Pith Number

pith:7HAY7OTN

pith:2017:7HAY7OTNO4BVNAC3SLO2D66WWM

not attested not anchored not stored refs pending

Polarized disk emission from Herbig Ae/Be stars observed using Gemini Planet Imager: HD 144432, HD 150193, HD 163296, and HD 169142

2. U. Exeter, 3. Harvard-Smithsonian CfA, 4. Boston U., 5. ESO, 6. AMNH, 7. STSCI), A. Aarnio (1), C. Espaillat (4), D. Wilner (3) (1. University of Michigan, F. Adams (1), John D. Monnier (1), L. Hartmann (1), M. McClure (5), M. Perrin (7), N. Calvet (1), R. Oppenheimer (6), S. Andrews (3), S. Hinkley (2), S. Kraus (2), T. J. Harries (2)

arxiv:1702.04780 v1 · 2017-02-15 · 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{7HAY7OTNO4BVNAC3SLO2D66WWM}

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	2026-05-18T00:47:47.946525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9c18fba6d770356805b92dda1fbd6b32f02543bb63584b48b9a315177928b8a

Aliases

arxiv: 1702.04780 · arxiv_version: 1702.04780v1 · doi: 10.48550/arxiv.1702.04780 · pith_short_12: 7HAY7OTNO4BV · pith_short_16: 7HAY7OTNO4BVNAC3 · pith_short_8: 7HAY7OTN

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/7HAY7OTNO4BVNAC3SLO2D66WWM \
  | 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: f9c18fba6d770356805b92dda1fbd6b32f02543bb63584b48b9a315177928b8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "000796346cbfb73795d09d35a41462244e1fb4467b632eb52bd9c502866a6a76",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-02-15T21:21:46Z",
    "title_canon_sha256": "5734f33802996ce306b5121ece0ce80b308b523fc5d2a5c31040d1bad5163839"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04780",
    "kind": "arxiv",
    "version": 1
  }
}