Pith Number

pith:GA6QRPFW

pith:2015:GA6QRPFW5S2MMXK4JNPVNHWSAQ

not attested not anchored not stored refs pending

Optical Deformations in Solar Glass Filters for High Precision Astrometry

Alexandre Humberto Andrei, Costantino Sigismondi, Eug\^enio Reis-Neto, Jucira Lousada Penna, S\'ergio Calderari Boscardin

arxiv:1507.03636 v1 · 2015-07-13 · astro-ph.IM · 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{GA6QRPFW5S2MMXK4JNPVNHWSAQ}

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	2026-05-18T01:36:57.759176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

303d08bcb6ecb4c65d5c4b5f569ed20405b2de4b17b26ec40cb2ed3dc61a97b2

Aliases

arxiv: 1507.03636 · arxiv_version: 1507.03636v1 · doi: 10.48550/arxiv.1507.03636 · pith_short_12: GA6QRPFW5S2M · pith_short_16: GA6QRPFW5S2MMXK4 · pith_short_8: GA6QRPFW

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/GA6QRPFW5S2MMXK4JNPVNHWSAQ \
  | 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: 303d08bcb6ecb4c65d5c4b5f569ed20405b2de4b17b26ec40cb2ed3dc61a97b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a743dd24f9f27d7e7dd7a5fb1926c045cb3190c2cfb85aa0c8a0d95c78557e9",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-07-13T22:18:26Z",
    "title_canon_sha256": "732ed1a8cb8d5f11e48fee8296b600e9502096dddbe32e6344ade4f5dac29e09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03636",
    "kind": "arxiv",
    "version": 1
  }
}