Pith Number

pith:Y6SUIUAA

pith:2019:Y6SUIUAAWGAMASIVXQZ7TK2W3Q

not attested not anchored not stored refs pending

The isomorphism class of the shift map

Will Brian

arxiv:1904.09907 v1 · 2019-04-22 · math.GN · 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{Y6SUIUAAWGAMASIVXQZ7TK2W3Q}

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	2026-05-17T23:48:02.893723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7a5445000b180c04915bc33f9ab56dc11c00f19129b20ae0528b1d0251b5fc5

Aliases

arxiv: 1904.09907 · arxiv_version: 1904.09907v1 · doi: 10.48550/arxiv.1904.09907 · pith_short_12: Y6SUIUAAWGAM · pith_short_16: Y6SUIUAAWGAMASIV · pith_short_8: Y6SUIUAA

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/Y6SUIUAAWGAMASIVXQZ7TK2W3Q \
  | 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: c7a5445000b180c04915bc33f9ab56dc11c00f19129b20ae0528b1d0251b5fc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3372783e3302af95800160c8f231f4dd7bf707bd4d880faed97cae260be4ef66",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2019-04-22T14:49:38Z",
    "title_canon_sha256": "8133c093c5c55ad797916bc46e7b633b2e3cf4be5876f8621822ebc887ce67a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09907",
    "kind": "arxiv",
    "version": 1
  }
}