Pith Number

pith:X4L4HQJE

pith:2011:X4L4HQJEI4DVVBN6VI73KVGCUX

not attested not anchored not stored refs pending

Length Variations of European Baselines Derived from VLBI and GPS Observations

Elena Skurikhina, Natalia Panafidina, Zinovy Malkin

arxiv:1102.0661 v1 · 2011-02-03 · physics.geo-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X4L4HQJEI4DVVBN6VI73KVGCUX}

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	2026-05-18T04:30:04.262973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf17c3c12447075a85beaa3fb554c2a5eada14bb0a73cdbb946338f5b4dac87b

Aliases

arxiv: 1102.0661 · arxiv_version: 1102.0661v1 · doi: 10.48550/arxiv.1102.0661 · pith_short_12: X4L4HQJEI4DV · pith_short_16: X4L4HQJEI4DVVBN6 · pith_short_8: X4L4HQJE

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/X4L4HQJEI4DVVBN6VI73KVGCUX \
  | 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: bf17c3c12447075a85beaa3fb554c2a5eada14bb0a73cdbb946338f5b4dac87b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "513fe7176a77fa413057e77618ead54973403a840e9618ad9f024e25d65d899c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2011-02-03T12:15:14Z",
    "title_canon_sha256": "2c1106441d574502bfb45013021d997540cbbb86056d98aa64671ea657654b5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0661",
    "kind": "arxiv",
    "version": 1
  }
}