Pith Number

pith:3TDW7XAU

pith:2016:3TDW7XAU2VBGYLEQ4EIM3L2ARP

not attested not anchored not stored refs pending

Low Rank and Sparsity Analysis Applied to Speech Enhancement via Online Estimated Dictionary

Jun Qin, Pengfei Sun

arxiv:1609.09231 v1 · 2016-09-29 · cs.SD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3TDW7XAU2VBGYLEQ4EIM3L2ARP}

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	2026-05-18T00:54:29.148228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcc76fdc14d5426c2c90e110cdaf408bcbd4b6b6468715fd4351c78c270c773c

Aliases

arxiv: 1609.09231 · arxiv_version: 1609.09231v1 · doi: 10.48550/arxiv.1609.09231 · pith_short_12: 3TDW7XAU2VBG · pith_short_16: 3TDW7XAU2VBGYLEQ · pith_short_8: 3TDW7XAU

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/3TDW7XAU2VBGYLEQ4EIM3L2ARP \
  | 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: dcc76fdc14d5426c2c90e110cdaf408bcbd4b6b6468715fd4351c78c270c773c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d6aa92ac8d14e7a0654cbfaba134c608f24b60fa0567c68ae5c9e24f3fa3b9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2016-09-29T07:24:27Z",
    "title_canon_sha256": "2c742c708b4225489bf6eb3da0196574620b871f6bbead93dd79c011be4c591c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09231",
    "kind": "arxiv",
    "version": 1
  }
}