Pith Number

pith:JCI56JRU

pith:2026:JCI56JRUHQWZUDJ5JCFQOTL5UJ

not attested not anchored not stored refs pending

Euclid Q1 reveals spatial variations of the extinction law in the dense cloud LDN 1641

Kun Wang, Rui Chen, Shu Wang, Xiaodian Chen

arxiv:2607.04286 v1 · 2026-07-05 · 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{JCI56JRUHQWZUDJ5JCFQOTL5UJ}

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	2026-07-07T02:19:07.028064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4891df26343c2d9a0d3d488b074d7da268531e64ead9297f58e7dc0cb50e3bf3

Aliases

arxiv: 2607.04286 · arxiv_version: 2607.04286v1 · doi: 10.48550/arxiv.2607.04286 · pith_short_12: JCI56JRUHQWZ · pith_short_16: JCI56JRUHQWZUDJ5 · pith_short_8: JCI56JRU

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/JCI56JRUHQWZUDJ5JCFQOTL5UJ \
  | 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: 4891df26343c2d9a0d3d488b074d7da268531e64ead9297f58e7dc0cb50e3bf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bd0294b68c5bd274dd44b873781bfbd12254062973a9f1a09c897bfedd2db8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-05T12:59:43Z",
    "title_canon_sha256": "9ee0a246d64fd83d7b67ba5c09e2a2f0ce6d77ab2f7a9083dbfb43eb9dfcce3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.04286",
    "kind": "arxiv",
    "version": 1
  }
}