Pith Number

pith:COB5JLRT

pith:2001:COB5JLRTRSTJJFT34TBHFILFV4

not attested not anchored not stored refs pending

Chandra Observation of RXJ1720.1+2638: a Nearly Relaxed Cluster with a Fast Moving Core?

A. Vikhlinin, Cambridge, L. P. David, L. VanSpeybroeck (Harvard-Smithsonian Center for Astrophysics, M. Markevitch, P. Mazzotta, USA), W. R. Forman

arxiv:astro-ph/0102291 v1 · 2001-02-16 · 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{COB5JLRTRSTJJFT34TBHFILFV4}

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	2026-07-04T16:22:44.598032Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1383d4ae338ca694967be4c272a165af33be08a3f00906c5e0bca76676a07bc2

Aliases

arxiv: astro-ph/0102291 · arxiv_version: astro-ph/0102291v1 · doi: 10.48550/arxiv.astro-ph/0102291 · pith_short_12: COB5JLRTRSTJ · pith_short_16: COB5JLRTRSTJJFT3 · pith_short_8: COB5JLRT

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/COB5JLRTRSTJJFT34TBHFILFV4 \
  | 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: 1383d4ae338ca694967be4c272a165af33be08a3f00906c5e0bca76676a07bc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7013acf1007a641db9b0621be60e4897ae73a91cd5872cc79bf8811b96a61f5c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-02-16T00:30:40Z",
    "title_canon_sha256": "d731d819eee08adece738afb97a00a62cea58ab74943c2235fb6a2d5f9871d0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0102291",
    "kind": "arxiv",
    "version": 1
  }
}