Pith Number

pith:PSYGHIGO

pith:2015:PSYGHIGOBOV4BQKNZ5AXID3QOA

not attested not anchored not stored refs pending

Robust coherence-based spectral enhancement for distant speech recognition

Andreas Schwarz, Christian Huemmer, Hendrik Barfuss, Walter Kellermann

arxiv:1509.06882 v1 · 2015-09-23 · 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{PSYGHIGOBOV4BQKNZ5AXID3QOA}

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	2026-05-18T01:32:17.656682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cb063a0ce0babc0c14dcf41740f7070026601624df9b33d03c96e335fdcbb16

Aliases

arxiv: 1509.06882 · arxiv_version: 1509.06882v1 · doi: 10.48550/arxiv.1509.06882 · pith_short_12: PSYGHIGOBOV4 · pith_short_16: PSYGHIGOBOV4BQKN · pith_short_8: PSYGHIGO

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/PSYGHIGOBOV4BQKNZ5AXID3QOA \
  | 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: 7cb063a0ce0babc0c14dcf41740f7070026601624df9b33d03c96e335fdcbb16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4b970ee4046b63321de11bb1555ec588cda3942a198047b95148c39744079b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2015-09-23T08:34:18Z",
    "title_canon_sha256": "6928122ae39bcba59fde0b1c05edeb64a674400b4c7ebb3604e8a5243ca43360"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06882",
    "kind": "arxiv",
    "version": 1
  }
}