Pith Number

pith:EIQOQH2B

pith:2005:EIQOQH2BK3OJ6OB4HIHNHM7K7T

not attested not anchored not stored refs pending

X-ray Spectral Evolution of Her X-1 in a Low State and the Following Short High State

(2) Physics Department, A. Baykal (2) ((1) Department of Electrical, Ankara, Baskent University, Electronics Engineering, Middle East Technical University, S. C. Inam (1), Turkey, Turkey)

arxiv:astro-ph/0506227 v1 · 2005-06-10 · 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{EIQOQH2BK3OJ6OB4HIHNHM7K7T}

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	2026-05-18T01:40:33.956372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2220e81f4156dc9f383c3a0ed3b3eafce559e507553f0bca864a2aa14fadad17

Aliases

arxiv: astro-ph/0506227 · arxiv_version: astro-ph/0506227v1 · doi: 10.48550/arxiv.astro-ph/0506227 · pith_short_12: EIQOQH2BK3OJ · pith_short_16: EIQOQH2BK3OJ6OB4 · pith_short_8: EIQOQH2B

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/EIQOQH2BK3OJ6OB4HIHNHM7K7T \
  | 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: 2220e81f4156dc9f383c3a0ed3b3eafce559e507553f0bca864a2aa14fadad17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd7570f9b357b7ba49c9ca51462591eb13ea10c10abc23882192bbf4ad5fcc52",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-06-10T06:13:04Z",
    "title_canon_sha256": "8d98bb14a66c7415f76a81136b191eed3545a3b699654ef4b0d9dd7aa16d37e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0506227",
    "kind": "arxiv",
    "version": 1
  }
}