Pith Number

pith:G6R6LTBZ

pith:2013:G6R6LTBZIZQ5LLB5N4VESIKSY7

not attested not anchored not stored refs pending

Predicting Stellar Angular Sizes

(2) Yale University, (3) Lowell Observatory), Gerard T. van Belle (3) ((1) MPIA, Kaspar von Braun (1), Tabetha S. Boyajian (2)

arxiv:1311.2523 v1 · 2013-11-08 · astro-ph.SR · 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{G6R6LTBZIZQ5LLB5N4VESIKSY7}

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	2026-05-18T02:57:08.138109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37a3e5cc394661d5ac3d6f2a492152c7d8cbf6a92adba1803f91795a36e6ef0b

Aliases

arxiv: 1311.2523 · arxiv_version: 1311.2523v1 · doi: 10.48550/arxiv.1311.2523 · pith_short_12: G6R6LTBZIZQ5 · pith_short_16: G6R6LTBZIZQ5LLB5 · pith_short_8: G6R6LTBZ

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/G6R6LTBZIZQ5LLB5N4VESIKSY7 \
  | 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: 37a3e5cc394661d5ac3d6f2a492152c7d8cbf6a92adba1803f91795a36e6ef0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf2b41df5902e2561d58c2ad9fe40fdba3f587cc28fda73a2f49853605b5018c",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-11-08T12:01:35Z",
    "title_canon_sha256": "09a4f39645ce2d80c23b4227d3b1f45335988ecb8301f8ecc00d710608ae966c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2523",
    "kind": "arxiv",
    "version": 1
  }
}