Pith Number

pith:3GPP3XQH

pith:2016:3GPP3XQH6RCAMJ5RUTHIKD2LME

not attested not anchored not stored refs pending

An X-ray and Radio Study of the Varying Expansion Velocities in Tycho's Supernova Remnant

Brian J. Williams, John M. Blondin, John W. Hewitt, Kazimierz J. Borkowski, Laura Chomiuk, Parviz Ghavamian, Robert Petre, Stephen P. Reynolds

arxiv:1604.01779 v1 · 2016-04-06 · 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{3GPP3XQH6RCAMJ5RUTHIKD2LME}

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	2026-05-18T01:13:11.220781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d99efdde07f4440627b1a4ce850f4b61035f1469501b1f4a28443af762e0d810

Aliases

arxiv: 1604.01779 · arxiv_version: 1604.01779v1 · doi: 10.48550/arxiv.1604.01779 · pith_short_12: 3GPP3XQH6RCA · pith_short_16: 3GPP3XQH6RCAMJ5R · pith_short_8: 3GPP3XQH

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/3GPP3XQH6RCAMJ5RUTHIKD2LME \
  | 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: d99efdde07f4440627b1a4ce850f4b61035f1469501b1f4a28443af762e0d810

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98f680ec0d31dccbf69e9816330a1dab351e29057156537fa69380f87cee828e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-04-06T20:00:20Z",
    "title_canon_sha256": "ea852e8ca4e94ad8eb8dffd4ecf9ce11430acc1633897acc0fc72f3d844e36bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01779",
    "kind": "arxiv",
    "version": 1
  }
}