Pith Number

pith:SFX3WVVX

pith:2004:SFX3WVVXRC44UMZD7BRJRYNFYP

not attested not anchored not stored refs pending

The physical gravitational degrees of freedom

Brendan Z. Foster, Bryan Kelleher, Edward Anderson, Julian Barbour, Niall \'O Murchadha

arxiv:gr-qc/0407104 v2 · 2004-07-27 · 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{SFX3WVVXRC44UMZD7BRJRYNFYP}

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	2026-05-18T01:09:00.373817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

916fbb56b788b9ca3323f86298e1a5c3cebf8513e4c202088d074874abe9875a

Aliases

arxiv: gr-qc/0407104 · arxiv_version: gr-qc/0407104v2 · doi: 10.48550/arxiv.gr-qc/0407104 · pith_short_12: SFX3WVVXRC44 · pith_short_16: SFX3WVVXRC44UMZD · pith_short_8: SFX3WVVX

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/SFX3WVVXRC44UMZD7BRJRYNFYP \
  | 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: 916fbb56b788b9ca3323f86298e1a5c3cebf8513e4c202088d074874abe9875a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb57bbbff0f88e400be1c579953d3e8438336e6cece72921be3754690b863143",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-07-27T14:47:13Z",
    "title_canon_sha256": "8598114afd720e178b59e080f1247d862540e1f3b293bdff9f1dc9318ddf4556"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0407104",
    "kind": "arxiv",
    "version": 2
  }
}