Pith Number

pith:VBNKHRL3

pith:2014:VBNKHRL3ODZF7HJ2GQVMB7UKJ5

not attested not anchored not stored refs pending

Nonuniform Expansion of 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:1406.2287 v3 · 2014-06-09 · 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{VBNKHRL3ODZF7HJ2GQVMB7UKJ5}

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	2026-05-18T01:43:00.961201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a85aa3c57b70f25f9d3a342ac0fe8a4f7f3f25228eed809f5642fa71c98fb58d

Aliases

arxiv: 1406.2287 · arxiv_version: 1406.2287v3 · doi: 10.48550/arxiv.1406.2287 · pith_short_12: VBNKHRL3ODZF · pith_short_16: VBNKHRL3ODZF7HJ2 · pith_short_8: VBNKHRL3

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/VBNKHRL3ODZF7HJ2GQVMB7UKJ5 \
  | 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: a85aa3c57b70f25f9d3a342ac0fe8a4f7f3f25228eed809f5642fa71c98fb58d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "191af2e979eeb30a66753bd2d72a021bab82253cb0069712c188539a9cc4f3df",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-06-09T19:12:03Z",
    "title_canon_sha256": "4fc190e3d4af7363cc912b64d7a947edf757bbcab7acf6f43c809d9903da7aa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2287",
    "kind": "arxiv",
    "version": 3
  }
}