Pith Number

pith:V2QO56ZP

pith:1999:V2QO56ZP32BRZNHGMDRXTWOPLC

not attested not anchored not stored refs pending

Spectral Transition and Torque Reversal in X-ray Pulsar 4U 1626-67

Ethan T. Vishniac, Insu Yi

arxiv:astro-ph/9905214 v1 · 1999-05-17 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V2QO56ZP32BRZNHGMDRXTWOPLC}

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	2026-07-04T16:11:13.517716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aea0eefb2fde831cb4e660e379d9cf5891ce0026c7829a0e9ef7824ad508af82

Aliases

arxiv: astro-ph/9905214 · arxiv_version: astro-ph/9905214v1 · doi: 10.48550/arxiv.astro-ph/9905214 · pith_short_12: V2QO56ZP32BR · pith_short_16: V2QO56ZP32BRZNHG · pith_short_8: V2QO56ZP

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/V2QO56ZP32BRZNHGMDRXTWOPLC \
  | 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: aea0eefb2fde831cb4e660e379d9cf5891ce0026c7829a0e9ef7824ad508af82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "409c67ae6ad3b931fe4f588001e1ca2763e9e8e3345665eef6df7e4897546061",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-05-17T17:19:15Z",
    "title_canon_sha256": "fef2bc9543f788fa38edcd8942b54704bdf97be9495153860d55bf61db7bfdad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9905214",
    "kind": "arxiv",
    "version": 1
  }
}