Pith Number

pith:URL2NK2L

pith:2018:URL2NK2LQWCUYHBEQIZ42FJSJX

not attested not anchored not stored refs pending

Efficiency of BRDF sampling and bias on the average photometric behavior

Frederic Schmidt, Sebastien Bourguignon

arxiv:1806.03898 v1 · 2018-06-11 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{URL2NK2LQWCUYHBEQIZ42FJSJX}

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	2026-05-18T00:09:24.444546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a457a6ab4b85854c1c248233cd15324de6eb7b77162f8cf926544eaf31674caa

Aliases

arxiv: 1806.03898 · arxiv_version: 1806.03898v1 · doi: 10.48550/arxiv.1806.03898 · pith_short_12: URL2NK2LQWCU · pith_short_16: URL2NK2LQWCUYHBE · pith_short_8: URL2NK2L

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/URL2NK2LQWCUYHBEQIZ42FJSJX \
  | 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: a457a6ab4b85854c1c248233cd15324de6eb7b77162f8cf926544eaf31674caa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e0328107f28081f1958845972d3362e4b7928d75d619c0c92c28b164bc68e2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-06-11T10:50:03Z",
    "title_canon_sha256": "53a696572bcd4ce90d4cc45722d6ed778ae406531ad32c5c569981fb65cf10a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03898",
    "kind": "arxiv",
    "version": 1
  }
}