Pith Number

pith:E7KQKLGI

pith:2013:E7KQKLGIXRYNY7SDE4RLGJX6LK

not attested not anchored not stored refs pending

Calibrating the fundamental plane with SDSS DR8 data

Christoph Saulder, Igor V. Chilingarian, Steffen Mieske, Werner W. Zeilinger

arxiv:1306.0285 v2 · 2013-06-03 · 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{E7KQKLGIXRYNY7SDE4RLGJX6LK}

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	2026-05-18T01:49:38.707479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27d5052cc8bc70dc7e432722b326fe5ab9a206c6ab4a9e95cd4d8a8cc06438b5

Aliases

arxiv: 1306.0285 · arxiv_version: 1306.0285v2 · doi: 10.48550/arxiv.1306.0285 · pith_short_12: E7KQKLGIXRYN · pith_short_16: E7KQKLGIXRYNY7SD · pith_short_8: E7KQKLGI

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/E7KQKLGIXRYNY7SDE4RLGJX6LK \
  | 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: 27d5052cc8bc70dc7e432722b326fe5ab9a206c6ab4a9e95cd4d8a8cc06438b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b4f70212d11f1c685c61330603089a1383a369057c97d0d773600e3eac0212e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-03T03:19:16Z",
    "title_canon_sha256": "ce9d102132bc00ee98a64b90cab8c09b786f98be8d2908a95cb8516902e43e71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0285",
    "kind": "arxiv",
    "version": 2
  }
}