Pith Number

pith:H2WYVGZ7

pith:2025:H2WYVGZ7T556GPPWSHBH5RLCJW

not attested not anchored not stored refs pending

Faster than real-time detection of shot boundaries, sampling structure and dynamic keyframes in video

Hannes Fassold

arxiv:2502.09202 v1 · 2025-02-13 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H2WYVGZ7T556GPPWSHBH5RLCJW}

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	2026-07-05T10:13:53.697642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ead8a9b3f9f7be33df691c27ec5624d8594ff04a0e3b7588bb0abec0896ce31

Aliases

arxiv: 2502.09202 · arxiv_version: 2502.09202v1 · doi: 10.48550/arxiv.2502.09202 · pith_short_12: H2WYVGZ7T556 · pith_short_16: H2WYVGZ7T556GPPW · pith_short_8: H2WYVGZ7

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/H2WYVGZ7T556GPPWSHBH5RLCJW \
  | 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: 3ead8a9b3f9f7be33df691c27ec5624d8594ff04a0e3b7588bb0abec0896ce31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65379132db1488b4d096a333901ff54f1ac732aae56c19be997c84912b5388ac",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-02-13T11:40:46Z",
    "title_canon_sha256": "ce092a3a9589be821f4f07c5a815b41815f789bd881cf54867884f24c90fd0b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.09202",
    "kind": "arxiv",
    "version": 1
  }
}