Pith Number

pith:EGJJXEVC

pith:2016:EGJJXEVC3X77ZQUN26ZQOJ4K5S

not attested not anchored not stored refs pending

Structurable equivalence relations

Alexander S. Kechris, Ruiyuan Chen

arxiv:1606.01995 v5 · 2016-06-07 · 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{EGJJXEVC3X77ZQUN26ZQOJ4K5S}

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	2026-05-18T00:04:24.369495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21929b92a2ddfffcc28dd7b307278aec9e631bce5a0648e10764b612b421cc74

Aliases

arxiv: 1606.01995 · arxiv_version: 1606.01995v5 · doi: 10.48550/arxiv.1606.01995 · pith_short_12: EGJJXEVC3X77 · pith_short_16: EGJJXEVC3X77ZQUN · pith_short_8: EGJJXEVC

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/EGJJXEVC3X77ZQUN26ZQOJ4K5S \
  | 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: 21929b92a2ddfffcc28dd7b307278aec9e631bce5a0648e10764b612b421cc74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d90b153635a7b62cafdd94919682fb6a4e24fba9766f400b44d4e5106f545709",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-06-07T01:45:03Z",
    "title_canon_sha256": "5e30af1e049c2b6e5a874a97d3784dc1540eadf300c6670619e43ea50b28336f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.01995",
    "kind": "arxiv",
    "version": 5
  }
}