Pith Number

pith:ZXDFYM2O

pith:2016:ZXDFYM2OKR4PHSVEUSIKUVDXG7

not attested not anchored not stored refs pending

Equations in oligomorphic clones and the Constraint Satisfaction Problem for $\omega$-categorical structures

Libor Barto, Michael Kompatscher, Michael Pinsker, Miroslav Ol\v{s}\'ak, Trung Van Pham

arxiv:1612.07551 v3 · 2016-12-22 · cs.LO · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZXDFYM2OKR4PHSVEUSIKUVDXG7}

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	2026-05-18T00:05:05.835209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdc65c334e5478f3caa4a490aa547737d44cede1c8856d761c41ce18d3c62d86

Aliases

arxiv: 1612.07551 · arxiv_version: 1612.07551v3 · doi: 10.48550/arxiv.1612.07551 · pith_short_12: ZXDFYM2OKR4P · pith_short_16: ZXDFYM2OKR4PHSVE · pith_short_8: ZXDFYM2O

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/ZXDFYM2OKR4PHSVEUSIKUVDXG7 \
  | 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: cdc65c334e5478f3caa4a490aa547737d44cede1c8856d761c41ce18d3c62d86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa8953d93f658654410ab11ed01997009620ab1ebfb40719655362f6136f681e",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-12-22T11:36:36Z",
    "title_canon_sha256": "d55836d51e571db687c8ccc694c9271f95aaa1892719a40490410f744958681d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.07551",
    "kind": "arxiv",
    "version": 3
  }
}