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 0x30fef35bed9130777ee132177ddaa043519cc727cc8c8a333441fbbd348e7ea9. 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/894707e4-aae3-4354-a158-cc07acdee520.json and https://artists.proofprofile.net/proofs/artist/894707e4-aae3-4354-a158-cc07acdee520.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 0x16114993d05fb426e2d42750f2af8c5bf9a4ce66f175ccbbcd3da72176f44c33. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/CH7812236154.
Встреча беда - Lavrushkin & Silver Ace Remix
Встреча беда (Lavrushkin & Silver Ace Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fc35ed2ecb22b40902ee4044066a503dfe4992275372a43104a03331695c6a. 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/CH7812195121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50525caf5486b2b3e15968a862fcfade83ef80a61b0b0f7c3e4c48a5d875e0b. 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/CH6542243567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3295b31d3feb7736ccdd53ed8830ecda1db63d5f4a6059a5a6dffdb2d830e021. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEVY82000397.
Chupa Chups - Lavrushkin & Silver Ace Remix
Chupa Chups (Lavrushkin & Silver Ace Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde195016ed6331beffb67a1eb9b51c34835dacbaf57d08c60a8182fb5fbb36bd. 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/CH6542146272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8e7bd811a3a9636e04fb4c655dce53d7e848745ccc6f2fe327e96d6514fbb7. 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/RUA1D2126693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0141f9eda00acd0ff9daf45c2f6c78593224e725f3f5c2c6173ecb63b2ce4b8c. 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/CH7812194595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256d16b4c20a7a67ec675dcfc7759ce5f68d24ddd2a301ada408319804df2644. 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/CH6542124252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f8cebf2b2fdbd7c22ddbf15ed15cd9d55baa4b275697e28923110e65eaded2. 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/RUB422101092.
ДИКИЕ ТАНЦЫ - Lavrushkin & Silver Ace Remix
ДИКИЕ ТАНЦЫ (Lavrushkin & Silver Ace Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abd933c838442a778972a42b3e11d47d6f7efdb815f66037145be7c6649f8a7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH7812187609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f06d629abbce9a615661a2813a9576c94b2e752c03459ba3be0ae2a28d8b40f. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/CH7812187610.
Святая вода (Lavrushkin & Silver Ace Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73081b8b0974bdf2b9d9189e216eb99cd1d1b0997f9f9a029ac2565b4ffdbbc. 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/RUA1D2106702.
Я тебя люблю - Lavrushkin & Silver Ace Remix
Я тебя люблю (Lavrushkin & Silver Ace Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8afafaa5a934c9f83c5dfc21346abbda4d8c6e0351163293b839911470e4c28. 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/ESA011778744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ce804aec13bff4996930728d1eb50f0579b6ae5f56fa92a3cda4990eb1b4dc. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ESA011773590.
Mr.Sheytan - Lavrushkin & Silver Ace Remix
Mr.Sheytan (Lavrushkin & Silver Ace Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f86351eb58398d82434d1b1d3792c7791bca0a92ec8db694b76d54ca114a435. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEZC62048542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3601be1fa3e2cf21d0f0e985aca6a1cccecff5d39505ce56bf0a97f19f2f95. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/FR26V2030743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd4efe27bdf3eee68c5ab02e6cced0fa37b5b1546edec9dce145691b295b538. 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/FRX452396870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c959da9a29e620c37d49d10c11a8994dacb6679cf7487c869324a8b9f40fbd. 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/SMRUS0071983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f4810b93c308163dad58c874d99c4d1810a83926ccc2392c98cd9b45e85459. 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/GBKQU2523783.