Pith Number

pith:TUKKBUMF

pith:2009:TUKKBUMFI5DF5HATMLC4TIXY5J

not attested not anchored not stored refs pending

Small-scale systems of galaxies. IV. Searching for the faint galaxy population associated with X-ray detected isolated E+S pairs

E.V. Held, G. Trinchieri, J.W. Sulentic, R. Gr\"utzbauch, R. Rampazzo, W.W. Zeilinger

arxiv:0905.1264 v1 · 2009-05-08 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TUKKBUMFI5DF5HATMLC4TIXY5J}

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	2026-05-18T02:13:46.359157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d14a0d18547465e9c1362c5c9a2f8ea64bdcc83400e0a9f5921fcac637ad80f

Aliases

arxiv: 0905.1264 · arxiv_version: 0905.1264v1 · doi: 10.48550/arxiv.0905.1264 · pith_short_12: TUKKBUMFI5DF · pith_short_16: TUKKBUMFI5DF5HAT · pith_short_8: TUKKBUMF

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/TUKKBUMFI5DF5HATMLC4TIXY5J \
  | 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: 9d14a0d18547465e9c1362c5c9a2f8ea64bdcc83400e0a9f5921fcac637ad80f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce9a6858e09dbd035f1cc6e0547b7b4a7ea16a6bf00ff60a17614b048a101f44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-08T15:04:31Z",
    "title_canon_sha256": "fb4fa08fb0be96157b6d6c136560e41d4ece4d9022fe555fa041eb9b0fa19a8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1264",
    "kind": "arxiv",
    "version": 1
  }
}