Pith Number

pith:EFMHY3AB

pith:2014:EFMHY3ABEIVYQTXS7UOHYNCOI2

not attested not anchored not stored refs pending

Swift Ultraviolet Observations of Supernova 2014J in M82: Large Extinction from Interstellar Dust

Alice Breeveld, Dieter H. Hartmann, Kevin Krisciunas, Lifan Wang, Massimiliano De Pasquale, Mat Page, Michael Siegel, Michael T. Smitka, N. P. M. Kuin, Peter A. Milne, Peter J. Brown

arxiv:1408.2381 v1 · 2014-08-11 · 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{EFMHY3ABEIVYQTXS7UOHYNCOI2}

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	2026-05-18T02:03:37.463277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21587c6c01222b884ef2fd1c7c344e469d8383be7f8c4f030a3b71c1707be933

Aliases

arxiv: 1408.2381 · arxiv_version: 1408.2381v1 · doi: 10.48550/arxiv.1408.2381 · pith_short_12: EFMHY3ABEIVY · pith_short_16: EFMHY3ABEIVYQTXS · pith_short_8: EFMHY3AB

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/EFMHY3ABEIVYQTXS7UOHYNCOI2 \
  | 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: 21587c6c01222b884ef2fd1c7c344e469d8383be7f8c4f030a3b71c1707be933

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "957038b46214ada887acdc1551cd8e7db88f1f2fcd59697ed296e185d3513cb1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-08-11T11:51:22Z",
    "title_canon_sha256": "355e39fcdf41246b44c5078342d5aecf76d5b8a2cf39a48f86f0085eb7ab543e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2381",
    "kind": "arxiv",
    "version": 1
  }
}