Pith Number

pith:CX2MUBPA

pith:2003:CX2MUBPAJGKDB67NLOBJP7RSAS

not attested not anchored not stored refs pending

A Sample of X-Ray active extragalactic Sources suitable for NIR Adaptive Optics Observations

A. Eckart (Universitaet zu Koeln), C. Straubmeier (Universitaet zu Koeln), Garching), J. Zuther (Universitaet zu Koeln), W. Voges (Max-Planck Institut fuer extraterrestrische Physik

arxiv:astro-ph/0310371 v1 · 2003-10-14 · 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{CX2MUBPAJGKDB67NLOBJP7RSAS}

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	2026-07-04T14:13:05.162559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15f4ca05e0499430fbed5b8297fe32049073013b546b731558a658f7f9e8d270

Aliases

arxiv: astro-ph/0310371 · arxiv_version: astro-ph/0310371v1 · doi: 10.48550/arxiv.astro-ph/0310371 · pith_short_12: CX2MUBPAJGKD · pith_short_16: CX2MUBPAJGKDB67N · pith_short_8: CX2MUBPA

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/CX2MUBPAJGKDB67NLOBJP7RSAS \
  | 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: 15f4ca05e0499430fbed5b8297fe32049073013b546b731558a658f7f9e8d270

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ad6f79423b3d2d84d851e89af146fa3bdc7e621377eec379573bc579c059a2b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-14T16:15:42Z",
    "title_canon_sha256": "37cc914c11d0162b19a2d3336a37b81d88e4b1f65da785f72e73ec1359388b82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310371",
    "kind": "arxiv",
    "version": 1
  }
}