Pith Number

pith:EJ7ELRNG

pith:2020:EJ7ELRNGB5ZJHZ6U5MICUDHHFU

not attested not anchored not stored refs pending

Spectral and atmospheric characterisation of a new benchmark brown dwarf HD13724B

A. Cheetham, D. S\'egransan, E. L. Rickman, J.-B. Delisle, J. Hagelberg, J.-L. Beuzit, S. Udry, T. Forveille

arxiv:2002.08319 v2 · 2020-02-18 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJ7ELRNGB5ZJHZ6U5MICUDHHFU}

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	2026-07-05T00:52:30.060609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

227e45c5a60f7293e7d4eb102a0ce72d3deb97ea659731b543d04d78feeab8ba

Aliases

arxiv: 2002.08319 · arxiv_version: 2002.08319v2 · doi: 10.48550/arxiv.2002.08319 · pith_short_12: EJ7ELRNGB5ZJ · pith_short_16: EJ7ELRNGB5ZJHZ6U · pith_short_8: EJ7ELRNG

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/EJ7ELRNGB5ZJHZ6U5MICUDHHFU \
  | 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: 227e45c5a60f7293e7d4eb102a0ce72d3deb97ea659731b543d04d78feeab8ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eecd234a46504ecd16d303b74361de427d87218e6b8def877e84a5c8ede3ee94",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-02-18T16:13:01Z",
    "title_canon_sha256": "d2e22e16215b9654476cbfb3aae6668b343c86fc41949441cbd328c32428b49f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.08319",
    "kind": "arxiv",
    "version": 2
  }
}