Pith Number

pith:T437ZUIS

pith:2016:T437ZUISZFQ6MX7R2J5455VFCM

not attested not anchored not stored refs pending

An Ultramassive 1.28 M$_\odot$ White Dwarf in NGC 2099

Enrico Ramirez-Ruiz, Jason S. Kalirai, Jeffrey D. Cummings, P. Bergeron, P.-E. Tremblay

arxiv:1603.00471 v1 · 2016-03-01 · 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{T437ZUISZFQ6MX7R2J5455VFCM}

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	2026-05-18T01:18:36.996005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f37fcd112c961e65ff1d27bcef6a5131da12daa751b7fa48ddfd3189bd3cfcf

Aliases

arxiv: 1603.00471 · arxiv_version: 1603.00471v1 · doi: 10.48550/arxiv.1603.00471 · pith_short_12: T437ZUISZFQ6 · pith_short_16: T437ZUISZFQ6MX7R · pith_short_8: T437ZUIS

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/T437ZUISZFQ6MX7R2J5455VFCM \
  | 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: 9f37fcd112c961e65ff1d27bcef6a5131da12daa751b7fa48ddfd3189bd3cfcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4db9c6fbc63e33cf17f405de58c868b6eaebc85a381a57e22b88eb6343fe86b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-03-01T21:00:04Z",
    "title_canon_sha256": "82ccb251d3363a53ec8c31f5793982eb4da09f53a8c2951dcdaa62a2312b019a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.00471",
    "kind": "arxiv",
    "version": 1
  }
}