Pith Number

pith:QVBLVI4C

pith:2014:QVBLVI4CZTRXW5RGKKZDFHZ6BJ

not attested not anchored not stored refs pending

Practical approximate projection schemes in greedy signal space methods

Alison Kingman, Chris Garnatz, Deanna Needell, James LaManna, Shenyinying Tu, Xiaoyi Gu

arxiv:1409.1527 v1 · 2014-09-04 · math.NA · cs.IT · math.IT

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVBLVI4CZTRXW5RGKKZDFHZ6BJ}

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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	2026-05-18T02:43:26.720589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8542baa382cce37b762652b2329f3e0a5006cbaddb82aa5f1d0e3d026e889603

Aliases

arxiv: 1409.1527 · arxiv_version: 1409.1527v1 · doi: 10.48550/arxiv.1409.1527 · pith_short_12: QVBLVI4CZTRX · pith_short_16: QVBLVI4CZTRXW5RG · pith_short_8: QVBLVI4C

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/QVBLVI4CZTRXW5RGKKZDFHZ6BJ \
  | 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: 8542baa382cce37b762652b2329f3e0a5006cbaddb82aa5f1d0e3d026e889603

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6a7d266b7e2942047622c117c0096dc007473854c7e3a647924753d5d7e5f75",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-09-04T18:48:08Z",
    "title_canon_sha256": "9cbc47941d458991d81ee9bc9af778762e64a7b0fd9dfcf34483b51f96f67a0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.1527",
    "kind": "arxiv",
    "version": 1
  }
}