Pith Number

pith:7ORA2V5H

pith:2016:7ORA2V5HQXVY2YDC3ILV5EPCUU

not attested not anchored not stored refs pending

Continuous extension of functions from countable sets

V. Mykhaylyuk

arxiv:1604.06178 v1 · 2016-04-21 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ORA2V5HQXVY2YDC3ILV5EPCUU}

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	2026-05-18T01:16:32.358753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fba20d57a785eb8d6062da175e91e2a52436378598183cc233eee288eb4b8f5e

Aliases

arxiv: 1604.06178 · arxiv_version: 1604.06178v1 · doi: 10.48550/arxiv.1604.06178 · pith_short_12: 7ORA2V5HQXVY · pith_short_16: 7ORA2V5HQXVY2YDC · pith_short_8: 7ORA2V5H

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/7ORA2V5HQXVY2YDC3ILV5EPCUU \
  | 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: fba20d57a785eb8d6062da175e91e2a52436378598183cc233eee288eb4b8f5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edb8bdcd27c2a3f4a0a5f99f2d45ecc650c8eae03a5754fad3cbe140de852ff1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2016-04-21T04:57:34Z",
    "title_canon_sha256": "9020e9841ac3d44e429bb87ec4be8b8f1d0cc2342fd330d97c7ff3df24312851"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06178",
    "kind": "arxiv",
    "version": 1
  }
}