Pith Number

pith:Q7TR3BDZ

pith:2019:Q7TR3BDZVSTVT67EZD2QKCLCBH

not attested not anchored not stored refs pending

Standard Magnetic Field Production at Huairou Solar Observing Station

GangHua Lin, Jiangtao Su, Suo Liu, Xiaofan Wang, Xiao Yang, Yuanyong Deng

arxiv:1902.00344 v1 · 2019-02-01 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7TR3BDZVSTVT67EZD2QKCLCBH}

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	2026-05-17T23:54:57.706539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87e71d8479aca759fbe4c8f505096209e5483b24c63a8ffab75a77a7d2177473

Aliases

arxiv: 1902.00344 · arxiv_version: 1902.00344v1 · doi: 10.48550/arxiv.1902.00344 · pith_short_12: Q7TR3BDZVSTV · pith_short_16: Q7TR3BDZVSTVT67E · pith_short_8: Q7TR3BDZ

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/Q7TR3BDZVSTVT67EZD2QKCLCBH \
  | 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: 87e71d8479aca759fbe4c8f505096209e5483b24c63a8ffab75a77a7d2177473

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06491000ba531aa608467caa4a68adf67b6d0a23e93ec269d6b41b6e0dfbeac8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-01T14:15:51Z",
    "title_canon_sha256": "8c23cb0c71d8f5c09a17a6919d084fcfa577852719b71795e1c1989d63336081"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00344",
    "kind": "arxiv",
    "version": 1
  }
}