Pith Number

pith:DTGF5PYY

pith:2015:DTGF5PYY2RMGELGA7ZAXGR7GHD

not attested not anchored not stored refs pending

A Polynomial-Time Attack on the BBCRS Scheme

Alain Couvreur, Ayoub Otmani, Jean-Pierre Tillich, Val\'erie Gauthier-Umana

arxiv:1501.03736 v1 · 2015-01-15 · cs.CR · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DTGF5PYY2RMGELGA7ZAXGR7GHD}

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	2026-05-18T02:29:17.928245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ccc5ebf18d458622cc0fe417347e638df08bda79fee900d4991896c4102cd10

Aliases

arxiv: 1501.03736 · arxiv_version: 1501.03736v1 · doi: 10.48550/arxiv.1501.03736 · pith_short_12: DTGF5PYY2RMG · pith_short_16: DTGF5PYY2RMGELGA · pith_short_8: DTGF5PYY

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/DTGF5PYY2RMGELGA7ZAXGR7GHD \
  | 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: 1ccc5ebf18d458622cc0fe417347e638df08bda79fee900d4991896c4102cd10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "059666db9da63779197ba016a66b437520ec86dcc4c7b387707b051799e8e870",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-01-15T16:40:27Z",
    "title_canon_sha256": "578bde5c78c609aafe1d92519e002dca08594fec8f172879497d6c109259d86a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03736",
    "kind": "arxiv",
    "version": 1
  }
}