Pith Number

pith:PGU7RMQI

pith:2015:PGU7RMQIHJOFCKZBPQG6Q6NHOP

not attested not anchored not stored refs pending

Felix: A Topology based Framework for Visual Exploration of Cosmic Filaments

E G Patrick Bos, Nithin Shivshankar, Pratyush Pranav, Rien van de Weygaert, Steven Rieder, Vijay Natarajan

arxiv:1508.00737 v1 · 2015-08-04 · astro-ph.CO · math.AT · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PGU7RMQIHJOFCKZBPQG6Q6NHOP}

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	2026-07-05T08:27:38.758420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79a9f8b2083a5c512b217c0de879a773d14914a06bae83595f5cdc5572431cc6

Aliases

arxiv: 1508.00737 · arxiv_version: 1508.00737v1 · doi: 10.48550/arxiv.1508.00737 · pith_short_12: PGU7RMQIHJOF · pith_short_16: PGU7RMQIHJOFCKZB · pith_short_8: PGU7RMQI

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/PGU7RMQIHJOFCKZBPQG6Q6NHOP \
  | 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: 79a9f8b2083a5c512b217c0de879a773d14914a06bae83595f5cdc5572431cc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27a9fbf21b69a03f9fcddaee7effcb110e9cb2c59fca4d646a91cc95c061fb99",
    "cross_cats_sorted": [
      "math.AT",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-08-04T11:39:09Z",
    "title_canon_sha256": "922ffe182e53cbb3ba766a9df6eb46305b72aaa97551482670bde31d79f004bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00737",
    "kind": "arxiv",
    "version": 1
  }
}