Pith Number

pith:WY6CEY5D

pith:2007:WY6CEY5DDZQM5JOGDNA7NIQZOJ

not attested not anchored not stored refs pending

Parameters of the Free Core Nutation from VLBI Data

D. Terentev, Z. Malkin

arxiv:physics/0702152 v1 · 2007-02-18 · 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{WY6CEY5DDZQM5JOGDNA7NIQZOJ}

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	2026-05-18T04:25:11.794574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b63c2263a31e60cea5c61b41f6a2197249e3d2ef0cdf9d55cac674bacaf26aa9

Aliases

arxiv: physics/0702152 · arxiv_version: physics/0702152v1 · doi: 10.48550/arxiv.physics/0702152 · pith_short_12: WY6CEY5DDZQM · pith_short_16: WY6CEY5DDZQM5JOG · pith_short_8: WY6CEY5D

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/WY6CEY5DDZQM5JOGDNA7NIQZOJ \
  | 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: b63c2263a31e60cea5c61b41f6a2197249e3d2ef0cdf9d55cac674bacaf26aa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0e303da08abc95213f05552a0a58aa723b192dec3a938e8e498657836aa6da1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2007-02-18T17:40:08Z",
    "title_canon_sha256": "4fb43a7c4481cdb64b50d75da36f272389db51131d6bc24da87a7c337606c890"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0702152",
    "kind": "arxiv",
    "version": 1
  }
}