Pith Number

pith:3FBHX5AB

pith:2021:3FBHX5ABSBRFXD74CKEPJS3R4G

not attested not anchored not stored refs pending

AEC in a NetShell: On Target and Topology Choices for FCRN Acoustic Echo Cancellation

Ernst Seidel, Jan Franzen, Tim Fingscheidt

arxiv:2103.09007 v1 · 2021-03-16 · 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{3FBHX5ABSBRFXD74CKEPJS3R4G}

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	2026-07-05T02:23:34.090779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9427bf40190625b8ffc1288f4cb71e1aaaf0ef0c7233cbe02de339666660146

Aliases

arxiv: 2103.09007 · arxiv_version: 2103.09007v1 · doi: 10.48550/arxiv.2103.09007 · pith_short_12: 3FBHX5ABSBRF · pith_short_16: 3FBHX5ABSBRFXD74 · pith_short_8: 3FBHX5AB

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/3FBHX5ABSBRFXD74CKEPJS3R4G \
  | 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: d9427bf40190625b8ffc1288f4cb71e1aaaf0ef0c7233cbe02de339666660146

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68b373a8980811c357cbdf4eb8b63b62a2bf28caa21698a285bbfb6de69bdd29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2021-03-16T12:08:25Z",
    "title_canon_sha256": "a0abb9ac8d8c5774bbc74234c5418e43a89a8b5725fc1696772f1191685643c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.09007",
    "kind": "arxiv",
    "version": 1
  }
}