Pith Number

pith:MXPCAAL3

pith:2015:MXPCAAL37TC23CQ5TVS7O2TFNI

not attested not anchored not stored refs pending

Optical spectroscopy of SDSS J004054.65-0915268: three possible scenarios for the classification. A z \sim 5 BL Lacertae, blue FSRQ or a weak emission line quasar

A. Bianco, A. Zanutta, F. Tavecchio, G. Bonnoli, G. Ghisellini, M. Landoni

arxiv:1512.05092 v1 · 2015-12-16 · astro-ph.HE · 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{MXPCAAL37TC23CQ5TVS7O2TFNI}

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	2026-07-04T23:57:09.654071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65de20017bfcc5ad8a1d9d65f76a656a3478ff05298ca4d6aef978c88d326603

Aliases

arxiv: 1512.05092 · arxiv_version: 1512.05092v1 · doi: 10.48550/arxiv.1512.05092 · pith_short_12: MXPCAAL37TC2 · pith_short_16: MXPCAAL37TC23CQ5 · pith_short_8: MXPCAAL3

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/MXPCAAL37TC23CQ5TVS7O2TFNI \
  | 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: 65de20017bfcc5ad8a1d9d65f76a656a3478ff05298ca4d6aef978c88d326603

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9ad247a0f6c0be58145360268c1a4c6b93cac72e8cf96e76a9199a9cd461eb2",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-12-16T08:56:59Z",
    "title_canon_sha256": "8fe88625266733ae18534066055a798f902780c801626ef7b27b5aeaedfe622d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.05092",
    "kind": "arxiv",
    "version": 1
  }
}