Pith Number

pith:4777B2MW

pith:2017:4777B2MW2IFNA3USP7O5HBDS4S

not attested not anchored not stored refs pending

Quasars as standard candles I: The physical relation between disc and coronal emission

E. Lusso, G. Risaliti

arxiv:1703.05299 v2 · 2017-03-13 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4777B2MW2IFNA3USP7O5HBDS4S}

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	2026-05-18T00:42:01.500284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7fff0e996d20ad06e927fddd38472e49024a317a3a99733033e22ba5b728933

Aliases

arxiv: 1703.05299 · arxiv_version: 1703.05299v2 · doi: 10.48550/arxiv.1703.05299 · pith_short_12: 4777B2MW2IFN · pith_short_16: 4777B2MW2IFNA3US · pith_short_8: 4777B2MW

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/4777B2MW2IFNA3USP7O5HBDS4S \
  | 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: e7fff0e996d20ad06e927fddd38472e49024a317a3a99733033e22ba5b728933

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef7cf08522b6258d4a90c181f84469cb67008485e8298399fc589e3a3da20976",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-03-13T18:00:00Z",
    "title_canon_sha256": "9f45f3f58d309f7ca963c279005014565a3d977cb252ea08dc62239df7bd035f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05299",
    "kind": "arxiv",
    "version": 2
  }
}