Pith Number

pith:EX5D2G2S

pith:2017:EX5D2G2S54N2MS2XHFTM5A65IN

not attested not anchored not stored refs pending

A partial answer to the Demyanov-Ryabova conjecture

Aris Daniilidis, Colin Petitjean

arxiv:1702.00168 v2 · 2017-02-01 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EX5D2G2S54N2MS2XHFTM5A65IN}

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	2026-05-18T00:35:55.394944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25fa3d1b52ef1ba64b573966ce83dd4363d5680f2eea2ed5f2763993e985b606

Aliases

arxiv: 1702.00168 · arxiv_version: 1702.00168v2 · doi: 10.48550/arxiv.1702.00168 · pith_short_12: EX5D2G2S54N2 · pith_short_16: EX5D2G2S54N2MS2X · pith_short_8: EX5D2G2S

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/EX5D2G2S54N2MS2XHFTM5A65IN \
  | 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: 25fa3d1b52ef1ba64b573966ce83dd4363d5680f2eea2ed5f2763993e985b606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be1eb588c3e775416d53630704b76240a83b7edc2011c2fc9877d92454974d37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-02-01T09:07:35Z",
    "title_canon_sha256": "47d8235fb1d6a6ee6002786fd0bfa0f9a23845a6c43f2375ca45137b26206477"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00168",
    "kind": "arxiv",
    "version": 2
  }
}