Pith Number

pith:H4WJCLWS

pith:2017:H4WJCLWSYUOACHY7ZWIT75YVR6

not attested not anchored not stored refs pending

Boundary Observer for Space and Time Dependent Reaction-Advection-Diffusion Equations

Agus Hasan

arxiv:1709.05572 v1 · 2017-09-16 · 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{H4WJCLWSYUOACHY7ZWIT75YVR6}

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	2026-05-18T00:35:00.272035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f2c912ed2c51c011f1fcd913ff7158f9bc52906b95234ab911923da6e2b87d3

Aliases

arxiv: 1709.05572 · arxiv_version: 1709.05572v1 · doi: 10.48550/arxiv.1709.05572 · pith_short_12: H4WJCLWSYUOA · pith_short_16: H4WJCLWSYUOACHY7 · pith_short_8: H4WJCLWS

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/H4WJCLWSYUOACHY7ZWIT75YVR6 \
  | 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: 3f2c912ed2c51c011f1fcd913ff7158f9bc52906b95234ab911923da6e2b87d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a523b934b1de9f2bc53d0fd9ffe54cacaa0b050849b2fb33953616b5c6fabcd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-09-16T22:15:50Z",
    "title_canon_sha256": "fd44c31a0931efbdaf5df1a3ee273f4b87771bab65542dc015294435f5b0ed09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05572",
    "kind": "arxiv",
    "version": 1
  }
}