Pith Number

pith:Y7QAQLYJ

pith:2022:Y7QAQLYJC3M4SE2TDBZ5WJMRWW

not attested not anchored not stored refs pending

A Package for the Automated Classification of Images Containing Supernova Light Echoes

A. Bhullar, D. L. Welch, R. A. Ali

arxiv:2208.07260 v1 · 2022-08-15 · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7QAQLYJC3M4SE2TDBZ5WJMRWW}

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	2026-07-05T04:48:25.834429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7e0082f0916d9c913531873db2591b5bbf35fc683fe24f238931036e8f66dab

Aliases

arxiv: 2208.07260 · arxiv_version: 2208.07260v1 · doi: 10.48550/arxiv.2208.07260 · pith_short_12: Y7QAQLYJC3M4 · pith_short_16: Y7QAQLYJC3M4SE2T · pith_short_8: Y7QAQLYJ

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/Y7QAQLYJC3M4SE2TDBZ5WJMRWW \
  | 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: c7e0082f0916d9c913531873db2591b5bbf35fc683fe24f238931036e8f66dab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb13594fc258062d0ea98bc1a035266f1598e5baa4be8c5bb4a676e7b99654fd",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-08-15T15:13:34Z",
    "title_canon_sha256": "f8d994598229bc675121a10f935e1dcfcc592db46171ecae141dc097c1172b10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.07260",
    "kind": "arxiv",
    "version": 1
  }
}