Pith Number

pith:DHPNHTLY

pith:2012:DHPNHTLYO6XSPCSYMOPGPG7JZU

not attested not anchored not stored refs pending

Chain Rotations: a New Look at Tree Distance

Fabrizio Luccio, Linda Pagli

arxiv:1204.5929 v1 · 2012-04-26 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DHPNHTLYO6XSPCSYMOPGPG7JZU}

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	2026-05-18T03:56:59.014941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19ded3cd7877af278a58639e679be9cd0c7a1944a554e320b5cc718c4523a9cd

Aliases

arxiv: 1204.5929 · arxiv_version: 1204.5929v1 · doi: 10.48550/arxiv.1204.5929 · pith_short_12: DHPNHTLYO6XS · pith_short_16: DHPNHTLYO6XSPCSY · pith_short_8: DHPNHTLY

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/DHPNHTLYO6XSPCSYMOPGPG7JZU \
  | 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: 19ded3cd7877af278a58639e679be9cd0c7a1944a554e320b5cc718c4523a9cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "033b47051153799b75ef1392c035a4a2101e8e58d787e9f4cab4fbb017470698",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-04-26T14:05:22Z",
    "title_canon_sha256": "2383c4af94f6044cc845dccad254941cb09356dcfa23cf072d97298fc9b4efc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5929",
    "kind": "arxiv",
    "version": 1
  }
}