Albert Edward Frost CBE (7 March 1914 – 13 August 2010) was a British businessman who was an influential and respected figure in the corporate world as finance director of Imperial Chemical Industries
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8968914ae4c520bb70e7d3f63f9e58d0c3e78adea8df9b73590de5deefb78178. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a5ffba4-ed4a-4fc3-b7c7-a31223e18b2e.json and https://artists.proofprofile.net/proofs/artist/4a5ffba4-ed4a-4fc3-b7c7-a31223e18b2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ece8bdbcc3d3477537b75c09a2da250947d239ea10354c507c921901009baa3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC012100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01552a646ce3e676002a0afe6231ebf886184b7ae877d3469a33d9b3a90562eb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC012100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de0702b5be576cfd94e3e0ae9f4d410a6e3db86e4a072e2c52294eb58ca40d9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC012100405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62636dbacb6556e44fe663998bda4ec1ceba18d9cd95c1534a0d52a728933e8. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC012100400.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cd458f810d0e0d29b7ba8c488662b4277e0bfc5ffd6e3fd104168e93940ef3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC012100403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0218c3cdbfc1c52c2388c2c3e0c85bcd3022f228799fac63c40b1dc92cb84699. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42059026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa12347087714f70ec6136793205dd43c5fb511bae2471834c71cc517e324b9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42059027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008cf014631ff8d54a203181f986bd1133da5cfb415da15e5a39375913c06583. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42059025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347b212a8415c55f7c88631569606523bf465e72d2dae11f5143a09764f4a7c7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42059029.
Anton En Vrinne En Die Bushrockband (Live in Die Staatsteater)
Guitar Overture (Live in Die Staatsteater)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852c247996390773ca6b02d7447c8533ab37ac9fb455283a40c0013ec7c581f5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC031911542.
Keurspel:- Pampoene Oppie Dak / Byeboerwa / Kalbassies (Live in Die Staatsteater)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85384c777a239d3430cfaa410e4a15093ad6e5ece27b34ee25a3f952f126f657. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC031911554.
'n Brief Vir Simone (Live in Die Staatsteater)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8132a6650263de68ef3a071516123dc01bf9ed3bdc1b4dac0efd003863aaa5. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC031911557.
Musica Do Cantinho (feat. Derek Gripper)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5081b9f1d3a7454479466b85fdcaedf17d752915df6bb358700b5e893bc86c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAL861400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4ac62f300b493a2af9d4e0180159a3a77788e93f2845bbfe1419006ff1c4b1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAL861400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153b5e6d0723e979becf09da155095833ab1d8d0a929087df97d5164dc2f92eb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAL861400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce8a17dc95f57ffff96098714787e730c71696cd884bf22d6292491fc506214. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1313656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5699a33fd04c819c2f15a58c2ff71e393c2cd69a3f0a818e6520bebf47cde6b3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1313659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc85f1a3ea98ad55fac605f26bd9974b7279fda96a387a7f46f4b9e6030f8bf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1313660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc067ff1f4b163b85985b35118dbc5d3772bc9c0a39a9ff15bdb4dabe15f79e23. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAO862100102.
The Very Silence of Waiting in This Place