Pith Number

pith:G7L6AU73

pith:2020:G7L6AU73BVHIIEPUFSVALYL7AY

not attested not anchored not stored refs pending

SCExAO/CHARIS High-Contrast Imaging of Spirals and Darkening Features in the HD 34700 A Protoplanetary Disk

Carol A. Grady, Charles A. Beichman, Eiji Akiyama, Frantz Martinache, Gillian R. Knapp, Jaehan Bae, Jeffrey Chilcote, Jeremy N. Kasdin, John P. Wisniewski, Julien Lozi, Jungmi Kwon, Kevin R. Wagner, Marie Ygouf, Masahiko Hayashi, Michael Sitko, Michael W. McElwain, Michihiro Takami, Motohide Tamura, Nemanja Jovanovic, Olivier Guyon, Ryo Tazaki, Sanemichi Z. Takahashi, Taichi Uyama, Takayuki Muto, Thayne Currie, Timothy D. Brandt, Tomoyuki Kudo, Tyler Groff, Valentin Christiaens, Yi Yang

arxiv:2007.11655 v1 · 2020-07-22 · 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{G7L6AU73BVHIIEPUFSVALYL7AY}

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	2026-07-05T01:21:39.162715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37d7e053fb0d4e8411f42caa05e17f06019d1fbca5651c8aa6a2e1f6917c682b

Aliases

arxiv: 2007.11655 · arxiv_version: 2007.11655v1 · doi: 10.48550/arxiv.2007.11655 · pith_short_12: G7L6AU73BVHI · pith_short_16: G7L6AU73BVHIIEPU · pith_short_8: G7L6AU73

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/G7L6AU73BVHIIEPUFSVALYL7AY \
  | 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: 37d7e053fb0d4e8411f42caa05e17f06019d1fbca5651c8aa6a2e1f6917c682b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6f9f9f89a2deee48b2728591f027a59c530af0ea1397a9510c5f28d03249b88",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-07-22T20:12:25Z",
    "title_canon_sha256": "84d39f81c1039ce25e5a0976f35abb2566eed821dd7dbfdd7e90a8cac1ec8bcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.11655",
    "kind": "arxiv",
    "version": 1
  }
}