| Role | Log entries | E-sign / review | Config regime | Approve CAPA | Release samples | Audit replay |
|---|---|---|---|---|---|---|
| Lab Technician / Operator | ✓ | — | — | — | — | — |
| QA / Compliance Officer | ✓ | ✓ | ✓ | ✓ | — | ✓ |
| Lab Manager / Biobank Director | ✓ | ✓ | — | ✓ | ✓ | ✓ |
| Auditor / Read-only Inspector | — | — | — | — | — | ✓ |
| Regime | E-signature | Audit trail | Second review | Status |
|---|---|---|---|---|
| 21 CFR Part 11 | Required | Immutable | On signed steps | On |
| EU Annex 11 | Required | Immutable | On signed steps | On |
| NABL / ISO 15189 | Required | Immutable | Configurable | On |
| ISO 20387 (biobank) | Required | Immutable | Configurable | Available |
| CAP / NABH | Required | Immutable | On release | Available |
| ICMR · ART Act 2021 | Required | Immutable | On distribution | Available |
| Timestamp | Event | Asset / location | By | Signed |
|---|---|---|---|---|
| 02 Feb 26 · 09:14 | Collected & accessioned | Reception | A. Pillai | ✓ |
| 02 Feb 26 · 11:40 | Stored → Box 14, Pos A3 | FRZ-08 · Shelf 2 · Rack 5 | A. Pillai | ✓ |
| 14 Mar 26 · 03:22 | Excursion −68 °C for 41 min | FRZ-08 | System | — |
| 14 Mar 26 · 09:05 | Impact assessed · no compromise | FRZ-08 | R. Menon (QA) | ✓ |
| 12 Apr 26 · 16:18 | Retrieved for aliquoting | FRZ-08 → BSC-02 | S. Nair | ✓ |
| 12 Apr 26 · 16:51 | Returned → Box 14, Pos A3 | FRZ-08 | S. Nair | ✓ |
| Step | Witness A | Witness B | Media / batch | Expiry |
|---|---|---|---|---|
| Insemination (ICSI) | S. Nair ✓ | R. Iyer ✓ | Fert · LOT G-2207 | FEFO ok |
| Day 3 check | S. Nair ✓ | R. Iyer ✓ | Cleavage · LOT C-1183 | FEFO ok |
| Day 5 vitrification | S. Nair ✓ | R. Iyer ✓ | Vitri · LOT V-0455 | 7 d |
| Cryo-store · Tank 2 / Cane 8 | System ✓ | R. Iyer ✓ | — | — |
| Time | User | Action | Reference |
|---|---|---|---|
| 09:14 | A. Pillai | Logged daily temp −79 °C | FRZ-08 |
| 09:48 | R. Menon | Configured regime → ISO 20387 on | Site settings |
| 10:05 | System | Opened deviation (excursion) | DEV-2026-038 |
| 10:22 | R. Menon | E-signed impact assessment | DEV-2026-038 |
| 11:30 | S. Nair | Witnessed Day 5 vitrification | ART-1187 |
| 12:02 | P. Das | Requested sample release | BBK-2210-B1 |
| 12:09 | System | Blocked release · consent withdrawn | BBK-2210-B1 |
| 14:41 | Auditor (RO) | Replayed chain of custody | BBK-2241-A3 |
By signing below, the undersigned confirm that the Custodyn platform scope, roles, compliance regime and pilot approach described in this walkthrough are an accurate representation of the engagement, and authorise the design and pilot phases to begin.