Pith Number

pith:DDTRERVP

pith:2019:DDTRERVPJUCCMIUECSQFML7O3A

not attested not anchored not stored refs pending

Progressive Refinement Imaging

Andreas Kolb, Markus Kluge, Tim Weyrich

arxiv:1907.04099 v2 · 2019-07-09 · 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{DDTRERVPJUCCMIUECSQFML7O3A}

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	2026-07-05T00:03:16.322365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18e71246af4d0426228414a0562feed800d917bea94708f7e4e95cd7701aa7c8

Aliases

arxiv: 1907.04099 · arxiv_version: 1907.04099v2 · doi: 10.48550/arxiv.1907.04099 · pith_short_12: DDTRERVPJUCC · pith_short_16: DDTRERVPJUCCMIUE · pith_short_8: DDTRERVP

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/DDTRERVPJUCCMIUECSQFML7O3A \
  | 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: 18e71246af4d0426228414a0562feed800d917bea94708f7e4e95cd7701aa7c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59c90473d64cffcb0636a677ef13428045989c7d9512563034cf11efff365da3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2019-07-09T11:49:15Z",
    "title_canon_sha256": "c2c92fb5a2be530e1eeb80c2f070443559905af73047586290ebb7f2eaa91417"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04099",
    "kind": "arxiv",
    "version": 2
  }
}