Pith Number

pith:FB7E5WAN

pith:2012:FB7E5WANA6MJ7G63MRNFF3IU6Q

not attested not anchored not stored refs pending

Theoretical study of the line profiles of the hydrogen perturbed by collisions with protons

M. G. Santos, S. O. Kepler

arxiv:1204.4769 v1 · 2012-04-21 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FB7E5WANA6MJ7G63MRNFF3IU6Q}

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	2026-05-18T01:57:47.868200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

287e4ed80d07989f9bdb645a52ed14f403f9acad41f05a2c042e265fa39d41d5

Aliases

arxiv: 1204.4769 · arxiv_version: 1204.4769v1 · doi: 10.48550/arxiv.1204.4769 · pith_short_12: FB7E5WANA6MJ · pith_short_16: FB7E5WANA6MJ7G63 · pith_short_8: FB7E5WAN

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/FB7E5WANA6MJ7G63MRNFF3IU6Q \
  | 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: 287e4ed80d07989f9bdb645a52ed14f403f9acad41f05a2c042e265fa39d41d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceba5146d69aa5b3daf9a0985fb78fb03e5c12199659fd63d1276ddfb207bdc6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-04-21T03:20:51Z",
    "title_canon_sha256": "f86c916041e3a3254b6d8920b49f9801d8acda7845358d91e784514e611bd127"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4769",
    "kind": "arxiv",
    "version": 1
  }
}