Pith Number

pith:655I3HGM

pith:2013:655I3HGMPBCAV4HEGDSMLWE3JB

not attested not anchored not stored refs pending

Difference integrability conditions for parameterized linear difference and differential equations

Alexey Ovchinnikov

arxiv:1305.0452 v2 · 2013-05-02 · math.AC · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{655I3HGMPBCAV4HEGDSMLWE3JB}

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	2026-05-18T02:54:21.503131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f77a8d9ccc78440af0e430e4c5d89b4866609d4fe25454b3a6d3421306ad5ae2

Aliases

arxiv: 1305.0452 · arxiv_version: 1305.0452v2 · doi: 10.48550/arxiv.1305.0452 · pith_short_12: 655I3HGMPBCA · pith_short_16: 655I3HGMPBCAV4HE · pith_short_8: 655I3HGM

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/655I3HGMPBCAV4HEGDSMLWE3JB \
  | 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: f77a8d9ccc78440af0e430e4c5d89b4866609d4fe25454b3a6d3421306ad5ae2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38a80ee7447089472afe3ec04b22af96c9b6114ccb23764646ae45a9de6bd7ea",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2013-05-02T14:46:00Z",
    "title_canon_sha256": "af4e508b1f8f89b52e632c9c390f3478f5367a5019b6847afd70939caf152727"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0452",
    "kind": "arxiv",
    "version": 2
  }
}