Pith Number

pith:GEG6CQBI

pith:2014:GEG6CQBIF7FU7VBHLMLSJ62FTV

not attested not anchored not stored refs pending

Physical Computing With No Clock to Implement the Gaussian Pyramid of SIFT Algorithm

Fei Qiao, Huazhong Yang, Qi Wei, Yi Li

arxiv:1408.2289 v1 · 2014-08-11 · 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{GEG6CQBIF7FU7VBHLMLSJ62FTV}

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	2026-05-18T02:45:29.778132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

310de140282fcb4fd4275b1724fb459d64646efe686422569782319a0e4e3fa0

Aliases

arxiv: 1408.2289 · arxiv_version: 1408.2289v1 · doi: 10.48550/arxiv.1408.2289 · pith_short_12: GEG6CQBIF7FU · pith_short_16: GEG6CQBIF7FU7VBH · pith_short_8: GEG6CQBI

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/GEG6CQBIF7FU7VBHLMLSJ62FTV \
  | 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: 310de140282fcb4fd4275b1724fb459d64646efe686422569782319a0e4e3fa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6817f47ff5b1c344bbc048340fd6b08ac09a43191c41c0d014997dc130b7ce42",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-08-11T01:08:53Z",
    "title_canon_sha256": "dce3e2615af7020ff3d9fc7eb0748c102c414873e070a70df4de6de9af7d8e39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2289",
    "kind": "arxiv",
    "version": 1
  }
}