Pith Number

pith:2LJLHN5J

pith:2013:2LJLHN5JNT4TGFFAP5QMAEBAKP

not attested not anchored not stored refs pending

Brown Dwarf Photospheres are Patchy: A Hubble Space Telescope Near-infrared Spectroscopic Survey Finds Frequent Low-level Variability

Daniel Apai, Davin Flateau, Esther Buenzli, I. Neill Reid, Jacqueline Radigan

arxiv:1312.5294 v1 · 2013-12-18 · astro-ph.SR · astro-ph.EP

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

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	2026-05-18T01:45:44.449562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2d2b3b7a96cf93314a07f60c0102053dd9b9a472a5599d1af87358d2876dd60

Aliases

arxiv: 1312.5294 · arxiv_version: 1312.5294v1 · doi: 10.48550/arxiv.1312.5294 · pith_short_12: 2LJLHN5JNT4T · pith_short_16: 2LJLHN5JNT4TGFFA · pith_short_8: 2LJLHN5J

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/2LJLHN5JNT4TGFFAP5QMAEBAKP \
  | 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: d2d2b3b7a96cf93314a07f60c0102053dd9b9a472a5599d1af87358d2876dd60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bde7b55b360778d1884004eaddb69964a4776db5cba764fd019c13d6ed00f2bf",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-12-18T20:02:00Z",
    "title_canon_sha256": "95780fb4ff08e5bee0c38f510efe510db83b2ae8d650844371c4be1b1c336b65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5294",
    "kind": "arxiv",
    "version": 1
  }
}