Pith Number

pith:IKIXHVNN

pith:2021:IKIXHVNNWE7HRTP2RYEGFY425O

not attested not anchored not stored refs pending

Evidence of the $Gaia$--VLBI position differences being related to radio source structure

Harald Schuh, James M. Anderson, Ming H. Xu, Nataliya Zubko, Susanne Lunz, Tuomas Savolainen

arxiv:2101.12685 v1 · 2021-01-29 · astro-ph.GA · 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{IKIXHVNNWE7HRTP2RYEGFY425O}

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	2026-07-05T02:29:43.561793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

429173d5adb13e78cdfa8e0862e39aeb9edcf5522f89df485b1d6e62e664c2c1

Aliases

arxiv: 2101.12685 · arxiv_version: 2101.12685v1 · doi: 10.48550/arxiv.2101.12685 · pith_short_12: IKIXHVNNWE7H · pith_short_16: IKIXHVNNWE7HRTP2 · pith_short_8: IKIXHVNN

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/IKIXHVNNWE7HRTP2RYEGFY425O \
  | 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: 429173d5adb13e78cdfa8e0862e39aeb9edcf5522f89df485b1d6e62e664c2c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "caf8fb8d9a5f7b61124552f248798360fb36f1c3ba4915c90cf5c1bef56c77a4",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-01-29T17:07:30Z",
    "title_canon_sha256": "a821766bec81ae1c9e3491857bcaa6edcd27689be3e43728afe3d704383fffc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.12685",
    "kind": "arxiv",
    "version": 1
  }
}