Niiles Hiirola, professionally known as Nikke Ankara, is a Finnish rapper. His first single "Perjantai 13.", produced by Henri "MGI" Lanz, was released in May 2014 through Universal Music Finland. He
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 0x13ac3c8ed79f96a220cdabb2edc4c8f381c2c066cd962c2e14f24fc9df00215e. 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/c0afc87c-c7a9-4563-ae0f-1536274025c7.json and https://artists.proofprofile.net/proofs/artist/c0afc87c-c7a9-4563-ae0f-1536274025c7.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 0xfb0e1b2c611461b70619c87109a70b553f14026513efa89b90655c0831127e00. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/FIUM71500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c25f2ea6df547e635ace15e6556919934847a1585a953195f9ee5cc4aa72626. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:53:24Z), 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/FIUM71500458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8257930652b5f78cdf417ac52d080bbe5c52a28fd96eedfd65551ea9c8e5dd7a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:45:58Z), 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/FIUM71500459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76518f079019c04aa55e9ad567c655d23349ff8e01e002cff6fb8562d92b27ba. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:11:13Z), 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/FIUM71500460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e56ba9896008374d7a6d39aa49b7b3d20cc163174d5abc00d5e25e43bea3cb. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:23:38Z), 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/FIUM71700516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fc83a528437b218fa597a1d9d56748fbddd66463d70b243d72e6a28528f0ae. 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/FIUM71800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fc83a528437b218fa597a1d9d56748fbddd66463d70b243d72e6a28528f0ae. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIUM71800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22113144d29de4cf5504881ecce7da9a2628b6ae56c8f2bda3951a9a38190199. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:49:11Z), 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/FIUM71800132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f1e8879d0a158b30071434c76eb0c232072218c77fe65eb5822d7d9728f643. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:04:18Z), 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/FIUM71800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cec4d55631fdd2010e249312130e440e9bb8c14ffa09a54e7da2069d7a8c04a. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/FIUM71800134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e56ba9896008374d7a6d39aa49b7b3d20cc163174d5abc00d5e25e43bea3cb. 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/FIUM71700516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57abf068509cd48f44b9e33bf2d4108f6ae26f3105a0615e1250d90441f2230e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FIUM71800135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5d0330567182705d55a587ffbebdb3ef20e4880c599b9e68f5f44b6e68e272. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/FIUM71900372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c766e15c09f0cbc0246fb230565664ff4b73ad0ef9fb87718ac9569f3236bf. 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/SE66N2231557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00507f00aa5342bf17580e989d23c25eb9f6f4edd916ec7ad952569fd3cd4b9e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:22:10Z), 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/SE6HN2361556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65b4b77081908abd2fbce5f00f7b63e90e9f7d5ca26e35795537476194cafad. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FIUM71500311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65b4b77081908abd2fbce5f00f7b63e90e9f7d5ca26e35795537476194cafad. 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/FIUM71500311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b415da2590b52d34b68c365572ef869fd714dd2c5f191037e5814f00d2b0cc. 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/FI5RR1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7887c5c9f1578ca3c2fa7bf79d2f80c262027f3b7309f8d5ac1e715a6fbca810. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FIWMA1500285.
Me ollaan ne Pt. 2 (feat. Nikke Ankara, Elastinen, JVG, Kube & Pete Parkkonen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d98f5e908a3e6ca14bb61b5cb6592e3d5701f82069761b782fec578bb5a69b6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FIWMA1600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253e84e40c5d794d5139b7236ff733a7d7f8b3798b57c51b4418c3a794015d98. 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/FIUM71700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebddfda07689277121343c7c67230b5fad02629a324663cbc7475de2ad4eb1c5. 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/FIUM71700202.
Vain elämää - kausi 6 ensimmäinen kattaus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a8b52dc3c8ecf1c4b132b4a8119e37a7e6e7c5d16c2b1071a84665dac96e84. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIUM71700179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8588e7425dbfe93ea9247f32f5c4a95cd8695f975cff827baf1ce6f5bdb0e067. 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/FIUM71700186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4a2e774e09a2cd4228d4daece2a3a2f7f8a28865f8c380988228b1c4c80c63. 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/FIUM71700187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07f1e65301b51266887f2b9b63fe597a3d50abfd2afa7de903386141a6f8516. 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/FIUM71700188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ab82bced7146f9786cfbbbc07a4493b178e6a627561b2fdff1ffcecd3ce8fe. 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/FIMRR1800378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65b4b77081908abd2fbce5f00f7b63e90e9f7d5ca26e35795537476194cafad. 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/FIUM71500311.