Pith Number

pith:FIR42I6B

pith:2020:FIR42I6BJIBOENTOVV7JAQTJLZ

not attested not anchored not stored refs pending

ALMA High-frequency Long Baseline Campaign in 2017: Band-to-band Phase Referencing in Submillimeter Waves

Akihiko Hirota, Anita M. S. Richards, Edward B. Fomalont, Elizabeth M. Humphreys, Eric Villard, John M. Carpenter, Loreto Barcos-Mu\~noz, Luke T. Maud, Neil M. Phillips, Satoko Takahashi, Stuartt Corder, Tsuyoshi Sawada, William R. F. Dent, Yoshiharu Asaki

arxiv:2003.07472 v2 · 2020-03-16 · 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{FIR42I6BJIBOENTOVV7JAQTJLZ}

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	2026-07-05T00:49:42.960286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a23cd23c14a02e2366ead7e9042695e54f016fb80fbacddcff8d192f7202bae

Aliases

arxiv: 2003.07472 · arxiv_version: 2003.07472v2 · doi: 10.48550/arxiv.2003.07472 · pith_short_12: FIR42I6BJIBO · pith_short_16: FIR42I6BJIBOENTO · pith_short_8: FIR42I6B

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/FIR42I6BJIBOENTOVV7JAQTJLZ \
  | 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: 2a23cd23c14a02e2366ead7e9042695e54f016fb80fbacddcff8d192f7202bae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f01c5e1601fbe4c46d2091d95776f881e2cb8064c97b86a37ffd69c5932a452",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-03-16T23:48:28Z",
    "title_canon_sha256": "51995cdb3e77ed7cfe5593c9b686c166391a9306f0aa995235b782e6722aa200"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.07472",
    "kind": "arxiv",
    "version": 2
  }
}