Pith Number

pith:MBOOYCMZ

pith:2015:MBOOYCMZTY6HJA54FGAXPUYGJD

not attested not anchored not stored refs pending

A Dark Spot on a Massive White Dwarf

Alexandros Gianninas, Brandon Curd, D. E. Winget, J. J. Hermes, John P. Wisniewski, Keaton J. Bell, K. I. Winget, Mukremin Kilic, Patrick Dufour, Warren R. Brown

arxiv:1511.07320 v1 · 2015-11-23 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MBOOYCMZTY6HJA54FGAXPUYGJD}

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	2026-05-18T01:24:45.450652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

605cec09999e3c7483bc298177d30648ccc41d9242820c92c9b9af904d8f4f23

Aliases

arxiv: 1511.07320 · arxiv_version: 1511.07320v1 · doi: 10.48550/arxiv.1511.07320 · pith_short_12: MBOOYCMZTY6H · pith_short_16: MBOOYCMZTY6HJA54 · pith_short_8: MBOOYCMZ

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/MBOOYCMZTY6HJA54FGAXPUYGJD \
  | 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: 605cec09999e3c7483bc298177d30648ccc41d9242820c92c9b9af904d8f4f23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4b0222a35e49572a7d787ac3f678d3d4201e9a7a8ef754ce3419ab28e6b0f58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-11-23T17:18:16Z",
    "title_canon_sha256": "1cac99c7eec8e3d3028e2b02d15df594ac3d9e04580e9b76e8f3c357e2ef5035"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.07320",
    "kind": "arxiv",
    "version": 1
  }
}