Pith Number

pith:NB7HQUUI

pith:2012:NB7HQUUIYOSKDF2JRIRTE2FLNK

not attested not anchored not stored refs pending

Multipolar Solutions

Hernando Quevedo

arxiv:1201.1608 v1 · 2012-01-08 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NB7HQUUIYOSKDF2JRIRTE2FLNK}

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	2026-05-18T04:05:02.979248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

687e785288c3a4a197498a233268ab6aa4ea26820b53a3fbdaac899b0d2dace4

Aliases

arxiv: 1201.1608 · arxiv_version: 1201.1608v1 · doi: 10.48550/arxiv.1201.1608 · pith_short_12: NB7HQUUIYOSK · pith_short_16: NB7HQUUIYOSKDF2J · pith_short_8: NB7HQUUI

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/NB7HQUUIYOSKDF2JRIRTE2FLNK \
  | 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: 687e785288c3a4a197498a233268ab6aa4ea26820b53a3fbdaac899b0d2dace4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ecf791c3acd1379d74771a12a0f8a7f951908cc987599ca192b327af2d86f02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-01-08T05:37:06Z",
    "title_canon_sha256": "ef42ccc6a40b38eb59f06789c3a299c49eabca78176c47d4540a5b6e84ee04df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1608",
    "kind": "arxiv",
    "version": 1
  }
}