Pith Number

pith:2PVDLU6I

pith:2018:2PVDLU6I4WIBHPFHKM4AFWPFKH

not attested not anchored not stored refs pending

Nautilus multi-grain model: Importance of cosmic-ray-induced desorption in determining the chemical abundances in the ISM

Valentine Wakelam, Wasim Iqbal

arxiv:1802.07979 v1 · 2018-02-22 · astro-ph.GA · astro-ph.IM · astro-ph.SR

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	2026-05-18T00:11:38.001254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3ea35d3c8e59013bca7533802d9e551eee24cb075f04962b149fcd25bf28be7

Aliases

arxiv: 1802.07979 · arxiv_version: 1802.07979v1 · doi: 10.48550/arxiv.1802.07979 · pith_short_12: 2PVDLU6I4WIB · pith_short_16: 2PVDLU6I4WIBHPFH · pith_short_8: 2PVDLU6I

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/2PVDLU6I4WIBHPFHKM4AFWPFKH \
  | 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: d3ea35d3c8e59013bca7533802d9e551eee24cb075f04962b149fcd25bf28be7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9b70aa00591a7571093247a1261379ef89058652bb35f3dfa96e0643bfa1056",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-22T11:01:25Z",
    "title_canon_sha256": "98f43e1f3d8d80dd928f0963aa463bd55a7affed71739d4f1413c923c4aaa906"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07979",
    "kind": "arxiv",
    "version": 1
  }
}