Pith Number

pith:6PFIEXFY

pith:2013:6PFIEXFYQMHOA5USJWG66OAGJ7

not attested not anchored not stored refs pending

AGN X-ray variability in the XMM-COSMOS survey

A. Bongiorno, A. Comastri, A. Merloni, B. Trakhtenbrot, C. Steinhardt, C. Vignali, D. Rosario, D. Sanders, E. Lusso, G. Hasinger, G. Lanzuisi, G. Ponti, J. Kartaltepe, J. Silverman, J. Trump, M. Brusa, M. Salvato, M. Schramm, N. Cappelluti, P. K. Nandra, R. Gilli

arxiv:1312.2264 v1 · 2013-12-08 · 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{6PFIEXFYQMHOA5USJWG66OAGJ7}

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	2026-05-18T01:19:48.825129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3ca825cb8830ee076924d8def38064fc15f8cc1b945e44acb39a528282f6c82

Aliases

arxiv: 1312.2264 · arxiv_version: 1312.2264v1 · doi: 10.48550/arxiv.1312.2264 · pith_short_12: 6PFIEXFYQMHO · pith_short_16: 6PFIEXFYQMHOA5US · pith_short_8: 6PFIEXFY

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/6PFIEXFYQMHOA5USJWG66OAGJ7 \
  | 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: f3ca825cb8830ee076924d8def38064fc15f8cc1b945e44acb39a528282f6c82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68a3575d3b68dd8e2e93e127090412a9660f5106c49eeac17d288f64032e0a5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-12-08T21:00:02Z",
    "title_canon_sha256": "028c9bbae2eabf8e4ebb190b714497ef9ddf7ddc7353363fe8d1633f4d0f3054"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2264",
    "kind": "arxiv",
    "version": 1
  }
}