Pith Number

pith:TRVF2GCH

pith:2019:TRVF2GCHOD77NE3OL4BCGDT2WF

not attested not anchored not stored refs pending

Professor Chen Ping Yang's early significant contributions to mathematical physics

Feng He, Xi-Wen Guan

arxiv:1904.02283 v1 · 2019-04-03 · physics.hist-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{TRVF2GCHOD77NE3OL4BCGDT2WF}

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	2026-05-17T23:48:59.653409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c6a5d184770fff6936e5f02230e7ab14047f6d4cc40e54169f82d15afb233b3

Aliases

arxiv: 1904.02283 · arxiv_version: 1904.02283v1 · doi: 10.48550/arxiv.1904.02283 · pith_short_12: TRVF2GCHOD77 · pith_short_16: TRVF2GCHOD77NE3O · pith_short_8: TRVF2GCH

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/TRVF2GCHOD77NE3OL4BCGDT2WF \
  | 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: 9c6a5d184770fff6936e5f02230e7ab14047f6d4cc40e54169f82d15afb233b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07a410c4aca9dd41f3aa47d0538b1630f52d5379f7609f401b219e04bf070928",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2019-04-03T12:50:33Z",
    "title_canon_sha256": "76526bef305eb0138569fd97dc9c203d935063d9a521ebbc0c6d98d7f203ade6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02283",
    "kind": "arxiv",
    "version": 1
  }
}