Pith Number

pith:4FHNKRMY

pith:2011:4FHNKRMYTV5MQQZWMPIPEGYQRH

not attested not anchored not stored refs pending

Expansion of the Youngest Galactic Supernova Remnant G1.9+0.3

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

arxiv:1106.4498 v1 · 2011-06-22 · 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{4FHNKRMYTV5MQQZWMPIPEGYQRH}

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	2026-05-18T02:01:31.962625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e14ed545989d7ac8433663d0f21b1089e8169eca7bc2d37ebbf415786f56f981

Aliases

arxiv: 1106.4498 · arxiv_version: 1106.4498v1 · doi: 10.48550/arxiv.1106.4498 · pith_short_12: 4FHNKRMYTV5M · pith_short_16: 4FHNKRMYTV5MQQZW · pith_short_8: 4FHNKRMY

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/4FHNKRMYTV5MQQZWMPIPEGYQRH \
  | 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: e14ed545989d7ac8433663d0f21b1089e8169eca7bc2d37ebbf415786f56f981

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "610ed5bdeacb7d898fdd88ed783327c99f1aa79a4ea818af66be618f8b9ac2ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-06-22T16:47:18Z",
    "title_canon_sha256": "37686d2f121959bbb8b42974ae3ecf74b4d33e36c84c1f297e39f61f477cd80e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.4498",
    "kind": "arxiv",
    "version": 1
  }
}