Pith Number

pith:XBRPPIXC

pith:2011:XBRPPIXCISCJYNB5MN372HLDSV

not attested not anchored not stored refs pending

Middle tunnels by splitting

Darryl McCullough, Sangbum Cho

arxiv:1108.3425 v1 · 2011-08-17 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XBRPPIXCISCJYNB5MN372HLDSV}

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	2026-05-18T04:15:17.889402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b862f7a2e244849c343d6377fd1d63955e592e683a1df55f2686e1205fe1fd0b

Aliases

arxiv: 1108.3425 · arxiv_version: 1108.3425v1 · doi: 10.48550/arxiv.1108.3425 · pith_short_12: XBRPPIXCISCJ · pith_short_16: XBRPPIXCISCJYNB5 · pith_short_8: XBRPPIXC

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/XBRPPIXCISCJYNB5MN372HLDSV \
  | 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: b862f7a2e244849c343d6377fd1d63955e592e683a1df55f2686e1205fe1fd0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "591be3f2134902051d2e7a8149c11f275f9714a6093a498878eab42f8775e4ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2011-08-17T08:48:06Z",
    "title_canon_sha256": "1f2f268917e06240de7e33e7bd125e713aa7bff4a09182fe8d0bec85c5933c67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3425",
    "kind": "arxiv",
    "version": 1
  }
}