Pith Number

pith:XPCSAUQB

pith:2015:XPCSAUQBFBPGO4C36PJTR4ASQM

not attested not anchored not stored refs pending

Late time multi wavelength observations of Swift J1644+5734: A luminous optical/IR bump and quiescent X-ray emission

A.J. Levan, A.S. Fruchter, B.D. Metzger, D.A. Perley, E.R. Stanway, G.C. Brown, J.D. Lyman, J.S. Bloom, K.L. Page, K. Wiersema, N.R. Tanvir, P.T. O'Brien, S.B. Cenko

arxiv:1509.08945 v1 · 2015-09-29 · 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{XPCSAUQBFBPGO4C36PJTR4ASQM}

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	2026-05-18T01:19:01.949179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbc5205201285e67705bf3d338f012831e6be5f0fdc30eb22ec287648390a1e6

Aliases

arxiv: 1509.08945 · arxiv_version: 1509.08945v1 · doi: 10.48550/arxiv.1509.08945 · pith_short_12: XPCSAUQBFBPG · pith_short_16: XPCSAUQBFBPGO4C3 · pith_short_8: XPCSAUQB

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/XPCSAUQBFBPGO4C36PJTR4ASQM \
  | 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: bbc5205201285e67705bf3d338f012831e6be5f0fdc30eb22ec287648390a1e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2f45532a07098d92028afe1cd9ba4c44bb5c4a644bc57bbaea05b6a49e37c0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-09-29T20:40:46Z",
    "title_canon_sha256": "1e3e51dfec656256ec6d19cf83a34bc04f868dc22285caf1bee4556dbfea26ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.08945",
    "kind": "arxiv",
    "version": 1
  }
}