Pith Number

pith:J2UUYGDF

pith:1998:J2UUYGDFYL3PHCU3PQFI4ZDIGR

not attested not anchored not stored refs pending

Quantized Space-Time and Time's Arrow

B.G. Sidharth

arxiv:quant-ph/9811077 v1 · 1998-11-27 · quant-ph · 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{J2UUYGDFYL3PHCU3PQFI4ZDIGR}

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	2026-05-18T01:37:52.687408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ea94c1865c2f6f38a9b7c0a8e64683451efb0da2fa925d6b9474efb6b66725a

Aliases

arxiv: quant-ph/9811077 · arxiv_version: quant-ph/9811077v1 · doi: 10.48550/arxiv.quant-ph/9811077 · pith_short_12: J2UUYGDFYL3P · pith_short_16: J2UUYGDFYL3PHCU3 · pith_short_8: J2UUYGDF

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/J2UUYGDFYL3PHCU3PQFI4ZDIGR \
  | 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: 4ea94c1865c2f6f38a9b7c0a8e64683451efb0da2fa925d6b9474efb6b66725a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcdc4039cce03d15f0316347aaa48a7dda2ae7f019c116f989e1044e69dbb442",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-11-27T11:56:51Z",
    "title_canon_sha256": "ad433f0383e6d01e7d378889d3db26422392f25ff0f86651d80b5ac747fc09f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9811077",
    "kind": "arxiv",
    "version": 1
  }
}