pith. sign in
Pith Number

pith:HTYMPPER

pith:2013:HTYMPPERI77KHXXXPJUX6NZGK4
not attested not anchored not stored refs pending

Nice enumerations and extreme amenability

Aleksander Ivanov

arxiv:1310.7116 v2 · 2013-10-26 · math.LO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{HTYMPPERI77KHXXXPJUX6NZGK4}

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 2026-05-18T02:39:32.158386Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

3cf0c7bc9147fea3def77a697f3726570b97af362bad37e4350bc37660ee68e2

Aliases

arxiv: 1310.7116 · arxiv_version: 1310.7116v2 · doi: 10.48550/arxiv.1310.7116 · pith_short_12: HTYMPPERI77K · pith_short_16: HTYMPPERI77KHXXX · pith_short_8: HTYMPPER
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/HTYMPPERI77KHXXXPJUX6NZGK4 \
  | 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: 3cf0c7bc9147fea3def77a697f3726570b97af362bad37e4350bc37660ee68e2
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "06fbfb9d821f61cc9776576c6bf411c152618ffee0f04b59be2cc8f41ad0598d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-10-26T14:24:04Z",
    "title_canon_sha256": "29a8c83136a1e813a23552e46565c31051d2c5b74af1a2915594b45292b23892"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.7116",
    "kind": "arxiv",
    "version": 2
  }
}