Pith Number

pith:FTBH5UIK

pith:2022:FTBH5UIKATX2ACG5T6OXIX47L3

not attested not anchored not stored refs pending

PetroFit: A Python Package for Computing Petrosian Radii and Fitting Galaxy Light Profiles

Erik J. Tollerud, Lucas R. Hunt, Matthew A. Bershady, Robel Geda, Solohery M. Randriamampandry, Steven Crawford

arxiv:2202.13493 v2 · 2022-02-28 · astro-ph.IM · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FTBH5UIKATX2ACG5T6OXIX47L3}

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	2026-07-05T04:15:14.520437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cc27ed10a04efa008dd9f9d745f9f5edbc2c457c9b368e1e4b33aae02bf4251

Aliases

arxiv: 2202.13493 · arxiv_version: 2202.13493v2 · doi: 10.48550/arxiv.2202.13493 · pith_short_12: FTBH5UIKATX2 · pith_short_16: FTBH5UIKATX2ACG5 · pith_short_8: FTBH5UIK

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/FTBH5UIKATX2ACG5T6OXIX47L3 \
  | 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: 2cc27ed10a04efa008dd9f9d745f9f5edbc2c457c9b368e1e4b33aae02bf4251

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e644528e78daf4a0ecdb4aca179e725d96729944cf50a32106c7c2f1d6f4c0c2",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-02-28T00:42:48Z",
    "title_canon_sha256": "34322647a0d7f1e2ddf96c7c9bb5f3fa08b4df360bf0f0acf7273ebdcafb72b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.13493",
    "kind": "arxiv",
    "version": 2
  }
}