Pith Number

pith:OBZ6TLMP

pith:2015:OBZ6TLMPZEYDN3L6JUKIAB3WA2

not attested not anchored not stored refs pending

Natural Data Storage: A Review on sending Information from now to then via Nature

Dixita Limbachiya, Manish K. Gupta

arxiv:1505.04890 v1 · 2015-05-19 · cs.IT · cs.ET · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OBZ6TLMPZEYDN3L6JUKIAB3WA2}

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	2026-05-18T02:05:22.845929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7073e9ad8fc93036ed7e4d14800776068e81fec0453737b963876dadc7d5e662

Aliases

arxiv: 1505.04890 · arxiv_version: 1505.04890v1 · doi: 10.48550/arxiv.1505.04890 · pith_short_12: OBZ6TLMPZEYD · pith_short_16: OBZ6TLMPZEYDN3L6 · pith_short_8: OBZ6TLMP

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/OBZ6TLMPZEYDN3L6JUKIAB3WA2 \
  | 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: 7073e9ad8fc93036ed7e4d14800776068e81fec0453737b963876dadc7d5e662

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "563731bbc513d90cb2cdc925b2e0f3c4a279b5fd1972779053d43eddb174ed25",
    "cross_cats_sorted": [
      "cs.ET",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-05-19T07:06:10Z",
    "title_canon_sha256": "2d35a2c227e133fe91c5ab73b0fc49ce0eac04f4717be79ffd48205b4b04c54d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04890",
    "kind": "arxiv",
    "version": 1
  }
}