Pith Number

pith:W2DJ54QU

pith:2015:W2DJ54QUEQUJKA3VVIYHRR4GFT

not attested not anchored not stored refs pending

A Spatially Resolved Study of the Synchrotron Emission and Titanium in Tycho's Supernova Remnant with NuSTAR

Andreas Zoglauer, Brian W. Grefenstette, Charles J. Hailey, Chris L. Fryer, Daniel K. Stern, Finn E. Christensen, Fiona A. Harrison, Hongjun An, Kristin K. Madsen, Kristoffer A. Eriksen, Laura A. Lopez, Stephen P. Reynolds, Steven E. Boggs, William W. Craig, William W. Zhang

arxiv:1504.07238 v2 · 2015-04-27 · 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{W2DJ54QUEQUJKA3VVIYHRR4GFT}

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	2026-05-18T01:25:00.774384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6869ef2142428950375aa3078c7862cf2086a1d27de8795fb51a417c4438c4b

Aliases

arxiv: 1504.07238 · arxiv_version: 1504.07238v2 · doi: 10.48550/arxiv.1504.07238 · pith_short_12: W2DJ54QUEQUJ · pith_short_16: W2DJ54QUEQUJKA3V · pith_short_8: W2DJ54QU

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/W2DJ54QUEQUJKA3VVIYHRR4GFT \
  | 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: b6869ef2142428950375aa3078c7862cf2086a1d27de8795fb51a417c4438c4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d962375b3061bc726902dc5f94158d658347780591b2816b76a9c548b5b8b8c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-04-27T20:00:35Z",
    "title_canon_sha256": "742b765a51414fc12c7731a18422898a54c06941511d0888eee8f0109a92f169"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07238",
    "kind": "arxiv",
    "version": 2
  }
}