Pith Number

pith:YBHE4LH4

pith:2021:YBHE4LH4C2N7A67IYOJIHTIEUW

not attested not anchored not stored refs pending

Weather on Other Worlds. VI. Optical Spectrophotometry of Luhman 16B Reveals Large-amplitude Variations in the Alkali Lines

A. N. Heinze, Michael Gillon, Radostin Kurtev, Stanimir Metchev

arxiv:2107.10995 v1 · 2021-07-23 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YBHE4LH4C2N7A67IYOJIHTIEUW}

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	2026-07-05T03:26:01.858276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c04e4e2cfc169bf07be8c39283cd04a5910465ef3daff3d3694bf4b11d8bce8d

Aliases

arxiv: 2107.10995 · arxiv_version: 2107.10995v1 · doi: 10.48550/arxiv.2107.10995 · pith_short_12: YBHE4LH4C2N7 · pith_short_16: YBHE4LH4C2N7A67I · pith_short_8: YBHE4LH4

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/YBHE4LH4C2N7A67IYOJIHTIEUW \
  | 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: c04e4e2cfc169bf07be8c39283cd04a5910465ef3daff3d3694bf4b11d8bce8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c35be90ca739343b9b0d40eabe8b719a6d0feaed033355bdf30f6d728d30747",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-07-23T02:07:26Z",
    "title_canon_sha256": "936a79a118728e9b3a88882ef02fbce1a413c9a2d14dfcccc9e48aafa3c50ff6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.10995",
    "kind": "arxiv",
    "version": 1
  }
}