Pith Number

pith:3IAZ42V2

pith:2015:3IAZ42V2GC3ZSDJEG7LRUU7X7G

not attested not anchored not stored refs pending

Physical Dust Models for the Extinction toward Supernova 2014J in M82

Aigen Li, B.W. Jiang, Jian Gao, Jun Li, Xiaofeng Wang

arxiv:1507.00417 v1 · 2015-07-02 · astro-ph.HE · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3IAZ42V2GC3ZSDJEG7LRUU7X7G}

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	2026-05-18T01:36:52.612168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da019e6aba30b7990d2437d71a53f7f9b0424cf57e4468b9b71d9af916d44183

Aliases

arxiv: 1507.00417 · arxiv_version: 1507.00417v1 · doi: 10.48550/arxiv.1507.00417 · pith_short_12: 3IAZ42V2GC3Z · pith_short_16: 3IAZ42V2GC3ZSDJE · pith_short_8: 3IAZ42V2

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/3IAZ42V2GC3ZSDJEG7LRUU7X7G \
  | 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: da019e6aba30b7990d2437d71a53f7f9b0424cf57e4468b9b71d9af916d44183

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dcce919be96ce2970e0945ca81b719b938d5df0130fd13e0514c2dc766770e5",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-07-02T03:27:09Z",
    "title_canon_sha256": "7025e8bd3e0ad3b5ca8eb2348812e719c52e24a89dc1dca038d0e606c7d205f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00417",
    "kind": "arxiv",
    "version": 1
  }
}