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 0xde1c0bc81905e32fb005f0163e6fdd4d06f2a45a157c6b2361d10517fa1e4e0f. 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/464da514-5d8b-4698-ac89-bfb6f0a88972.json and https://artists.proofprofile.net/proofs/artist/464da514-5d8b-4698-ac89-bfb6f0a88972.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 0x3e83d0a5eb82630bc816b2bbf398356bbf104a38a27fdaa8b0e7637fe56b6fac. 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/RSA141306196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a266096afac5f50425015bf080d3914364d678cbe58577ad5afb7db10aa51b7. 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/RSA141306202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5464615d53252db7b47644d5980f9e1b5bbf4359b60f01890526511fa6c565. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BGA671267303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a824f63dabf5b7bf4c5a5398207eea7da129e04653bda29bf6b0193c3d3b5c3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:15:42Z), 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/BGA671267308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c2cd3eacbad521b3935f71ef1d781bb9cff8421361db49dd70431ab8feb725. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:35:49Z), 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/DEVI21700148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab470632ed9de1cbb6bf418c11d1095471f7504e6eafbde9c327adab72fff65. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BGA671227384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c0fa0ab2b287a984928d3ae4d01e1ede4f33505a849e13dba5bbbd65789de0. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:31:20Z), 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/BGA671227392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ef7549555994653e081d0dfd7084266b8a9f8c2b375ffbccfc5482cad88f3d. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BGA261302714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23db573758092c33e969aa650c65970397652a332a5da81959cac16ca251c193. 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/BGA261302718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9f115dc1c0b1c924fd0eeb6c31732dc33e40d69012656a7ace8d3405b543d9. 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/BGA261302719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bf213076920433dcd14e3a2cbeb563bf4c72ad6710a5463ee0c0da6ed945de. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:44:15Z), 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/BGA261302720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7424a8853716ca519ff520b96f7f5601b7f2e6de936b9c4c73823f825c914973. 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/HRA048705507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede67460d733d467efcbe13edeb321bacdcc1df0a490662bd2c160570d81466d. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/HRA048705509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7eb638a318872345f651a8c2388729b4db60f8cf108138d21aa9098614a69d2. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/HRA048852544.
Šerif Konjević Uz Orkestar Dragana Stojkovića
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a199f56a3e6bbf625390c53112fd87e5c3641c5b3e4d5ab5a4170d423eba407. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/BGA671228605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5145e3b5df10b9480ff002cbb124c0f4b7eb996826490d10451637b6fc758691. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/HRA049125345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe0f1f42fe4e325b3f03af864573504b540d8bbdebecd1d29d3e1c15d900e5b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ATAJ19300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb020884ab2b91b1ac54856acdb167a5dba57874947f27228afa4c2c268d8ad40. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:47:33Z), 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/RSA222300608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa19e1a93533391d07cbcad7e4b215d06ae07f489443074e8702925bee7868c8. 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/RSA222300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45045c47e966d3d80490dffd0c7c38640e528b3be48fcb9f2d0969298e5105b8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/RSA222300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21ad1f923e06dcd07b0ce23b30f77a5d266f6768ad4dc37b31456418cfe40f7. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/DEQM91201521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc873d7f0f23cbff1f0a9118c9bf1a405b9434f8c21483d49271b3f522699381. 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/DEQM91201526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6d51cd858e60a26f12c8fd8ba4e5ad0085450ee58a93668761da906dc5e7ec. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:44:59Z), 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/DEQM91200542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6371a90ba5585d87e59977d0c5d14904c706374b203f1845023d60042f30bb6b. 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/RSA141303938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32b6ff31238a5be2fa0e2920f0702b576a852b3617e0b9ad219164c8a3d2cda. 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/RSA222301349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9971f25d0a0ae4b1c93287ad0437173d5657c347a9e90ea6d4c95085960179db. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:41:46Z), 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/RSA141303947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2230771b3f3e6d68a7c6068cffad66bed5f8c3bbbc32cfdcd932aa24974aa9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/RSA222301955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c2c5b0dcb7069ecf4bfe3b59478f349f0b4d835d1ef47226b6135e17cf4376. 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/RSA222301956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7f65d555fa23d97e1598ab0efdd211c32a1192fa761361b466fc3b32fbbfdd. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/RSA222301957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddfe607a431eb18f16e47b7eb8a8306f6a4d080a7ccef5882f3d09e135f1230. 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/RSA222301958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb71b3bc3b83865d32f34bc965ff5117584bd0f184ec324e155b023e775d4f7. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BGA671317709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b823b64d8e3d1baed88fec11788725c987ec8c9c8f4719f875cd672a1daac2. 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/ATAJ11800312.
3 u 1 - Serif Konjevic, Zorica Brunclik, Semsa Suljakovic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd93a786331becf5be4ded0ebf592f871ac33f7fc6817e95c71525811af16eb. 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/BAA052338355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3d977fdbfeab90f35d092d189994c26cad260cbdb257b54134e1e915827417. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ATAJ12400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c42c6c2189662792921c999c463946508a654cc62020282dad8ce7bbb110656. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ATAJ12400129.