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 0xa945d6f45099885765914f5172c8df105e72de1c5c6735984b5e4625a9bb181f. 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/4ea24d4d-d15a-419e-a548-ebf581e46b53.json and https://artists.proofprofile.net/proofs/artist/4ea24d4d-d15a-419e-a548-ebf581e46b53.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 0xada9987cafe217c1db2f89ced8191ffe8db41b63af5e157b085189b2fd1d412b. 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/SEYOK2427995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02a78135e3473cb84fe277392e1d32d43e6fda9c1f98b2481ff22d39aa5527d. 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/SEYOK2425856.
Ljubitelji nasilja na sportskim manifestacijama
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc884fd131771cd29c4b68ad60c491eca28bd97c9c1ca4d310dace409747423f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/SEYOK2425859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18acd66acb889fd7ed7b8a6ea1de2bb9dd10f87154a35e8fb5171a2be424694d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SEYOK2426599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd372ab159f8aa7ad7e9424da208ec6545b7c8d9c00bcdd7d9fdee32bd21839. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/SEYOK2426601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd75677d60830b0a9b07c904181ec4d5214583f6d4469a2eff301ca4d712e2c. 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/SEYOK2426603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdadb1b52192c39d870e148f0d520e66acd90f20effe801bb7f81d8196573cb. 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/SEYOK2426606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b23440aa552e02b180a5997ed05b4885ea72f2dcc0fed67cd47285b230b9595. 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/SEYOK2427468.
Himna navijača Partizana (Dok Partizan bitke bije)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9785260cb3db32d551246ad996e307270e306fc4d3351282eb147773aa1571d7. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/SEYOK2427470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69648ab179b3ccceb167bd89c2e3b6487155da7e58f380b86fc80ab905139052. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SEYOK2427471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c579b1d1c082f4eaf27ba3c79446e70a099e5a99afc0c468191a5450a7cf05c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/SEYOK2427472.
Računajte na nas (Na kraju sveta da igra Partizan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177eae12549b1521c1e2c81ac17b53dd25f3782da7f362fb1e2707134d5f83a9. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/SEYOK2427473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44b7ee2bb91fe06ba100d6a3e80551976a7c5439ac6293d24540c6f397249ae. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/SEYOK2505927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c898c22241861b23ebc445c139d7ead833e2f66022da8a4a113805920c90475. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/SEYOK2505928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90738b2d504fe05d627b477765d3d98deefd54afae42022b18257d779edc975e. 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/SEYOK2505930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d5742b32df0204093ab667b8ad361ba25f7c7d751eb83db9f1becb0bbedd1d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/SEYOK2505931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4a600924468461880de6b279ecaf7bb4a913c6a85dfaeb69bfc1ad09d8efa6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEYOK2505932.
Ne Zaboravi Nikad (Partizane volim te ja)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51eee98a31cabdf0949be78f3bf8aa9d334041b2604f7b7b09e7391419f3af05. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SEYOK2519114.