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 0xecba6b216adf19581ff5ebe07f962f531cd56b609769d2a9010466118e33a7cf. 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/f9d19011-31b6-4a70-a0d4-fcf3bd42e0d1.json and https://artists.proofprofile.net/proofs/artist/f9d19011-31b6-4a70-a0d4-fcf3bd42e0d1.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 0xb598dbe9450173f84bae87c894f30b6054a742d400ee360c90dca31cb5ff1d83. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:08:07Z), 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/FR6V80692365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211b11f14397efd79c09fda964af0782be49656edd4ca8eabea05c005bac2793. 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/FR6V80692370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43651d4da0055aa3b4707bca94a575d8db5c2fb556ccd3974312dc2b7047ffce. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/FR6V80692376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4688edb9f9b697e268ab81612131e914a105df88d5ff47c3e661fc72964c9197. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:18:21Z), 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/FR6V80692378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ca694514c6667a7eb74eb1b2ac3e1735da417d129c05970e1998f4548570c1. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:10:25Z), 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/FR6V80692381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02076319b779b8cfc3b3d094dbf9f4d5d79fbaddb70f5a0af5431ff9d673dac. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR6V80692383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee7bebcb2f8b2fd9553f0dd1555cc3a04b744945db50efdcc2d842aa304c94a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEBL60966090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716ba8b2f3fdaa1a6deabf7db6d30067694865b6e239c2313d4d225b4c3accea. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:34:26Z), 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/DEBL60966093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6861474ab633b8e3ed1607fa1af33c6c7181376d1dd5fbceccfce7af3ed57f3b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEBL60966097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ef04da65d95e7475ce67b38a67587ac542a1e4c215b4b3b8a535f554036c71. 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/DEBL60966079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff51e92fefa43ddc29baa26cafd8589bcc5bade1fe8ff22ce71fe635cb9d6326. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:18:10Z), 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/DEBL60966083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc28955409436baba09c9d0151f486e3824f8a9183d45c9fc6ca661b290b509. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/DEBL60966084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c0ca007b9c7965539bb53ecabc8e583f9a7e26982b7d2207063fed3b18e26e. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:18:09Z), 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/DEBL60966085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a7342fb90061bc421b921fea85342333d33a5f5697633537e95b3e2e7817a9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEBL60966086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1f6a661077b803a8c838a69a305de26fbc7909407fe3ffdf3ad45ea713f232. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/DEBL60966088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b3594e439894e77aaec705f2bc0d6828bc83e78116024a733bda2326dc1426. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:53:14Z), 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/FR6V80471879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fa3071ece180b74e5c83459e4c92af9a2df56d128350252dabc87fd9c40548. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V80471883.
Люби ти Україну! (feat. Tapolsky, The Jackass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e54499fa4056bd24c226b3a041732ee691de2e5addb8433261af7a2ef42413. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRX201501484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5901ed1e194975c6238ebb9dcbb987e3656fc22bdc48d0da062bc42156c2a91. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/FRX201501485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72c5bb0b3e66285cdbc6399434c53ef892bcfc5579f1e3211e68c7026888086. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FRX201501486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3e572b1efacf21232750db2e6bff75129928dbe11c8aa3be3f21f6e9ebd692. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRX201501487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2020db50b9414328423c490db23dfddef986fa5540cdc2d361e64ab09b8b01e0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR59R1643856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cdaa32bbf10347e21d0f461f9ee20d8e20ba251d532cc459807eb0391ce829. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX201662374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02101fe23a542c44313c623b2c37f1babc1f87b83dc829c196afd0da7a4d1956. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR59R1753638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf531d4ffeeab4256b41bfabae8badc0fa1fdfafb37320638da6e60ebf1e74da1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX281704088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424953a8d7769bffed570e2d7086d747211e783cfe7cd731fb03419f296adafd. 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/FR59R1853793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6a6f246d0b5ec78da11e9f70e530ca2c0edbfe46c66eaa54199a3cdd18a840. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:54:59Z), 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/FR10S1973162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac98782226d7b03ae67c763f2e6e7b1feeb618188be1af88ae92b91ff72ace1. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:38:10Z), 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/FRX201996589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd761fc0eaff0922606d27513233a291992c4abbd7f3b34c2c02b82c5c1e2516d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRX452044293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c46c3f8b07d992920512eeed9a680dc0a9679dd169e8da001a0757ff9281b8e. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/FRX282117113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295ab8c554968f6cfb338e4c6d639b8d24739b5b01ea33be5190f308d2deee45. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/FRX202202084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f0f65fa0b95b4b72030067fe7379977d93dbf2218099eacdb564c81db8a266. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:31:41Z), 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/FRX872392923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf16223308c015e54b638286b36b5ff4cca92d24df646e0758a3981c28022b0. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DGA052346226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5218ff395f541fb271d1b40d632cbdfd1341970052fc4e0f34f7022b91816f12. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DGA052346228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c17744a348db496fb9a5216f4ecc10f9303a622de64894bbe43240955f44b89. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:43:53Z), 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/DGA052346231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8552e929b1a50e860788ba6456cffe8aeb805bbd7349eebf060531f4f8217e. 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/QZW9N2235206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb45169a43587180680ea32eee9918cb98eff274eeb1ec72a5d067950a8d94c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DGA0M2369435.