Pith Number

pith:UFRN3HMN

pith:2020:UFRN3HMNBVYDRE5TASMFXF56TI

not attested not anchored not stored refs pending

Automatic exposure selection and fusion for high-dynamic-range photography via smartphones

Nasser Kehtarnavaz, Reza Pourreza

arxiv:2004.10365 v1 · 2020-04-22 · cs.CV · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UFRN3HMNBVYDRE5TASMFXF56TI}

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	2026-07-05T00:57:28.329540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a162dd9d8d0d703893b304985b97be9a197d97deeaa6452ca4c5bce823d57ef2

Aliases

arxiv: 2004.10365 · arxiv_version: 2004.10365v1 · doi: 10.48550/arxiv.2004.10365 · pith_short_12: UFRN3HMNBVYD · pith_short_16: UFRN3HMNBVYDRE5T · pith_short_8: UFRN3HMN

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/UFRN3HMNBVYDRE5TASMFXF56TI \
  | 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: a162dd9d8d0d703893b304985b97be9a197d97deeaa6452ca4c5bce823d57ef2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55b753ceda346f5cf72e865e3e2c8c3015dc6270d88eeee07c615ff91eeacc08",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-04-22T01:48:17Z",
    "title_canon_sha256": "a1a2d5e674426f520d1c525f4dea3c8b44f228cb0ab7d3e0334d4c463c653062"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.10365",
    "kind": "arxiv",
    "version": 1
  }
}