Pith Number

pith:HBTCFIH2

pith:2024:HBTCFIH2CJ4UBQBSQK3J2BKLH2

not attested not anchored not stored refs pending

Numerical Recovery of the Diffusion Coefficient in Diffusion Equations from Terminal Measurement

Bangti Jin, Qimeng Quan, Xiliang Lu, Zhi Zhou

arxiv:2405.10708 v1 · 2024-05-17 · 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{HBTCFIH2CJ4UBQBSQK3J2BKLH2}

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	2026-07-05T08:20:16.053385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

386622a0fa127940c03282b69d054b3e8b35b081bc111159015f6ad5252c535d

Aliases

arxiv: 2405.10708 · arxiv_version: 2405.10708v1 · doi: 10.48550/arxiv.2405.10708 · pith_short_12: HBTCFIH2CJ4U · pith_short_16: HBTCFIH2CJ4UBQBS · pith_short_8: HBTCFIH2

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/HBTCFIH2CJ4UBQBSQK3J2BKLH2 \
  | 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: 386622a0fa127940c03282b69d054b3e8b35b081bc111159015f6ad5252c535d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b21c6fe5e3a6be5261c8833ac5e5c73c5b1faa95c6933bbbbeba0ce89507ed62",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-05-17T11:29:25Z",
    "title_canon_sha256": "57efe8b633785cd4484259cac6fb6a21c5eaabd90685eb952028bed3e35f9d30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.10708",
    "kind": "arxiv",
    "version": 1
  }
}