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 0x4c3f7862e6512faad96ef3eb26ce606d7580f14925e3bab0ae1de019669bde2e. 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/27e2f116-7337-400f-9d6b-48ca74d36f2c.json and https://artists.proofprofile.net/proofs/artist/27e2f116-7337-400f-9d6b-48ca74d36f2c.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 0x681e3a72882d6ebbfcefe29c0556c949de8ee4261d3c0249af927b7d8ac39658. 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/QZNWT2072506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab631c80d34556a171e216f5af731a385aefa3d9979fac9caa0d69bafeea4f8. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZNWT2074321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8395aece27a5389627ba15a07072b37a8d4eeaf727b99b776f9ba867eebc1bd4. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USDHM2114531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b2713e50a5c6b8ab85a413f859ec1fb2bbc50fc8ca3b5ae429beb1f342d8d4. 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/USDHM2114530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6711172ec1268698df2e707d3bf3840e6aac663b11562ccab0105793b642fd. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZN882158396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef99401f56297bf3dde3a9646f11ef4f7f9f866634bc5121bc2f0f882d07f7e. 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/QZN882174974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17f67955700a1116d841cf72cea16096c9bfe3379dec05d4e2be96da4ba91e9. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZN882166427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6245ed35083d5f859b3ef2d2607ddae048b8ec0d1703714deb7487d75e801a5c. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/QZN882174975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66093b187dc38a776813e4fc3ca73887d9b617c9a292961de8e2652fdf9a4aef. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZN882222482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ba729d46db1fdd12d23d8f738653d4326dfcedc30375fbef633dfbda474956. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZN882231448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce22c042d05aad2dc9ec8df22b2946b71fe621f67e6646019ce6a17e36e4572e. 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/QZN882249696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21aa3e658766812a5fde6aec1e0b0967c29739cd4dc07263c2072608383cc4b. 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/QZN882288540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd457b5ac18022be1eb084582a478d30dce643ff721bd955b6d698414589256c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZWDW2205873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbecdee71e46b46c0a2560aa763d63ef954c797776f3ae18fa8c97a0041ecb6e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZN882234981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f80ab10f4f0ce5d812653cd432a777255377a782da77cabd3deb51f536a6c3c. 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/QZN882253373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f580eb2b3d08268b9770d99e2addff6ce6c0882a6e0d224c2404d3fd1b3a75. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZN882212084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf107758bfc4bfca373885803e1adf0dc8461780ab391d3783d7426dae7ab0930. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZN882244744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d913fb0cfff2032c90a48b7be70c0099713b5c5c93a3b68ce37d9fc335a9add. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZN882227511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66093b187dc38a776813e4fc3ca73887d9b617c9a292961de8e2652fdf9a4aef. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZN882222482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e04ce235d7aa8fbeb9c9cf77040e06ba028f276caff967d3b5c4c0a9db34f7b. 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/QZN882237948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c04281a081143e05346fc3da170876df6b997af7b7ae3e59bb57fd86e65fc26. 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/QZN882216302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad69be4955ca4ae4203592b374846825282f49942f44c44b3c38347badb8207. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZWDW2205874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f136e20c5b4bbaadc611636d2c8bcc93a1d71320f9203e9c9c7cf15eadbe80. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:05:22Z), 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/QZWDW2377139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cad762c52b56341d9e59d6c322b977807957a2db8d734039f9f5eed36bfb27a. 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/QZYFZ2315420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd86dea5a3ef9b9cfc1bdbae5bacfcefc54cda0b486c45a1541b32f204bbb1b8. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZYFZ2329403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc8f96a071ff037150bd568e7bd4e2299860712f821433cb6dc21e77ba22424. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZZ662350445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0862ce53bc615fbc0d12910e2725c02d01da02713d585b4be2a1358fa0208134. 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/QZZ662350446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0205aad9df8b3c764c6e06c437ce59d90f6c14b804c4ecdb35e03317fd38d9a6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZZ662353806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0ba8ef52e6c952a54de1faa44ca27976fd66d44b07a5b4d5876b61019ec717. 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/QZZ662350447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2976da0f9b7102b48b930284f04558bb0ea52a9bc137296c8d37405e9d77f10f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZZ662350448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03daad0d067e27a99e16dbb41d111e26ce7ecb6f826b4298b91a5339ea466ead. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZWDW2347930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecfba4416a976768eb5d72551ac2797ab7ced69b1d346eeda483444652d7bf8. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:58:51Z), 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/QZN882401310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e4f70e5d28c4e015584075ea8bc90548744d996dabbd896513dc12dc42fd07. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZN882353479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd129e877b144adc85eed251d95ac6cdf178ae38f3a206bb03c419b5901eb85e8. 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/QZZ662331645.
Slovenský Mix (Na Kráľovej holi, A ja pijem, Nepi Jano) [Cover]
Slovenský Mix (Na Kráľovej holi, A ja pijem, Nepi Jano) - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74dacf118affb866dd50e06118134e0627e1ee8cb68d6038289463f21a14c069. 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/QZZ662493210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf949138274ceea8febde1c4d61093db5ecac1e62858512a8d5eaa006eb1f8c5a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZYFZ2449302.
Mercedes | Sukar Čaj | Žijeme len raz (Letný Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf964decb68f518f69ff203e2f0e45130fd056491344456d0a7f2db1bc09cf7b9. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZWDW2449639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29834a92fde82f9d89c18b39dc9b366b2b192f32ffd028e3d6c2381af6110a96. 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/QZN882590664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b6cd638fee7262514695273bb039bd23b558a8a599ddbe1fb839450f8f9235. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWDW2572401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147fabd684949768f0ebd5329fc98d42ceb117b54ca140434ea4480dcec74146. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZYFZ2431314.