Pith Number

pith:FCSIPRVR

pith:2013:FCSIPRVR3UIDGZFJLAII433VTI

not attested not anchored not stored refs pending

Azimuthal Density Variations Around the Rim of Tycho's Supernova Remnant

Brian J. Williams, John M. Blondin, John W. Hewitt, Kazimierz J. Borkowski, Parviz Ghavamian, Robert Petre, S. Alwin Mao, Stephen P. Reynolds

arxiv:1305.0567 v1 · 2013-05-02 · 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{FCSIPRVR3UIDGZFJLAII433VTI}

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	2026-05-18T01:50:13.018939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28a487c6b1dd103364a958108e6f759a00ba132e13550cf424d305bebc62fa1b

Aliases

arxiv: 1305.0567 · arxiv_version: 1305.0567v1 · doi: 10.48550/arxiv.1305.0567 · pith_short_12: FCSIPRVR3UID · pith_short_16: FCSIPRVR3UIDGZFJ · pith_short_8: FCSIPRVR

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/FCSIPRVR3UIDGZFJLAII433VTI \
  | 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: 28a487c6b1dd103364a958108e6f759a00ba132e13550cf424d305bebc62fa1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "709f259ccdefd7923e2ea0c2c6165ced644876e6b80f89f2e9cf9380dca0d5c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-02T20:01:49Z",
    "title_canon_sha256": "c43d1f1d9264d7925e35346d4bf8478def74c11318a985d3694806cd72ea311e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0567",
    "kind": "arxiv",
    "version": 1
  }
}