Pith Number

pith:NHRQZDZU

pith:2014:NHRQZDZUXDJFTQZPEUXN4HPKJ3

not attested not anchored not stored refs pending

GPI PSF subtraction with TLOCI: the next evolution in exoplanet/disk high-contrast imaging

Bruce Macintosh, Carlos Correia, Christian Marois, Patrick Ingraham, Raphael Galicher, Rob De Rosa, Thayne Currie

arxiv:1407.2555 v1 · 2014-07-09 · astro-ph.IM · 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{NHRQZDZUXDJFTQZPEUXN4HPKJ3}

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	2026-05-18T01:42:38.532475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69e30c8f34b8d259c32f252ede1dea4ef3a955025d1ef5853b465144a555b2fa

Aliases

arxiv: 1407.2555 · arxiv_version: 1407.2555v1 · doi: 10.48550/arxiv.1407.2555 · pith_short_12: NHRQZDZUXDJF · pith_short_16: NHRQZDZUXDJFTQZP · pith_short_8: NHRQZDZU

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/NHRQZDZUXDJFTQZPEUXN4HPKJ3 \
  | 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: 69e30c8f34b8d259c32f252ede1dea4ef3a955025d1ef5853b465144a555b2fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4dbca17d0cb9c61a00a043e2544ed34bc8a437eb10f6fd502d1df19f563789b",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-07-09T16:36:09Z",
    "title_canon_sha256": "cfa7a20a99f5a8f40ba6a7f37da4c93fbf3c0a51eb4bfb26dd0b26519d6d911f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.2555",
    "kind": "arxiv",
    "version": 1
  }
}