Pith Number

pith:IYBLKJQF

pith:2018:IYBLKJQFZLL4QM3H7ZL2YMH7DY

not attested not anchored not stored refs pending

A Reflectance Based Method For Shadow Detection and Removal

Fengqing Zhu, Sri Kalyan Yarlagadda

arxiv:1807.04352 v1 · 2018-07-11 · 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{IYBLKJQFZLL4QM3H7ZL2YMH7DY}

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	2026-05-18T00:10:53.787062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4602b52605cad7c83367fe57ac30ff1e08b4d336c4665d2c2c82c6e67c734154

Aliases

arxiv: 1807.04352 · arxiv_version: 1807.04352v1 · doi: 10.48550/arxiv.1807.04352 · pith_short_12: IYBLKJQFZLL4 · pith_short_16: IYBLKJQFZLL4QM3H · pith_short_8: IYBLKJQF

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/IYBLKJQFZLL4QM3H7ZL2YMH7DY \
  | 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: 4602b52605cad7c83367fe57ac30ff1e08b4d336c4665d2c2c82c6e67c734154

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e34ab33dc14221feb5e863b02ab303089be5754cd807ce28e4cf6a95abe85664",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-07-11T21:11:25Z",
    "title_canon_sha256": "95a4d7b661bcf3fb7e9fd0b8d727391b8aded5b447747cab219506878dd55b80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04352",
    "kind": "arxiv",
    "version": 1
  }
}