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 0x18ac33cd06901044ee7b0489e0398df0f51e8ca351f69d0bb0d0b12f7db01467. 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/8d7ce4e1-1aa3-4a3b-b1dc-fad5a42a4c21.json and https://artists.proofprofile.net/proofs/artist/8d7ce4e1-1aa3-4a3b-b1dc-fad5a42a4c21.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 0xbd7ed9d054a5f72ed06c0a4fba93b8a087e8afa8a504f2bb2b257de9e2ab9aa5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA370512419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bcfbb276210d92a2d71256c07abd4b5e569d8fe2fb0f71fa7a30aa6882bbf3. 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/USA370512424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41777c1ac055975b1759cbc84e264b6233b2dbb8e14f95a991ae83a3089bfdda. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T14:51:54Z), 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/USA370512438.
Geriausios grupės FUNKY dainos. Rinkinys Nr. 3 (Remastered 2021)
Geriausios grupės FUNKY dainos: Rinkinys No. 2 (Remastered 2021)
Geriausios grupės FUNKY dainos. Rinkinys Nr. 1 (Remastered 2021)
Geriausios grupės FUNKY dainos. Rinkinys Nr. 2 (Remastered 2021)
Лучшие песни группы. Сборник № 1 (Ремастеринг 2021)
Лучшие песни группы. Сборник № 2 (Ремастеринг 2021)
A Few Songs in English (Remastered 2021)
Лучшие песни группы. Сборник № 3 (Ремастеринг 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa1bf3db555abd542d4d41fc1a891c73d7a55da90a436df560cb4eed0676584. 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/QMDA61374626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b2817b8f83d8d8af0b2b89b022f3d5db50bdf4dfb0fae81c9a89ddcbbbeab8. 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/QMFMG1514664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c8baca9075876cefda3095c40d26d0c328e82cf03c18742022ec2f170c33dc. 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/QM6N21966773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617ef942d64073c2607dbe7739aa0bfdda00c98d120df64a59859011ca869300. 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/USRMC0610294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b164559d71918d87bea483e407d864b1cabb437066c4481bac069f9310e4eef. 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/QMBZ91325890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1b796e522d8787c9f400cb370adc8c8bbcad669d7c75ae5026f87794a3a47f. 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/PRQF51100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb85bb591efe851b7e8e6cc28f51854938d60a2a990fd60a3e0f7a0c272db5d5. 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/PRQF51100139.
De lo Más Profundo (feat. Sam Hernández y Funky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c339af771fd31ce345b8a2a3b650c8725449684a5863a8c90c83a6fdb1880. 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/PRQF51100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832894acd801f770f0afd3713b1f05afb6bfb33137606a63ee9c4712002cf650. 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/PRQF51100146.