Pith Number

pith:AT7YF2OL

pith:2004:AT7YF2OLPSSNL4VRHUV4L6RF3O

not attested not anchored not stored refs pending

Generalized PSK in Space Time Coding

Guangyue Han

arxiv:math/0401157 v1 · 2004-01-14 · math.CO · cs.IT · math.IT · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AT7YF2OLPSSNL4VRHUV4L6RF3O}

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	2026-05-18T00:58:55.987892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04ff82e9cb7ca4d5f2b13d2bc5fa25db934132f7dc86fac062093dd6a1263314

Aliases

arxiv: math/0401157 · arxiv_version: math/0401157v1 · doi: 10.48550/arxiv.math/0401157 · pith_short_12: AT7YF2OLPSSN · pith_short_16: AT7YF2OLPSSNL4VR · pith_short_8: AT7YF2OL

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/AT7YF2OLPSSNL4VRHUV4L6RF3O \
  | 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: 04ff82e9cb7ca4d5f2b13d2bc5fa25db934132f7dc86fac062093dd6a1263314

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fb985ad2948571adc858e98205ed3e940efba05fdc4d798e02915d71375b9ec",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.OC"
    ],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "2004-01-14T16:56:55Z",
    "title_canon_sha256": "4ea1dc719869febf8e6d2c4f2a0deb94e51aefaadb109a841ba382fb887fa66f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0401157",
    "kind": "arxiv",
    "version": 1
  }
}