number

pith:BIFGR5TZ

pith:2014:BIFGR5TZQH567RNU33R5FHXAYD

not attested not anchored not stored refs pending

The One-Sided Isometric Extension Problem

Micha Wasem, Norbert Hungerb\"uhler

arxiv:1410.0232 v4 · 2014-10-01 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BIFGR5TZQH567RNU33R5FHXAYD}

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	2026-05-18T01:08:27.486726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a0a68f67981fbefc5b4dee3d29ee0c0d29858bbce1119536dd86a7b21f07e12

Aliases

arxiv: 1410.0232 · arxiv_version: 1410.0232v4 · doi: 10.48550/arxiv.1410.0232 · pith_short_12: BIFGR5TZQH56 · pith_short_16: BIFGR5TZQH567RNU · pith_short_8: BIFGR5TZ

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/BIFGR5TZQH567RNU33R5FHXAYD \
  | 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: 0a0a68f67981fbefc5b4dee3d29ee0c0d29858bbce1119536dd86a7b21f07e12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faa033e5f1a7fa98c295c5c21ea38a5db9751e865f4f8bacc91ace34689f5f37",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-10-01T14:12:47Z",
    "title_canon_sha256": "f404eb863b56899aaebb29520238dbcbfb44a7b24c3bf5a31d26b6aec23f28ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.0232",
    "kind": "arxiv",
    "version": 4
  }
}