Pith Number

pith:S75XGLFD

pith:2015:S75XGLFD2JED4LSIOP2B6IHR5F

not attested not anchored not stored refs pending

On Flattenability of Graphs

Joel Willoughby, Meera Sitharam

arxiv:1503.01489 v2 · 2015-03-04 · 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{S75XGLFD2JED4LSIOP2B6IHR5F}

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	2026-05-18T01:37:47.259125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97fb732ca3d2483e2e4873f41f20f1e9400519cfd76d654c9a024c1fc3e89270

Aliases

arxiv: 1503.01489 · arxiv_version: 1503.01489v2 · doi: 10.48550/arxiv.1503.01489 · pith_short_12: S75XGLFD2JED · pith_short_16: S75XGLFD2JED4LSI · pith_short_8: S75XGLFD

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/S75XGLFD2JED4LSIOP2B6IHR5F \
  | 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: 97fb732ca3d2483e2e4873f41f20f1e9400519cfd76d654c9a024c1fc3e89270

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98f3b77e5f4ddf68933811abe4b7e60e162368b52eb9e6cbf4543e7656fb8677",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-03-04T22:41:05Z",
    "title_canon_sha256": "160791505b0b7e2fb6ebc4b7f9f38e91615686216e2fb9286854442726a75dad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01489",
    "kind": "arxiv",
    "version": 2
  }
}