Pith Number

pith:EFJOFSPR

pith:2019:EFJOFSPR3OCJ6IRARQWLO6QUHS

not attested not anchored not stored refs pending

Spectral Visualization Sharpening

Chris Johnson, Daniel Weiskopf, Liang Zhou, Rudolf Netzel

arxiv:1907.10208 v1 · 2019-07-24 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EFJOFSPR3OCJ6IRARQWLO6QUHS}

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	2026-05-17T23:39:38.654151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2152e2c9f1db849f22208c2cb77a143cad919536f173c8dd25ec36acbbd4893e

Aliases

arxiv: 1907.10208 · arxiv_version: 1907.10208v1 · doi: 10.48550/arxiv.1907.10208 · pith_short_12: EFJOFSPR3OCJ · pith_short_16: EFJOFSPR3OCJ6IRA · pith_short_8: EFJOFSPR

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/EFJOFSPR3OCJ6IRARQWLO6QUHS \
  | 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: 2152e2c9f1db849f22208c2cb77a143cad919536f173c8dd25ec36acbbd4893e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2c10f40db7cdf8b9829fd8d3d4676e6f63795389afda48aa204ea2bfcd805d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2019-07-24T02:24:57Z",
    "title_canon_sha256": "a348a577db8e5448e1580ccb4e973561aac5b72871fab434cc97f927fd14a18c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10208",
    "kind": "arxiv",
    "version": 1
  }
}