Pith Number

pith:PZ3443GQ

pith:2016:PZ3443GQWTLUJEDD2VSRWMWAGV

not attested not anchored not stored refs pending

Using separable non-negative matrix factorization techniques for the analysis of time-resolved Raman spectra

J\"org Liesen, Peter Hildebrandt, Robert Luce, Uwe Kuhlmann

arxiv:1602.01241 v2 · 2016-02-03 · 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{PZ3443GQWTLUJEDD2VSRWMWAGV}

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	2026-05-18T00:35:14.106323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e77ce6cd0b4d7449063d5651b32c0355c7d2e690ba3df39109d33bc1a676c29

Aliases

arxiv: 1602.01241 · arxiv_version: 1602.01241v2 · doi: 10.48550/arxiv.1602.01241 · pith_short_12: PZ3443GQWTLU · pith_short_16: PZ3443GQWTLUJEDD · pith_short_8: PZ3443GQ

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/PZ3443GQWTLUJEDD2VSRWMWAGV \
  | 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: 7e77ce6cd0b4d7449063d5651b32c0355c7d2e690ba3df39109d33bc1a676c29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "749f738c1f9bad848ee7cf3750eb016909af6400a74d78d2a424d822517e36d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-02-03T09:56:30Z",
    "title_canon_sha256": "adaa6aa24411c44f04e553db82963cdc3e58787275298dd1edf0acab9e62dbe1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.01241",
    "kind": "arxiv",
    "version": 2
  }
}