Pith Number

pith:KXY3CA4L

pith:2009:KXY3CA4L4VMTWUIKUPFG7QD4H2

not attested not anchored not stored refs pending

Recovering Signals from Lowpass Data

Volker Pohl, Yonina C. Eldar

arxiv:0907.3576 v1 · 2009-07-21 · cs.IT · 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{KXY3CA4L4VMTWUIKUPFG7QD4H2}

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	2026-05-18T03:33:14.482687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55f1b1038be5593b510aa3ca6fc07c3eae2202f47c35406573fce99d8e63162b

Aliases

arxiv: 0907.3576 · arxiv_version: 0907.3576v1 · doi: 10.48550/arxiv.0907.3576 · pith_short_12: KXY3CA4L4VMT · pith_short_16: KXY3CA4L4VMTWUIK · pith_short_8: KXY3CA4L

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/KXY3CA4L4VMTWUIKUPFG7QD4H2 \
  | 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: 55f1b1038be5593b510aa3ca6fc07c3eae2202f47c35406573fce99d8e63162b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59a80142d3c037808689416272c12b9a8e114b48ab40f9c3866fb48ca4b160a2",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-07-21T08:27:24Z",
    "title_canon_sha256": "b0674c72dce1689ddc69b611de7a2ad8e50f867b0d7147b5e6c07d042c446beb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3576",
    "kind": "arxiv",
    "version": 1
  }
}