Pith Number

pith:DPODGPQR

pith:2006:DPODGPQRS4BDKX3YAPC7YS5EI7

not attested not anchored not stored refs pending

Constraining Torsion with Gravity Probe B

Alan Guth (MIT), Max Tegmark (MIT), Serkan Cabi (MIT), Yi Mao (MIT)

arxiv:gr-qc/0608121 v4 · 2006-08-29 · gr-qc · astro-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DPODGPQRS4BDKX3YAPC7YS5EI7}

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.

Cited by

1 paper in Pith

`Translation invariant' black hole: autoparallels and complete integrability

Receipt and verification

First computed	2026-07-04T15:28:43.884167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bdc333e119702355f7803c5fc4ba447c09f45367fe874a681c53e92e9fae4aa

Aliases

arxiv: gr-qc/0608121 · arxiv_version: gr-qc/0608121v4 · doi: 10.48550/arxiv.gr-qc/0608121 · pith_short_12: DPODGPQRS4BD · pith_short_16: DPODGPQRS4BDKX3Y · pith_short_8: DPODGPQR

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/DPODGPQRS4BDKX3YAPC7YS5EI7 \
  | 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: 1bdc333e119702355f7803c5fc4ba447c09f45367fe874a681c53e92e9fae4aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "843bb309341e6f38700ead2fa5e54ee04dd421feb05081ca361bc88602487c8c",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2006-08-29T19:50:38Z",
    "title_canon_sha256": "4e0c378f58be469332f2ddcd56c345d72fe955d9e9160d9c7249914440b3ae06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0608121",
    "kind": "arxiv",
    "version": 4
  }
}