Pith Number

pith:7ZJIT2HJ

pith:2020:7ZJIT2HJHOAJ4R3OSVNL7G2LZG

not attested not anchored not stored refs pending

Mapping the spectral index of Cas A: evidence for flattening from radio to infrared

J.V. Hern\'andez Santisteban, J. Vink, P. Zhou, T. DeLaney, V. Dom\v{c}ek

arxiv:2005.12677 v2 · 2020-05-26 · 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{7ZJIT2HJHOAJ4R3OSVNL7G2LZG}

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	2026-07-05T02:13:44.997906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe5289e8e93b809e476e955abf9b4bc9bc5704d1a0b9f57753308cac0c5353e4

Aliases

arxiv: 2005.12677 · arxiv_version: 2005.12677v2 · doi: 10.48550/arxiv.2005.12677 · pith_short_12: 7ZJIT2HJHOAJ · pith_short_16: 7ZJIT2HJHOAJ4R3O · pith_short_8: 7ZJIT2HJ

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/7ZJIT2HJHOAJ4R3OSVNL7G2LZG \
  | 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: fe5289e8e93b809e476e955abf9b4bc9bc5704d1a0b9f57753308cac0c5353e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfc55cea61c98318d2f7a30b220dfe98b61845d187c72acbb33b916211bea3a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-05-26T13:01:28Z",
    "title_canon_sha256": "1d21da303da3259a30807f1ebc4339534c3d2005f9e77167727c5884573a792b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.12677",
    "kind": "arxiv",
    "version": 2
  }
}