Pith Number

pith:Q3JLLA54

pith:2015:Q3JLLA54TLNHBQR32PDFNCK3EO

not attested not anchored not stored refs pending

Hyper-Fit: Fitting Linear Models to Multidimensional Data with Multivariate Gaussian Uncertainties

A.S.G. Robotham, D. Obreschkow

arxiv:1508.02145 v1 · 2015-08-10 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q3JLLA54TLNHBQR32PDFNCK3EO}

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	2026-05-18T01:29:45.096646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86d2b583bc9ada70c23bd3c656895b23b125072bbf91b2ce507de45ccacaf937

Aliases

arxiv: 1508.02145 · arxiv_version: 1508.02145v1 · doi: 10.48550/arxiv.1508.02145 · pith_short_12: Q3JLLA54TLNH · pith_short_16: Q3JLLA54TLNHBQR3 · pith_short_8: Q3JLLA54

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/Q3JLLA54TLNHBQR32PDFNCK3EO \
  | 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: 86d2b583bc9ada70c23bd3c656895b23b125072bbf91b2ce507de45ccacaf937

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71052edf17b6027b1395821cae07bfd3833870faa3da23bbacaeb4edb3525a41",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-08-10T07:12:23Z",
    "title_canon_sha256": "3d5a8fb9646c8db5eac4949f648a448c50d74525940f8d38eab0f974b0ed82b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02145",
    "kind": "arxiv",
    "version": 1
  }
}