Pith Number

pith:HRK6OVPU

pith:2019:HRK6OVPU4EEHNWCB6SPBDGCNAW

not attested not anchored not stored refs pending

Superconvergence of ultra-weak discontinuous Galerkin methods for the linear Schr\"odinger equation in one dimension

Anqi Chen, Mengping Zhang, Yingda Cheng, Yong Liu

arxiv:1905.08161 v1 · 2019-05-20 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HRK6OVPU4EEHNWCB6SPBDGCNAW}

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	2026-05-17T23:45:47.409955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c55e755f4e10876d841f49e11984d05b4bfdfb1b4876fc7f20fff750b289d8a

Aliases

arxiv: 1905.08161 · arxiv_version: 1905.08161v1 · doi: 10.48550/arxiv.1905.08161 · pith_short_12: HRK6OVPU4EEH · pith_short_16: HRK6OVPU4EEHNWCB · pith_short_8: HRK6OVPU

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/HRK6OVPU4EEHNWCB6SPBDGCNAW \
  | 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: 3c55e755f4e10876d841f49e11984d05b4bfdfb1b4876fc7f20fff750b289d8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbe3c980c498c861e5894c911863de11d949c08946ea905bbbc14895b7df81a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-05-20T15:08:55Z",
    "title_canon_sha256": "f37335f7ca577e14c1b1dcfd3131e447468b288415f20cdce0fa5b48d48ed482"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08161",
    "kind": "arxiv",
    "version": 1
  }
}