Pith Number

pith:4SW3DJG5

pith:2017:4SW3DJG5QH3VZDUKCGPAXDGGX4

not attested not anchored not stored refs pending

Investigating the effect of cosmic opacity on standard candles

F. Y. Wang (NJU), H. Yu, J. Hu

arxiv:1701.06019 v1 · 2017-01-21 · astro-ph.CO · 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{4SW3DJG5QH3VZDUKCGPAXDGGX4}

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	2026-05-18T00:50:17.063745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4adb1a4dd81f75c8e8a119e0b8cc6bf1d3f0adc1fbfbacf1ee9365ddf1b3c31

Aliases

arxiv: 1701.06019 · arxiv_version: 1701.06019v1 · doi: 10.48550/arxiv.1701.06019 · pith_short_12: 4SW3DJG5QH3V · pith_short_16: 4SW3DJG5QH3VZDUK · pith_short_8: 4SW3DJG5

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/4SW3DJG5QH3VZDUKCGPAXDGGX4 \
  | 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: e4adb1a4dd81f75c8e8a119e0b8cc6bf1d3f0adc1fbfbacf1ee9365ddf1b3c31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d567c4fd8403b246d955c10a97420257a2d3cd092a9bc6549fe54e505e6cd7ec",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-01-21T12:35:04Z",
    "title_canon_sha256": "f44e649003c1a1ec2b529d37dc99290ed706462d0e2cfa9d767890bff1956a2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06019",
    "kind": "arxiv",
    "version": 1
  }
}