Pith Number

pith:YRUHYGWM

pith:2010:YRUHYGWMR7YC44IKMPROIES4FO

not attested not anchored not stored refs pending

Relaxation-based coarsening and multiscale graph organization

Achi Brandt, Dorit Ron, Ilya Safro

arxiv:1004.1220 v1 · 2010-04-08 · cs.DS · cs.NA · 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{YRUHYGWMR7YC44IKMPROIES4FO}

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	2026-06-03T23:06:35.235826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4687c1acc8ff02e710a63e2e4125c2ba214a4e301ae4937c08c03fca5b9cd2c

Aliases

arxiv: 1004.1220 · arxiv_version: 1004.1220v1 · doi: 10.48550/arxiv.1004.1220 · pith_short_12: YRUHYGWMR7YC · pith_short_16: YRUHYGWMR7YC44IK · pith_short_8: YRUHYGWM

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/YRUHYGWMR7YC44IKMPROIES4FO \
  | 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: c4687c1acc8ff02e710a63e2e4125c2ba214a4e301ae4937c08c03fca5b9cd2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bddc3fc5f7bb21c4c81da4b10ed05c3b0702e55180ef219ada5828f59b662207",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-04-08T02:05:02Z",
    "title_canon_sha256": "462c6828ded78cecd9bb564ea11c533bd504da17082180dbcee48aa12dcfe77a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1220",
    "kind": "arxiv",
    "version": 1
  }
}