Pith Number

pith:HVXN4SNF

pith:2021:HVXN4SNFL5V4X27PVJFTEIC2BE

not attested not anchored not stored refs pending

Time delay estimation in unresolved lensed quasars

A. Domi, D. Ricci, G. Bracco, G. Vernardos, L. Biggio, L. Paganin, S. Tosi

arxiv:2110.01012 v2 · 2021-10-03 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HVXN4SNFL5V4X27PVJFTEIC2BE}

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	2026-07-05T04:45:12.298973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d6ede49a55f6bcbebefaa4b32205a092c0f0489a2eb0fa515d70dfa0aa0c3bf

Aliases

arxiv: 2110.01012 · arxiv_version: 2110.01012v2 · doi: 10.48550/arxiv.2110.01012 · pith_short_12: HVXN4SNFL5V4 · pith_short_16: HVXN4SNFL5V4X27P · pith_short_8: HVXN4SNF

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/HVXN4SNFL5V4X27PVJFTEIC2BE \
  | 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: 3d6ede49a55f6bcbebefaa4b32205a092c0f0489a2eb0fa515d70dfa0aa0c3bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0255e98a0357abb7f4fab2c972b4d2be3e6c8c4453eca17f9b4fdc8c71e71a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-10-03T14:29:54Z",
    "title_canon_sha256": "9cce89f9b9d4168e6184acf99677c63ed0b7dbfe06032961708eb81e7a673fee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.01012",
    "kind": "arxiv",
    "version": 2
  }
}