Pith Number

pith:W5B4HE2P

pith:2017:W5B4HE2PDOM2JAZ5L4UBSMKIU6

not attested not anchored not stored refs pending

Unidirectional zero reflection as gauged parity-time symmetry

Hong Chen, James Gear, Jensen Li, Liwen Zhang, Richard Fitzgerald, Shiyi Xiao, Stefan Rotter, Yong Sun

arxiv:1707.09413 v1 · 2017-07-21 · physics.class-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{W5B4HE2PDOM2JAZ5L4UBSMKIU6}

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	2026-05-18T00:19:03.857224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b743c3934f1b99a4833d5f28193148a7be6e471266c95f2a202161fbe3a78f4c

Aliases

arxiv: 1707.09413 · arxiv_version: 1707.09413v1 · doi: 10.48550/arxiv.1707.09413 · pith_short_12: W5B4HE2PDOM2 · pith_short_16: W5B4HE2PDOM2JAZ5 · pith_short_8: W5B4HE2P

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/W5B4HE2PDOM2JAZ5L4UBSMKIU6 \
  | 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: b743c3934f1b99a4833d5f28193148a7be6e471266c95f2a202161fbe3a78f4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e8d654bf0795e75baaba58bbd9e2d4e040b5ed626b2c798cc2115531295870e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2017-07-21T09:59:13Z",
    "title_canon_sha256": "454f7e1990e2fcacd612adbfe987f4a0e5fa85f717f35baa866f0aaa646c6d0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.09413",
    "kind": "arxiv",
    "version": 1
  }
}