Pith Number

pith:R4DBYWEV

pith:2021:R4DBYWEVQUDRDPPVSK5XZWWMGQ

not attested not anchored not stored refs pending

String Theory and The Arrow of Time

Nissan Itzhaki

arxiv:2101.10142 v1 · 2021-01-25 · hep-th · astro-ph.CO · 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{R4DBYWEVQUDRDPPVSK5XZWWMGQ}

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

Instant Cosmology

Receipt and verification

First computed	2026-07-05T02:29:43.050877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f061c5895850711bdf592bb7cdacc3439be5afba34eb9143179cbb11f82b4de

Aliases

arxiv: 2101.10142 · arxiv_version: 2101.10142v1 · doi: 10.48550/arxiv.2101.10142 · pith_short_12: R4DBYWEVQUDR · pith_short_16: R4DBYWEVQUDRDPPV · pith_short_8: R4DBYWEV

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/R4DBYWEVQUDRDPPVSK5XZWWMGQ \
  | 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: 8f061c5895850711bdf592bb7cdacc3439be5afba34eb9143179cbb11f82b4de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e51cf9b29b19cfb8fc21825876b62f113978a8223d23dc225096c7ace93acdb4",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2021-01-25T14:47:41Z",
    "title_canon_sha256": "54088c7215cb97adb62ddec849b7c403a617fc8b726bc3dd27bdae517e83e883"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.10142",
    "kind": "arxiv",
    "version": 1
  }
}