thumb|Mikko Kuustonen in 2010. Ari-Mikko Kuustonen (born 4 March 1960) is a Finnish singer-songwriter and television personality. Kuustonen was born in Leppävirta. In 1998 Kuustonen was the first Fin
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 0x80aacde92d9b3888b67ae2e62e8ea834e94dd9962bc0a380c25988097ba7297a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9b768e0-3735-472a-b76d-e4d7b723e6e1.json and https://artists.proofprofile.net/proofs/artist/a9b768e0-3735-472a-b76d-e4d7b723e6e1.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 0x7970773db5bb787f171c865ee48080a1e7ad44d72414c2758a4ac2359da09ab5. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FISMC9100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a1f18251fccf348f119cd434edd6855c7450e51abe3229acf7915738147e25. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FISMC9100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa6475aad3605f5266f839a6aa827ffa6362b6fe2e2dd638aa3fbd990e74a84. 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/FISMC9100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb649075242869bd3aef8f1de33598dfc1900b6b9413b54b8513463bc3c9aa9. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:05:49Z), 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/FISMC9302304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50284a9db20ec649f7efd3dadff95bf9949f668cf682c276f02571a32ca92d5a. 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/FISMC9400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab81b4d62311673cc9c46502ac29617e96081cc8a38fb92d907a873404f9162. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FISMC9500171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab81b4d62311673cc9c46502ac29617e96081cc8a38fb92d907a873404f9162. 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/FISMC9500171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006f09ea665d57d9ebe11df29a1f9cdcc06e34e8de7e22fbc2af1d7577ad9f55. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIECA0200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5487aa5ee045653186c5e5ce501de845a7a9929e4cdd22a36e8800aebb84ff07. 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/FISMC9500185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cba22c9c4337f5b521a3e6e96afd70b2cbc9445dbe6cdf211a19be2b04efb7. 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/FISMC9400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50284a9db20ec649f7efd3dadff95bf9949f668cf682c276f02571a32ca92d5a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FISMC9400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb614c6ae1b83146af4638c799b7eb6c54b45edcd063a1443403e2c587170340. 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/FISMC9900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b8e2dfdc64745dcccbe3cf851cf59ea5d2d11ae21d22858d69455b3f599851. 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/FISMC0000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb4f7a5ea774cd8a4654f7bba7e1ee61dc70f32119e9e94ad7cd6e13757ca48. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FISME9302002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfd54790d626f17a0664d539e11f562586205f3205c1ee83b94407c8162ec84. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FIECA0300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ab79c675735d913f5512f6d0e4dd861ba4d0f2f317831bb4e2f27658d8cfcb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FISMC9800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9796b727cfd9194faac88d4aa2fd562b75441168ee454afb47d866fa561a9ee. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FIBAR9800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062a50cca305844fcb3c9cb77833efc9f88bab66c82f39b2d5c4137d2eb07c7f. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:55:12Z), 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/FISME9200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db4d3b8a143b2c62d975cc49d06a3c9ddcdbf9bed11ef28dae9ff65844d34b6. 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/FISMC9700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd19aaa7267f1fe0ec4fd263f28270ea2bee9c904bec536f9ece226718384dfd. 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/FISMC9700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa6475aad3605f5266f839a6aa827ffa6362b6fe2e2dd638aa3fbd990e74a84. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FISMC9100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a1f18251fccf348f119cd434edd6855c7450e51abe3229acf7915738147e25. 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/FISMC9100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf71f9a4c39f70e3c3bce1e158dd26467fd45d305618ecadb5fc4717fab6be2. 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/FISMC9700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f04729522cbad6b028f5bb1984d552a7712256388281bfb51a685bb7544594b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FISMC9100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597a5cd771a320e7b2de3c020c3a4fec3f3da1bad1f537d2f54ba24446b413fd. 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/FISMC9700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad3a557ee65be1f1bf30315f6b8fa15cf73cf12522bf2e809552b75cc1b2cc2. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FIECA0600063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4704b70f2bfc1945a44ad999c4f202801865abf5b9ebab96b665eabb50ae9c28. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FISME9200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f74f9e96ec7a53d74a0708bb8051218c47fa18f8b03b7b72170173aea2ab547. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:06:25Z), 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/FIWMA1600182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6569df253567e208a01da7d6e12603883e788bfdbb5a9a9b61e2d94093736070. 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/FIWMA1600218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7badd7e21b1462c48d2f67d83a102d5250bd3420e4064de07a66457b12efb0e2. 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/FIBAR1800003.
Huoneen täydeltä Pyhää / Joulu on muualla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2eee62d5e6ae7b24aff1fea46167c9e3a25628e70a59dc75d4ea66686efe35. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:32:09Z), 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/FIK3E2200536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1293a4976fcf4e81f29bb76d6a77f1dca1135a94ba7619d68a5cdf4d7d313753. 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/FIHHR0390030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2973179946f638dd40ddf54f1625be3bf6f95547e4cee6870bf4b7e835a9d3. 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/FIWMA0900034.