Pith Number

pith:BMLLHN4L

pith:2018:BMLLHN4LWT3B4FV6AMWLQWGEHB

not attested not anchored not stored refs pending

Extending Gaia DR2 with HST narrow-field astrometry: the WISE J154151.65-225024.9 test case

(2) Inst. for Astronomy, 3) ((1) INAF-OAPD, (3) Centre for Exoplanets Science, C. Fontanive (2, L. R. Bedin (1), Univ. of Edinburgh)

arxiv:1809.09181 v1 · 2018-09-24 · 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{BMLLHN4LWT3B4FV6AMWLQWGEHB}

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	2026-05-18T00:03:01.286368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b16b3b78bb4f61e16be032cb858c4384964bde2295e6991f33ce77bf78558f7

Aliases

arxiv: 1809.09181 · arxiv_version: 1809.09181v1 · doi: 10.48550/arxiv.1809.09181 · pith_short_12: BMLLHN4LWT3B · pith_short_16: BMLLHN4LWT3B4FV6 · pith_short_8: BMLLHN4L

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/BMLLHN4LWT3B4FV6AMWLQWGEHB \
  | 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: 0b16b3b78bb4f61e16be032cb858c4384964bde2295e6991f33ce77bf78558f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef563bcd54ea2b158e598aafe98a309c99b7b8a266029cd7d5ad8d60893b8333",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-09-24T19:34:08Z",
    "title_canon_sha256": "b141322c8c5a1ce4435eb15025e105d3553fe9078df40844e551ce9b513d4efd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09181",
    "kind": "arxiv",
    "version": 1
  }
}