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 0x767422b29aedc140f826f90f125c89547fcb75aecbd261417c80c38aff4b02f9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/331ece31-0093-4188-888b-66b741e5b7a3.json and https://artists.proofprofile.net/proofs/artist/331ece31-0093-4188-888b-66b741e5b7a3.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 0x9c6c20167df79498833ee89a65992acee61fef2f1cccaec9a8e6cc07ed244224. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE2VK2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77865b1503f457510ad1dc645b798e06f8ebd9bb356df64ac2591e30617b2f2. 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/SE2VK2300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e793bb330b8b455a5219203f0766f696a9ce10e77268678c1d28e930f3e810. 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/SE2VK2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1d997d71f378484ce2292d08dd878bee310771a26b1a571a6722665951b02b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE2VK2300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd846f2032d9f4b6b4dbee5367ac49ebeab4776045974b9769b52b11112333e34. 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/SE2VK2300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b9fad4f35a42d27f51cd05c9ffae96aa10bc4c222030cc16b53360f8c06193. 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/SE2VK2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94dab157b1039b55ca75623b34a25f62ebf2fb518d260eb157b73b3cc165ec41. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE2VK2201501.
Dags att sova (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca577eb67665f16f50c18dd2ee7325a8ed3d6c97446a37760335da2717942e41. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE2XT2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4402e6445490a68fc579a732a60f3f651556cc929fe7e2f9cc2b3e651b3e00. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAEC1957182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a83bfcd01ac86e7d189bdd58cb090e01a04c44d27151e45b023c76be43c1076. 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/TCAEA1958076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4c6c540b2bbf03163e783369ee1e40f6b010f2f219b3efbf017987c99e990e. 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/TCAEA1958006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b4472567b2475e39f236d961bb2e18457dfce54c1dae614e9ca293c4f07c22. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEUM72401315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8cd2572f27fc5b71dbc08b3528282c14215279b300572d6ccf0bf96160eee2. 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/SEUM72401316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d837ac7233ef8d78a60e0241c7534497c8643671a7f3d4dd2c0affa9fb04c9. 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/SEUM72401317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cf9079138b25700299ee05db1e611062ebfff7ce28d201c0d4c5f3499c989c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM72401318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972aeeaef3f93a1f9943592a2892127d681e69fc2252581a2757cad5f19babac. 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/SEUM72401319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04f802ad7d63ee8efc0fcc6de8f1cd47d0e1968487b6edb25f82c6d77a128a2. 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/SEUM72401320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcc4517f117a060789a268ec3a7b99d91b1e82b87f745722eca1da67a6d36c2. 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/SEUM72401321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1d45073e254740b4d703b969ebb91237fc3506bf269413604c627aa12dc027. 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/SEUM72401322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ed5a53902af991224cba80d4c1a2171fb7da05f18fb680dbac1aedf8452525. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM72401323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cd7a675b3027e637b243f6c6c70637e23d36a01bb5a8443b3db8b4a3a0793a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM72401324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded6e34ab3ff5495df1a9d5b9fa35463007f6d3cccce75af97c81b815125a2e3. 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/SEUM72401325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace923a9d3a44e173b48ff69c3dfacc7fa97a22df173ca86f5eba6fee5de7d32. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM72401326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7fb9e03af1fd2d78003c9f7e8812ceba0ac91265aa12509c92cbce1f16a1d2. 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/SEUM72401327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46359f4294f740d2b17f47e220de01f4487ae902ffa464718935add75d6e4403. 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/SEUM72401328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c15626edc363e962c9e9a32a05f1567ee533612359cf0e385d5c33b7a93e61. 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/SEUM72401329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24da967a4d65799f1dbcf238cba3655fb834e9c27291c0d84031ed544296619a. 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/SEUM72401330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e5781151a8c093b3967b42f55784cc077b4990893faccc84b7c4e43c6cf138. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM72401331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8477936dc630fd990b92b74896580243dfc662e171b1390714f2da9bd463b558. 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/SEUM72401332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980a1d90421ac104210ee64aa60ff6feceb770bc29a2b9ae8385a53837464885. 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/SEUM72401305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42da9712a155b2e210478eb981e8697394b313d2e72525041f64d6967b7c261e. 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/SEUM72401306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f62c558a34a1b7aef25f270e13f1a5f1e1d72dd9bb0e1baba4084be543ae2b. 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/SEUM72401307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4d200c4eb511c28539fc67d0171588595bec3a457930f98faa1b254b5c443d. 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/SEUM72401308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5d3d4ffbcc8437d922fb8040106a941bbaa627bcf922adc12a486c9c24595a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEUM72401309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc69a1b14588144b34013ee42a985b4b98dff21c2fb669a9a2dd4ff3a0f7e26. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM72401310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afc4a439be79a9cdb321bd53e9e31556cd0f0d3700216f9a046d45a29415d39. 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/SEUM72401311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e75f53ce168b61848cfb5d7f261c9693f99549af52958a8efcb220f79b4f0f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEUM72401312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6686e3d3b20ea1b1bbcd66123e2b01e5e9ef1c64e2d5ecaf920305826dafd462. 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/SEUM72401313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f14554cac2cd8d85d829572676083067523f2166390cc00cb8b16def9c5a1c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM72401314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8bb189b4755ff543852969ed1146e7598823a4a4f36b11c977a4664eaf1481. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM72401137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6070c7cb62a298755429836294630dd48a7364c090c228ec1a9135e8b2cad499. 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/SEUM72400857.