Pith Number

pith:MA6TSUTJ

pith:2015:MA6TSUTJAPBAQUL2V2EWGWGOKS

not attested not anchored not stored refs pending

X-Ray afterglow of SWIFT J1644+57: a Compton echo?

Albert K. H. Kong, C. M. Ko, D. O. Chernyshov, K. S. Cheng, V. A. Dogiel

arxiv:1512.05037 v2 · 2015-12-16 · 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{MA6TSUTJAPBAQUL2V2EWGWGOKS}

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	2026-05-18T01:23:02.219611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

603d39526903c208517aae896358ce548dd615e7d0cd9a811ea07548746e12d7

Aliases

arxiv: 1512.05037 · arxiv_version: 1512.05037v2 · doi: 10.48550/arxiv.1512.05037 · pith_short_12: MA6TSUTJAPBA · pith_short_16: MA6TSUTJAPBAQUL2 · pith_short_8: MA6TSUTJ

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/MA6TSUTJAPBAQUL2V2EWGWGOKS \
  | 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: 603d39526903c208517aae896358ce548dd615e7d0cd9a811ea07548746e12d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de705dda4594c9ea59e1ceda418b2146ebf3ae6e2ae3d572b2d395fbc79bcdc4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-12-16T03:38:06Z",
    "title_canon_sha256": "3ef1ae76bb0d096ec7c4f74f3a63a51facac2b96bfaf81b176d9347d0759d25f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.05037",
    "kind": "arxiv",
    "version": 2
  }
}