Pith Number

pith:5H2FI5YN

pith:2005:5H2FI5YN75KFRXDJFVDJVXFHY2

not attested not anchored not stored refs pending

On an authentication scheme based on the Root Problem in the braid group

Boaz Tsaban

arxiv:cs/0509059 v3 · 2005-09-19 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5H2FI5YN75KFRXDJFVDJVXFHY2}

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	2026-05-18T04:37:23.232284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9f454770dff5458dc692d469adca7c6adf899384bad62061dc55bb71430bfee

Aliases

arxiv: cs/0509059 · arxiv_version: cs/0509059v3 · doi: 10.48550/arxiv.cs/0509059 · pith_short_12: 5H2FI5YN75KF · pith_short_16: 5H2FI5YN75KFRXDJ · pith_short_8: 5H2FI5YN

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/5H2FI5YN75KFRXDJFVDJVXFHY2 \
  | 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: e9f454770dff5458dc692d469adca7c6adf899384bad62061dc55bb71430bfee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "551919373e5830644479e4d8178d288fc29b4d5bd4b2144e37b3f5e846665e93",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CR",
    "submitted_at": "2005-09-19T19:43:14Z",
    "title_canon_sha256": "dd9f1e6646349268e36841059e1840ea3eef0a9be5c10c5cfae34f1275ebd485"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0509059",
    "kind": "arxiv",
    "version": 3
  }
}