Pith Number

pith:TYJQWID3

pith:2019:TYJQWID3JU3R5WI7ZBXAXUA64I

not attested not anchored not stored refs pending

A fourth-order compact solver for fractional-in-time fourth-order diffusion equations

Bingquan Ji, Hong-lin Liao, Jialing Zhong, Luming Zhang

arxiv:1907.01708 v1 · 2019-07-03 · math.NA · cs.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{TYJQWID3JU3R5WI7ZBXAXUA64I}

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	2026-05-17T23:41:35.396639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e130b207b4d371ed91fc86e0bd01ee217a2fac072e01297bd6e38a21a29b91d

Aliases

arxiv: 1907.01708 · arxiv_version: 1907.01708v1 · doi: 10.48550/arxiv.1907.01708 · pith_short_12: TYJQWID3JU3R · pith_short_16: TYJQWID3JU3R5WI7 · pith_short_8: TYJQWID3

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/TYJQWID3JU3R5WI7ZBXAXUA64I \
  | 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: 9e130b207b4d371ed91fc86e0bd01ee217a2fac072e01297bd6e38a21a29b91d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8ed2365184b6b71e42bdf7895e0599b9d2c21d2f82ac24034224c6b712ad2da",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-07-03T02:26:27Z",
    "title_canon_sha256": "a6a54c7e87b7b27d4530a67c3eddb588953d0dca00227c2d460e3bb960a4bbad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01708",
    "kind": "arxiv",
    "version": 1
  }
}