Pith Number

pith:VOTHJMQB

pith:2020:VOTHJMQB65V5SHWQCN3EXLF7HL

not attested not anchored not stored refs pending

GPCAL: a generalized calibration pipeline for instrumental polarization in VLBI data

Do-Young Byun (KASI, Jongho Park (ASIAA, Keiichi Asada (ASIAA), SNU), UST), Youngjoo Yun (KASI)

arxiv:2011.09713 v1 · 2020-11-19 · astro-ph.IM · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VOTHJMQB65V5SHWQCN3EXLF7HL}

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	2026-07-05T02:07:52.271486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aba674b201f76bd91ed013764bacbf3acac1bb5bab565266e6efe017464c4d09

Aliases

arxiv: 2011.09713 · arxiv_version: 2011.09713v1 · doi: 10.48550/arxiv.2011.09713 · pith_short_12: VOTHJMQB65V5 · pith_short_16: VOTHJMQB65V5SHWQ · pith_short_8: VOTHJMQB

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/VOTHJMQB65V5SHWQCN3EXLF7HL \
  | 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: aba674b201f76bd91ed013764bacbf3acac1bb5bab565266e6efe017464c4d09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a2ae0cc4028644e4af3b8ef13c480148ef2a6623f3c458a4a84037fa3ab146c",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-11-19T08:31:19Z",
    "title_canon_sha256": "e6f32e4a3ab2c818472e26e16b15c54e496ddb77a1b5d805a35eade4f643c743"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.09713",
    "kind": "arxiv",
    "version": 1
  }
}