Pith Number

pith:GDFMMJHT

pith:2021:GDFMMJHTYY6RFMTEBWSI575BWL

not attested not anchored not stored refs pending

High-contrast observations of brown dwarf companion HR 2562 B with the vector Apodizing Phase Plate coronagraph

Alexander J. Bohn, Ben J. Sutlieff, David Charbonneau, David S. Doelman, Frans Snik, Jared R. Males, Jayne L. Birkby, Katie M. Morzinski, Laird M. Close, Matthew A. Kenworthy, Philip M. Hinz

arxiv:2106.14890 v1 · 2021-06-28 · astro-ph.EP · astro-ph.IM · 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{GDFMMJHTYY6RFMTEBWSI575BWL}

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	2026-07-05T02:57:24.720970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30cac624f3c63d12b2640da48effa1b2fcfc85ef4e4cc1bcefbd93ae1c42e7d4

Aliases

arxiv: 2106.14890 · arxiv_version: 2106.14890v1 · doi: 10.48550/arxiv.2106.14890 · pith_short_12: GDFMMJHTYY6R · pith_short_16: GDFMMJHTYY6RFMTE · pith_short_8: GDFMMJHT

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/GDFMMJHTYY6RFMTEBWSI575BWL \
  | 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: 30cac624f3c63d12b2640da48effa1b2fcfc85ef4e4cc1bcefbd93ae1c42e7d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e9090089d3b04932a4ec61e76f2ea36fdeb3ee5d8b6c8f99768712d025a2277",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-06-28T18:00:00Z",
    "title_canon_sha256": "63c60a73f97e3ef132ed38c30442e5e4216dff49dcd6f433af712a2de894d82a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.14890",
    "kind": "arxiv",
    "version": 1
  }
}