Pith Number

pith:VXPW6RCK

pith:2016:VXPW6RCKDX7ZEPTTHVJQMPMP6B

not attested not anchored not stored refs pending

Space-Efficient Hidden Surface Removal

Frank Kammer, Maarten L\"offler, Rodrigo I. Silveira

arxiv:1611.06915 v2 · 2016-11-21 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VXPW6RCKDX7ZEPTTHVJQMPMP6B}

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	2026-05-18T00:53:11.968534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

addf6f444a1dff923e733d53063d8ff06057ba9cf9564bd44e883f7dcde31c44

Aliases

arxiv: 1611.06915 · arxiv_version: 1611.06915v2 · doi: 10.48550/arxiv.1611.06915 · pith_short_12: VXPW6RCKDX7Z · pith_short_16: VXPW6RCKDX7ZEPTT · pith_short_8: VXPW6RCK

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/VXPW6RCKDX7ZEPTTHVJQMPMP6B \
  | 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: addf6f444a1dff923e733d53063d8ff06057ba9cf9564bd44e883f7dcde31c44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8d2d71a094bcc750592ccb3d4727da68c8f80635ede162bfda03574336d9da4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-11-21T17:44:15Z",
    "title_canon_sha256": "b7b2f90b06128dcf7650cb765c49999a01d372c9b00c766985d222e14faeefe2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.06915",
    "kind": "arxiv",
    "version": 2
  }
}