Kirill "Kirka" Babitzin (Russian Кирилл Бабицын, 22 September 1950 – 31 January 2007) was a Finnish vocalist and musician. One of the most commercially successful artists from Finland, his career las
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 0x1075e3beae1af2fc03f52b7555a863aca01330a634d1913dabab9986b6f8d341. 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/31403971-a0ba-4e6b-b036-bb33e99bcb36.json and https://artists.proofprofile.net/proofs/artist/31403971-a0ba-4e6b-b036-bb33e99bcb36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kun Mies Löytää Naisen - When A Man Loves A Woman
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 0xb14dc79b70b8b755b6281ff1087f73c11686b62f60a470faadfbc1a0f683f327. 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/FIEFE7600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f7fe43d2ded97d423f48490892af01b2b403ccf54e8dd2304b7c01e7d9d9c5. 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/FIBAR9000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f7fe43d2ded97d423f48490892af01b2b403ccf54e8dd2304b7c01e7d9d9c5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FIBAR9000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a6131f1983dbcf318ee0fbc2c419f4a392860ac8684d6b05b2117da8ba1faa. 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/FIBAR0500122.
Pääsi rinnallein painuu - Put Your Head on My Shoulder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dc0bd65c07214a77f583c8ae9cbefe7666f840f2aad8604685a118b2d6fcd1. 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/FIBAR0300307.
Silta yli synkän virran -Bridge Over Troubled Water-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641ca31fb9b94eef5a23a7414159278fc6b6f607e570158f5004a7b5857062ac. 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/FIBAR9000303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a326461a032e05d29e510d8093d11a20e581a86adac3b0686b4f94fe6e8c74. 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/FIBAR9000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2cdb60b9ab807486c087a8074a49444953efa35362fc90c1616d27aa4819a08. 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/FIBAR9600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35276d0341cdb597e131f026a578435aa9a83657ae466b3ba7addbfb7410e956. 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/FISMC8200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07575bcdb2ab893b500ffc5df9ee6b4ad55106b891e8b8b7783545bdc2207b7a. 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/FIBAR9700072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476e7c0c40ddba807fa350c8d9152af6bb82159bb6709da2624b71353c5e2614. 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/FIFLF9201001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0070fa514445ebe8be25d9f8d39b5f416104a76c181bc2033b3ca619b3ec651e. 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/FIFLF8900068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376702263f9fe1ac8f1acb6634cb1b3fc04b70aea97e5bf52e1a0be5b6298f18. 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/FIFLF8900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267b30a8f7cefbd146af971066a8d8512ee230833f26182b75be578f02048b9c. 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/FIFLF8900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e04b8706780c5e9a3db93f577bf4d8d2307b190382b181db13c450100cb6181. 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/FIFLF8800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96db7f8a915937bf6aade793e51e4bed6a1e4826296133834c04b75e52516c91. 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/FIFLF8800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9d48a72cc65041b7ee567c29cf9f74f27b2d41bd6ef1f72ce519b181ce3be9. 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/FIFMF8600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76b399f631c24196651c83c520e6a24b5018903d9e6cc59e2535f848b375651. 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/FIFMF8600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b0152f984a4b157aa2265a301ab6ebfeecd2b1fefa18d71673e3f4a579fa3f. 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/FIFMF8600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1c9147667bb331e7f80714ebc9b49198ad4aae0015b206d284579b545205dd. 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/FIFMF8600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c75f8f5b85bde595dc78d523631323604209ac9ae9536bff2ccbbd70832e5c. 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/FIFMF8600045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb4a4d23db891b566a9f7e8203e7f6de835458df40f7ce39a510ac7a7eb13a3. 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/FIFMF8600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c25ad0fb23727c7b15bda249c515ef675a96de170294434be70038054349a4b. 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/FIFMF9200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2cdb60b9ab807486c087a8074a49444953efa35362fc90c1616d27aa4819a08. 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/FIBAR9600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef171a02ef405376648a4efeb887020845c6fb45d9b040038a078e9338b784db. 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/FIBAR9500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f18b0f93e5482c1457de64cb4b8c8949266ecb8b3c70dcfd1949532f725a202. 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/FIBAR9500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476e7c0c40ddba807fa350c8d9152af6bb82159bb6709da2624b71353c5e2614. 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/FIFLF9201001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa105b3e4dd463c0172af5a56b020b74d5d3a53845a2a077464851fcc0dc3721c. 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/FIFMF9000400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe904cfef5fdf869dbd6f5f9188c08b9e7d80619aef70ca4f22935c69bd350d2. 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/FIBAR0700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd909232dcda1cede4057c64d18f87ba352c50fea11e6a0290b2c143e452b4b2e. 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/FIBAR9500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75cedac13b5e3217a84388b638dc0beb293bbc5651cba5aa95d5f14749746b9. 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/FIBAR9500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4377ecc63553cbedd32d8be3ebc7cf4938b25d65d5da79e8fb247a01c326e88d. 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/FIBAR0700088.
Kesällä kaikki on toisin - 10 O'clock Postman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee7fcd766c45a945653b41475f711e855e5261e0ce550cda48e1f41d6eae07e. 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/FIWMA0500903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d24903e8e2452d766261ec6e1118b817a7089cf73ef8d063019af4f25389b5. 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/FISMC8400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35276d0341cdb597e131f026a578435aa9a83657ae466b3ba7addbfb7410e956. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FISMC8200001.