Pith Number

pith:W3D4ZQA5

pith:2011:W3D4ZQA53IC36FJNBHOFZGN3A7

not attested not anchored not stored refs pending

Demodulating Subsampled Direct Sequence Spread Spectrum Signals using Compressive Signal Processing

Karsten Fyhn, S{\o}ren Holdt Jensen, Thomas Arildsen, Torben Larsen

arxiv:1110.5176 v4 · 2011-10-24 · cs.IT · cs.NI · 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{W3D4ZQA53IC36FJNBHOFZGN3A7}

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	2026-05-18T03:43:40.455294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6c7ccc01dda05bf152d09dc5c99bb07df9ffa023f27b5d53535c71a7739d21d

Aliases

arxiv: 1110.5176 · arxiv_version: 1110.5176v4 · doi: 10.48550/arxiv.1110.5176 · pith_short_12: W3D4ZQA53IC3 · pith_short_16: W3D4ZQA53IC36FJN · pith_short_8: W3D4ZQA5

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/W3D4ZQA53IC36FJNBHOFZGN3A7 \
  | 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: b6c7ccc01dda05bf152d09dc5c99bb07df9ffa023f27b5d53535c71a7739d21d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73d132764383b56a88a9639a25b1cfcf56789329a81b960dea536004f66885c0",
    "cross_cats_sorted": [
      "cs.NI",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-10-24T09:35:02Z",
    "title_canon_sha256": "bc70a812a53b426b1817b96cf1c7c6a7b37864728ce1b1933a291ba687ff9d6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.5176",
    "kind": "arxiv",
    "version": 4
  }
}