Pith Number

pith:TREWO3AN

pith:2015:TREWO3ANRHDCFBMGMDTYRQ6CLF

not attested not anchored not stored refs pending

Near-infrared Extinction due to Cool Supernova Dust in Cassiopeia A

Bon-Chul Koo, Dae-Sik Moon, Jae-Joon Lee, Yong-Hyun Lee

arxiv:1507.05399 v1 · 2015-07-20 · 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{TREWO3ANRHDCFBMGMDTYRQ6CLF}

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	2026-05-18T01:35:44.501094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c49676c0d89c622858660e788c3c25957ce93f30ab2548be117d926dae84d86

Aliases

arxiv: 1507.05399 · arxiv_version: 1507.05399v1 · doi: 10.48550/arxiv.1507.05399 · pith_short_12: TREWO3ANRHDC · pith_short_16: TREWO3ANRHDCFBMG · pith_short_8: TREWO3AN

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/TREWO3ANRHDCFBMGMDTYRQ6CLF \
  | 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: 9c49676c0d89c622858660e788c3c25957ce93f30ab2548be117d926dae84d86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75f9da1dffc9ffc2087fa0a24a87430ca04e9a0b558daa4e380c740773f60f0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-20T07:14:50Z",
    "title_canon_sha256": "b25bbe1f39e253d05288bceb43ec7e9d2c2bb4760f613c26ac60d040d13a2588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05399",
    "kind": "arxiv",
    "version": 1
  }
}