Pith Number

pith:HMZO2N6C

pith:2019:HMZO2N6C2ME5RSHNP7RJMGUZBZ

not attested not anchored not stored refs pending

Detecting the Presence of ENF Signal in Digital Videos: a Superpixel based Approach

Ahmet Emir Dirik, Nasir Memon, Saffet Vatansever

arxiv:1903.09884 v1 · 2019-03-23 · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HMZO2N6C2ME5RSHNP7RJMGUZBZ}

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	2026-05-17T23:50:35.165218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b32ed37c2d309d8c8ed7fe2961a990e6634406fb5566e38360e3e06ae42fecb

Aliases

arxiv: 1903.09884 · arxiv_version: 1903.09884v1 · doi: 10.48550/arxiv.1903.09884 · pith_short_12: HMZO2N6C2ME5 · pith_short_16: HMZO2N6C2ME5RSHN · pith_short_8: HMZO2N6C

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/HMZO2N6C2ME5RSHNP7RJMGUZBZ \
  | 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: 3b32ed37c2d309d8c8ed7fe2961a990e6634406fb5566e38360e3e06ae42fecb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f7ed5201091a734b9cb7d7139cf3be03d9773de9681ebb215a23cc849c5c39d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2019-03-23T21:28:43Z",
    "title_canon_sha256": "df614f1e0db4ed6d600dbc6ffd2665db63cae67c12708ff5aec222a597f112e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09884",
    "kind": "arxiv",
    "version": 1
  }
}