Pith Number

pith:WJF2TIQE

pith:2015:WJF2TIQEB2JAJ4RUGCAHSVMZVE

not attested not anchored not stored refs pending

Channel Vector Subspace Estimation from Low-Dimensional Projections

Giuseppe Caire, Saeid Haghighatshoar

arxiv:1509.07469 v2 · 2015-09-24 · cs.IT · math.IT · stat.ML

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

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	2026-05-18T01:10:23.710897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b24ba9a2040e9204f2343080795599a9003eb47f7c2d9f507521e3ad39664c64

Aliases

arxiv: 1509.07469 · arxiv_version: 1509.07469v2 · doi: 10.48550/arxiv.1509.07469 · pith_short_12: WJF2TIQEB2JA · pith_short_16: WJF2TIQEB2JAJ4RU · pith_short_8: WJF2TIQE

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/WJF2TIQEB2JAJ4RUGCAHSVMZVE \
  | 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: b24ba9a2040e9204f2343080795599a9003eb47f7c2d9f507521e3ad39664c64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "314d062620b3029b80ded88c83377204ec019632993672602243da0323425be6",
    "cross_cats_sorted": [
      "math.IT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-09-24T18:39:57Z",
    "title_canon_sha256": "bd79bfe6d554896976afc7d9c4f6f7d8b81f2b575b8ccfdf9456a4ed695e72b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07469",
    "kind": "arxiv",
    "version": 2
  }
}