Pith Number

pith:HQ3BARVD

pith:2021:HQ3BARVD6C22M3NKAJHXH4QSBX

not attested not anchored not stored refs pending

AQP: An Open Modular Python Platform for Objective Speech and Audio Quality Metrics

Alessandro Ragano, Andrew Hines, Jack Geraghty, Jiazheng Li

arxiv:2110.13589 v2 · 2021-10-26 · cs.SD · eess.AS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQ3BARVD6C22M3NKAJHXH4QSBX}

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	2026-07-05T04:36:20.980844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c361046a3f0b5a66daa024f73f2120dcfb1f2c3faa81ddc17c6483c9f202d6e

Aliases

arxiv: 2110.13589 · arxiv_version: 2110.13589v2 · doi: 10.48550/arxiv.2110.13589 · pith_short_12: HQ3BARVD6C22 · pith_short_16: HQ3BARVD6C22M3NK · pith_short_8: HQ3BARVD

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/HQ3BARVD6C22M3NKAJHXH4QSBX \
  | 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: 3c361046a3f0b5a66daa024f73f2120dcfb1f2c3faa81ddc17c6483c9f202d6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52b94b62bb5f30b79435ced7716856e5c2c3e315e535276be8be6d34b3f8d02f",
    "cross_cats_sorted": [
      "eess.AS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2021-10-26T11:43:02Z",
    "title_canon_sha256": "237cb3c4dbdf60ffdbd868a088e31092d6b0c123c54fd63534b614f0439e195c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.13589",
    "kind": "arxiv",
    "version": 2
  }
}