Pith Number

pith:HQFOGB2Y

pith:2019:HQFOGB2YFZDSFIYZIPCLBNREUI

not attested not anchored not stored refs pending

Spin dynamics of a millisecond pulsar orbiting closely around a massive black hole

Dinesh Singh, Kaye Jiale Li, Kinwah Wu

arxiv:1902.03146 v1 · 2019-02-08 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQFOGB2YFZDSFIYZIPCLBNREUI}

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	2026-05-17T23:54:27.815580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c0ae307582e4722a31943c4b0b624a211d9ffedc2135d0f61eccd7bcde26a8b

Aliases

arxiv: 1902.03146 · arxiv_version: 1902.03146v1 · doi: 10.48550/arxiv.1902.03146 · pith_short_12: HQFOGB2YFZDS · pith_short_16: HQFOGB2YFZDSFIYZ · pith_short_8: HQFOGB2Y

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/HQFOGB2YFZDSFIYZIPCLBNREUI \
  | 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: 3c0ae307582e4722a31943c4b0b624a211d9ffedc2135d0f61eccd7bcde26a8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b3cea32f078b547e572ca428ff5080f9f01441524f32bbf9b910e7f21c791f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-02-08T15:27:15Z",
    "title_canon_sha256": "36c3b8566dd82fac0fcbcb649a170856db3ea0e0f1de4a2c13a4acbc2b4b0dc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.03146",
    "kind": "arxiv",
    "version": 1
  }
}