Pith Number

pith:U23TEWFI

pith:2017:U23TEWFI5WUT7SRGZIPTA7UCOQ

not attested not anchored not stored refs pending

The problem of camouflaging via mirror reflections

Alexander Plakhov

arxiv:1702.04199 v1 · 2017-02-13 · math.MG · 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{U23TEWFI5WUT7SRGZIPTA7UCOQ}

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	2026-05-18T00:31:41.628716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6b73258a8eda93fca26ca1f307e82741e0b423fcc15a709726322a5aa6721e9

Aliases

arxiv: 1702.04199 · arxiv_version: 1702.04199v1 · doi: 10.48550/arxiv.1702.04199 · pith_short_12: U23TEWFI5WUT · pith_short_16: U23TEWFI5WUT7SRG · pith_short_8: U23TEWFI

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/U23TEWFI5WUT7SRGZIPTA7UCOQ \
  | 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: a6b73258a8eda93fca26ca1f307e82741e0b423fcc15a709726322a5aa6721e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00c514e7795eeb87e2363e133b79ecf8f178a1c3b825b398c0e6cb6f0f23d7aa",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2017-02-13T14:16:35Z",
    "title_canon_sha256": "64b033ac91c9fb4aacba69ffe32d325f124b96d26bf9ac5aef9cbfceba39323d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04199",
    "kind": "arxiv",
    "version": 1
  }
}