Pith Number

pith:L2SKQZFA

pith:2018:L2SKQZFA322UDEWIT26VHIH5QY

not attested not anchored not stored refs pending

Identifiability of Diffusion Coefficients for Source Terms of Non-Uniform Sign

Markus Bachmayr, Van Kien Nguyen

arxiv:1809.05178 v2 · 2018-09-13 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L2SKQZFA322UDEWIT26VHIH5QY}

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	2026-05-18T00:01:14.639575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ea4a864a0deb54192c89ebd53a0fd861ecb10b1f483208f7e865de666a7d9f4

Aliases

arxiv: 1809.05178 · arxiv_version: 1809.05178v2 · doi: 10.48550/arxiv.1809.05178 · pith_short_12: L2SKQZFA322U · pith_short_16: L2SKQZFA322UDEWI · pith_short_8: L2SKQZFA

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/L2SKQZFA322UDEWIT26VHIH5QY \
  | 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: 5ea4a864a0deb54192c89ebd53a0fd861ecb10b1f483208f7e865de666a7d9f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce9a42969aa15882fbc4bfb3ff687487cbb2c4ebe330f7352086b265615669ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-09-13T21:08:00Z",
    "title_canon_sha256": "546a41c3d69f235747ec2600a0af160e79af50be4edd5b807ccab64fa29914f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.05178",
    "kind": "arxiv",
    "version": 2
  }
}