Pith Number

pith:HT5IDO2X

pith:2001:HT5IDO2XKGT7FBG26TRAMFMMPY

not attested not anchored not stored refs pending

Variability of Soft X-ray Spectral Shape in Blazars Observed by ROSAT

Beijing), Janyan Wei (NAOC, Linpeng Cheng, Yongheng Zhao

arxiv:astro-ph/0110639 v1 · 2001-10-30 · astro-ph

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T00:31:36.781171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cfa81bb5751a7f284daf4e206158c7e33c98dcba6b84f0a9f242ec9b42d5038

Aliases

arxiv: astro-ph/0110639 · arxiv_version: astro-ph/0110639v1 · doi: 10.48550/arxiv.astro-ph/0110639

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/HT5IDO2XKGT7FBG26TRAMFMMPY \
  | 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: 3cfa81bb5751a7f284daf4e206158c7e33c98dcba6b84f0a9f242ec9b42d5038

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b620177e51ae838e2298bcfd8d33416063cd56f27381685b279072231379053",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-30T05:04:57Z",
    "title_canon_sha256": "9f8dc5a00f3cca0d7387664e6a57d9b211fc502a192ed620bfd9b5a602f7e7b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110639",
    "kind": "arxiv",
    "version": 1
  }
}