Aikakone (Finnish for time machine) is a Finnish pop music group active from 1995 to 1998 and shortly in 2001 and 2003 as Aika. In 2003, they changed their name back to Aikakone and have since been ac
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 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 0x00abff38993bdde05e2f19756fdd4ac7469ea571a309c2b05c5f7c1309237fe6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c31c3663-5ac3-49fc-a8bf-f7f35f68a9eb.json and https://artists.proofprofile.net/proofs/artist/c31c3663-5ac3-49fc-a8bf-f7f35f68a9eb.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 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 0x50dbdb672b308d732cb44d52799f92e907e7c8354d88f8365d77351310be9243. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/FIBAR9500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae0cb311f25e2449020342f7f7d406e771a968389bf142cd458e060dab87b29. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FIBAR9500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59126e435249150224ae4e37e1318ca24c5de2fc5fc960f8bb042cba57fb31f5. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FIBAR9500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629e536b0571821a9930aefdb8c8dc180dcae797217a3253799a4bd9d8b5a1ad. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/FIBAR9500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2769c3a7b817bc5f096766d93247704b4d39ec919190462a8e810e5e46830ab5. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FIBAR9500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c2ffbfb123bb3971319b0f49206aa47c5ac873d0c60931834ceb4acb33bc1a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FIBAR9600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7d83e05f557605222abb657958cbd86410c320d51f39e535cea417244decd9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FIBAR9600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd613cabd13ebc20055ca5f597141071c0c3846b78e7f5804fa05f59e9937f68c. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FIBAR9800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7d2be95f41023d70e0b3bb6d97cfba89a05ccf995ac38cf52288c3faf7bab6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FIBAR9800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae0cb311f25e2449020342f7f7d406e771a968389bf142cd458e060dab87b29. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FIBAR9500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52143f1f1ece83415a0425f7771acb5a87539904e81d3c5c48d6146876e1e65. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/FIBAR9500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e1e1621af8e50fe2e164c018a640a48ccbc93d48a650717ce06138c1df068b. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/FIBAR9600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd1485dc5b45fad1f930c7d9c1ec679922a1710de7b118c4ec7e2b9481e5890. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FIBAR9600094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd613cabd13ebc20055ca5f597141071c0c3846b78e7f5804fa05f59e9937f68c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FIBAR9800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52143f1f1ece83415a0425f7771acb5a87539904e81d3c5c48d6146876e1e65. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FIBAR9500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0986753975fb9e6a78cfad3a86d7f9f9fa57d228a0d7e038eaf89b95f1e6df. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FIHC82300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb7d28474f574f4568949e06afa2b39ccc9b33a96231a176dcff740e8341f50. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FIBAR1900198.