Pith Number

pith:BQTSDUGW

pith:2023:BQTSDUGWET7X65ITRNM4VCESIR

not attested not anchored not stored refs pending

Experimental demonstration of spectral linear dark field control at NASA's high contrast imaging testbeds

A J Eldorado Riggs, Alex B. Walter, Axel Potier, Camilo Mejia Prada, Garreth Ruane, Kyohoon Ahn, Matthew Noyes, Olivier Guyon, Phillip K. Poon

arxiv:2309.17449 v1 · 2023-09-29 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQTSDUGWET7X65ITRNM4VCESIR}

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	2026-07-05T06:55:45.323259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c2721d0d624ff7f75138b59ca88924463251f7200dab7552867a4640b822d77

Aliases

arxiv: 2309.17449 · arxiv_version: 2309.17449v1 · doi: 10.48550/arxiv.2309.17449 · pith_short_12: BQTSDUGWET7X · pith_short_16: BQTSDUGWET7X65IT · pith_short_8: BQTSDUGW

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/BQTSDUGWET7X65ITRNM4VCESIR \
  | 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: 0c2721d0d624ff7f75138b59ca88924463251f7200dab7552867a4640b822d77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff54ba9da47bd394d74ee04f735449eacf6da364bb78cd8e49ce1054a4c94e6d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2023-09-29T17:58:15Z",
    "title_canon_sha256": "ffa9dc592a9d1e6b352ae359c87648b0c9681e2e5c0e59b8e41be6e12e39a43e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.17449",
    "kind": "arxiv",
    "version": 1
  }
}