Pith Number

pith:LLWFY5NS

pith:2017:LLWFY5NSQT67OY5G4M7RCII3NG

not attested not anchored not stored refs pending

Black Hole Shadows and Invariant Phase Space Structures

Alexander Wittig, Jai Grover

arxiv:1705.07061 v1 · 2017-05-19 · gr-qc · nlin.CD

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

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	2026-05-18T00:38:52.310374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5aec5c75b284fdf763a6e33f11211b6997c2474c2a5bc7698f8da4d364233a80

Aliases

arxiv: 1705.07061 · arxiv_version: 1705.07061v1 · doi: 10.48550/arxiv.1705.07061 · pith_short_12: LLWFY5NSQT67 · pith_short_16: LLWFY5NSQT67OY5G · pith_short_8: LLWFY5NS

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/LLWFY5NSQT67OY5G4M7RCII3NG \
  | 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: 5aec5c75b284fdf763a6e33f11211b6997c2474c2a5bc7698f8da4d364233a80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26ee59d64ebc67e8866ff165159dbd72790b2bb7a4981f744ae90dcc1a438559",
    "cross_cats_sorted": [
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-05-19T15:46:28Z",
    "title_canon_sha256": "75b5ce5b1bcdd06db5a794cd5a375e66f093b0127af702cd1383cca67320a202"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.07061",
    "kind": "arxiv",
    "version": 1
  }
}