Pith Number

pith:376HJHGD

pith:2025:376HJHGDYSLP3EK6LVMZQBS6L3

not attested not anchored not stored refs pending

The Nature of an Unidentified X-ray Source in the 7 Ms Chandra Deep Field-South Catalog

Bin Luo, Fan Zou, Quinn P. Sullivan, William N. Brandt, Zhibo Yu

arxiv:2508.03656 v1 · 2025-08-05 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{376HJHGDYSLP3EK6LVMZQBS6L3}

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	2026-07-05T11:49:00.697724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dffc749cc3c496fd915e5d5998065e5ee69f4574fb6b8afc993bf2f2425460a5

Aliases

arxiv: 2508.03656 · arxiv_version: 2508.03656v1 · doi: 10.48550/arxiv.2508.03656 · pith_short_12: 376HJHGDYSLP · pith_short_16: 376HJHGDYSLP3EK6 · pith_short_8: 376HJHGD

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/376HJHGDYSLP3EK6LVMZQBS6L3 \
  | 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: dffc749cc3c496fd915e5d5998065e5ee69f4574fb6b8afc993bf2f2425460a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d49df500162255e566a7a64a3884f2772a98b37b419149f66c6c2078d2343d82",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-08-05T17:08:56Z",
    "title_canon_sha256": "4bb2a0250b90b876e7dba9b9e5fd2e88d57fab047d43e99ab577a1bb89b1bcfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.03656",
    "kind": "arxiv",
    "version": 1
  }
}