Pith Number

pith:E2DZSK7C

pith:2021:E2DZSK7CG5QEACR4CQWQJ4FQ74

not attested not anchored not stored refs pending

The Spin and Orientation of the Black Hole in XTE J1908$+$094

Abderahmen Zoghbi, Elias S. Kammoun, John A. Tomsick, Jon M. Miller, Mark T. Reynolds, Paul A. Draghis

arxiv:2107.02810 v1 · 2021-07-06 · 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{E2DZSK7CG5QEACR4CQWQJ4FQ74}

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	2026-07-05T03:25:59.864161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2687992be23760400a3c142d04f0b0ff00f76472788d510ff685fd3e98353e44

Aliases

arxiv: 2107.02810 · arxiv_version: 2107.02810v1 · doi: 10.48550/arxiv.2107.02810 · pith_short_12: E2DZSK7CG5QE · pith_short_16: E2DZSK7CG5QEACR4 · pith_short_8: E2DZSK7C

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/E2DZSK7CG5QEACR4CQWQJ4FQ74 \
  | 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: 2687992be23760400a3c142d04f0b0ff00f76472788d510ff685fd3e98353e44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a682af82b5dd932298bcf2a09be1bdea558e531762c67c3a59e50621459d92ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-07-06T18:00:02Z",
    "title_canon_sha256": "17be4de44e2ff79f6cf621d7f4785b02df98ca6f8fb9a4f55c2650718f5933d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.02810",
    "kind": "arxiv",
    "version": 1
  }
}