Pith Number

pith:BBINSNAD

pith:2018:BBINSNADSSIVT7VW7EGDTFRLYK

not attested not anchored not stored refs pending

Profinite topologies

Alfredo Costa, Jorge Almeida

arxiv:1804.08004 v1 · 2018-04-21 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BBINSNADSSIVT7VW7EGDTFRLYK}

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	2026-05-18T00:17:49.840898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0850d93403949159feb6f90c39962bc2bbd4388996a1542fa9b1b06c5818ae38

Aliases

arxiv: 1804.08004 · arxiv_version: 1804.08004v1 · doi: 10.48550/arxiv.1804.08004 · pith_short_12: BBINSNADSSIV · pith_short_16: BBINSNADSSIVT7VW · pith_short_8: BBINSNAD

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/BBINSNADSSIVT7VW7EGDTFRLYK \
  | 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: 0850d93403949159feb6f90c39962bc2bbd4388996a1542fa9b1b06c5818ae38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7c8a0dfe3ed28953cd9d05dacdd2f62edd33ac202568fdbeed8f907f0f918a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2018-04-21T18:14:10Z",
    "title_canon_sha256": "b03f0f4746629de851bcdc61ce218a5ed5f880ccbdc87c54d118c64cc238ed68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08004",
    "kind": "arxiv",
    "version": 1
  }
}