Pith Number

pith:QDPUCOZC

pith:2013:QDPUCOZCENCRITODXSCIDI3JSS

not attested not anchored not stored refs pending

Supernova Ejecta in the Youngest Galactic Supernova Remnant G1.9+0.3

D. A. Green, K. J. Borkowski, K. Krishnamurthy, R. Petre, R. Willett, S. P. Reynolds, U. Hwang

arxiv:1305.7399 v1 · 2013-05-31 · astro-ph.HE · 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{QDPUCOZCENCRITODXSCIDI3JSS}

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	2026-05-18T01:49:39.178329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80df413b222345144dc3bc8481a36994a5bdaa0f6b98ee6ba8d95d0ea661165f

Aliases

arxiv: 1305.7399 · arxiv_version: 1305.7399v1 · doi: 10.48550/arxiv.1305.7399 · pith_short_12: QDPUCOZCENCR · pith_short_16: QDPUCOZCENCRITOD · pith_short_8: QDPUCOZC

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/QDPUCOZCENCRITODXSCIDI3JSS \
  | 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: 80df413b222345144dc3bc8481a36994a5bdaa0f6b98ee6ba8d95d0ea661165f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b478048bb2d75a571b266bc834c8c72ef30604655d78314eaa2eb3bd74e5f527",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-31T13:46:04Z",
    "title_canon_sha256": "28a7a8d84e93b1fab48e2753b00408fd933568b840743cfef4c676153f74318b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.7399",
    "kind": "arxiv",
    "version": 1
  }
}