Pith Number

pith:TK73VVNV

pith:2019:TK73VVNVJVYSI5BJTCVCSZDAQX

not attested not anchored not stored refs pending

Non-Lambertian Surface Shape and Reflectance Reconstruction Using Concentric Multi-Spectral Light Field

Jingyi Yu, Jinwei Ye, Mingyuan Zhou, S. Susan Young, Yu Ji, Yuqi Ding

arxiv:1904.04875 v2 · 2019-04-09 · 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{TK73VVNVJVYSI5BJTCVCSZDAQX}

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	2026-05-17T23:48:09.003106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9abfbad5b54d7124742998aa29646085c4d70c0ab5d4058def27dc0c6c6a1031

Aliases

arxiv: 1904.04875 · arxiv_version: 1904.04875v2 · doi: 10.48550/arxiv.1904.04875 · pith_short_12: TK73VVNVJVYS · pith_short_16: TK73VVNVJVYSI5BJ · pith_short_8: TK73VVNV

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/TK73VVNVJVYSI5BJTCVCSZDAQX \
  | 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: 9abfbad5b54d7124742998aa29646085c4d70c0ab5d4058def27dc0c6c6a1031

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a3edc7acb9eb3baf8d607d7997720a1edb37ce51317bd3ea477246074696edc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-09T19:12:29Z",
    "title_canon_sha256": "98b4ba2256e28d97e9e34185eeebc37422f215f82dcb9df94c57769cf491d066"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04875",
    "kind": "arxiv",
    "version": 2
  }
}