Pith Number

pith:L6IONECG

pith:2017:L6IONECGVT2HVP4SQ3XIVK5G2A

not attested not anchored not stored refs pending

On the Computation of Complex-valued Gradients with Application to Statistically Optimum Beamforming

Christoph Boeddeker, Jahn Heymann, Lukas Drude, Patrick Hanebrink, Reinhold Haeb-Umbach

arxiv:1701.00392 v2 · 2017-01-02 · cs.NA · cs.CE

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	2026-05-17T23:54:41.902811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f90e69046acf47abf9286ee8aaba6d0278845de5d59053dcc57b7335aca4b5e

Aliases

arxiv: 1701.00392 · arxiv_version: 1701.00392v2 · doi: 10.48550/arxiv.1701.00392 · pith_short_12: L6IONECGVT2H · pith_short_16: L6IONECGVT2HVP4S · pith_short_8: L6IONECG

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/L6IONECGVT2HVP4SQ3XIVK5G2A \
  | 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: 5f90e69046acf47abf9286ee8aaba6d0278845de5d59053dcc57b7335aca4b5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7295e292213e3659200e71857b5943363d0a283acd3bc8cdb56d3c4208aca4a9",
    "cross_cats_sorted": [
      "cs.CE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2017-01-02T14:03:38Z",
    "title_canon_sha256": "c41c80809b08aea0f23ee5aa5abf11b36f0c531a4ba05eec42b41a4c16308f55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00392",
    "kind": "arxiv",
    "version": 2
  }
}