Pith Number

pith:NGSLBULP

pith:2015:NGSLBULPSQDR5JYHQEAQYNZBSR

not attested not anchored not stored refs pending

A Ground-Based Albedo Upper Limit for HD 189733b from Polarimetry

2), (2) Institute for Astronomy, (3) NASA Ames Research Center, 4), (4) Penn State, (5) Caltech, (6) JPL), Daniel Jontof-Hutter (3, Gregory P. Laughlin (1), Larissa A. Nofi (1, Mark R. Swain (6) ((1) UC Santa Cruz, Ninos Hermis (1), Pushkar Kopparla (5), Sloane J. Wiktorowicz (1), Yuk L. Yung (5)

arxiv:1507.03588 v1 · 2015-07-13 · 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{NGSLBULPSQDR5JYHQEAQYNZBSR}

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	2026-05-18T01:28:04.109038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69a4b0d16f94071ea70781010c3721945c7783571632fc5ff34d4805accd481c

Aliases

arxiv: 1507.03588 · arxiv_version: 1507.03588v1 · doi: 10.48550/arxiv.1507.03588 · pith_short_12: NGSLBULPSQDR · pith_short_16: NGSLBULPSQDR5JYH · pith_short_8: NGSLBULP

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/NGSLBULPSQDR5JYHQEAQYNZBSR \
  | 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: 69a4b0d16f94071ea70781010c3721945c7783571632fc5ff34d4805accd481c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8be57286c3d695094cdc5efdc9a78dd7ea6633a0a0e57b73638b7c8734fbbe9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-07-13T20:00:31Z",
    "title_canon_sha256": "a3b698dc6a27f7858eacd64a57bd147b0845c62ba41080d7eb54bfdab8fd4b97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03588",
    "kind": "arxiv",
    "version": 1
  }
}