Pith Number

pith:OVBVNBDN

pith:2020:OVBVNBDNNGJY3RYBB6A4KB2I27

not attested not anchored not stored refs pending

Unification of global height system at centimeter level using precise frequency signal links

Shuangxi Zhang, Wen-Bin Shen, Ziyu Shen

arxiv:2008.05868 v1 · 2020-08-13 · 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{OVBVNBDNNGJY3RYBB6A4KB2I27}

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	2026-07-05T01:26:58.309290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

754356846d69938dc7010f81c50748d7dde8487b3c4f09d9bc7b828e78e1d93c

Aliases

arxiv: 2008.05868 · arxiv_version: 2008.05868v1 · doi: 10.48550/arxiv.2008.05868 · pith_short_12: OVBVNBDNNGJY · pith_short_16: OVBVNBDNNGJY3RYB · pith_short_8: OVBVNBDN

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/OVBVNBDNNGJY3RYBB6A4KB2I27 \
  | 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: 754356846d69938dc7010f81c50748d7dde8487b3c4f09d9bc7b828e78e1d93c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c341bfed3a607dc26c537c637fb6ae12f537932653b3e080b21ee425f02f7b94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2020-08-13T12:56:04Z",
    "title_canon_sha256": "1af2c943a8428f885d845474bac07a0c3d0dac45d410a65e2b99435b860381eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.05868",
    "kind": "arxiv",
    "version": 1
  }
}