Pith Number

pith:RKPY4LRI

pith:2017:RKPY4LRIZECVZMRIETYFI7UVZ2

not attested not anchored not stored refs pending

Recovery of Compactly Supported Functions from Spectrogram Measurements via Lifting

Aditya Viswanathan, Mark Iwen, Sami Merhi

arxiv:1706.01799 v1 · 2017-06-06 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RKPY4LRIZECVZMRIETYFI7UVZ2}

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	2026-05-18T00:42:55.913040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a9f8e2e28c9055cb22824f0547e95ceb6be3cfc2a8f83a745033279f9f901c0

Aliases

arxiv: 1706.01799 · arxiv_version: 1706.01799v1 · doi: 10.48550/arxiv.1706.01799 · pith_short_12: RKPY4LRIZECV · pith_short_16: RKPY4LRIZECVZMRI · pith_short_8: RKPY4LRI

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/RKPY4LRIZECVZMRIETYFI7UVZ2 \
  | 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: 8a9f8e2e28c9055cb22824f0547e95ceb6be3cfc2a8f83a745033279f9f901c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec31e4bcb6e3a9bd39fb454cf719195c1fbc9f9c50c272679804606935877bf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-06-06T14:51:19Z",
    "title_canon_sha256": "562be3619031a9564e3afcc3ce59776da89c7581a353661d8e389a9592891116"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.01799",
    "kind": "arxiv",
    "version": 1
  }
}