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 0xfa28ea7bad93e8ff8ccf884e7dc81a633d78669de38b8a44d6e05b72c9ed3cb4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24030632-4954-48b3-a696-b8fa412ce83f.json and https://artists.proofprofile.net/proofs/artist/24030632-4954-48b3-a696-b8fa412ce83f.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 0x1d81ea2651ef047db5705f19c7c69c8f403778385c63a7246fa932c5bb22de53. 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/ROROT0619705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5055e773b57de0ad09f84752bf536e47d1704560c17baea2fb353a46484e8569. 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/ROROT0619706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3fde6c09d3e3c078a38cb1dff46c7184cdf23639d2beba298b60b2886a63aa. 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/ROROT0619707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c69bb106a6d19f820ea38260fb6375132528c710c29e640e06945481919ff3. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/ROROT0619708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55c6225866efb0cc60662df032407d97d474fba13703ae280b7b4fe8ac59ac3. 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/ROROT0619711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e20bc05c3d035707ee9f64400b09b99da179b41444ada85e62afdc5bfd5777. 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/ROROT0619712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19dac055fab527594a514867d629f07d06d9c1487484143c99840afcec9d27b. 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/ROROT0619715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d81ea2651ef047db5705f19c7c69c8f403778385c63a7246fa932c5bb22de53. 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/ROROT0619705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5055e773b57de0ad09f84752bf536e47d1704560c17baea2fb353a46484e8569. 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/ROROT0619706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3fde6c09d3e3c078a38cb1dff46c7184cdf23639d2beba298b60b2886a63aa. 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/ROROT0619707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55c6225866efb0cc60662df032407d97d474fba13703ae280b7b4fe8ac59ac3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ROROT0619711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19dac055fab527594a514867d629f07d06d9c1487484143c99840afcec9d27b. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/ROROT0619715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09af691b7c65ab97411dc84a049c08de2f707ad924454baa91f73e1b61e70cf3. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ROROT0601907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc860aab34a6f52570c6fe4bb5a49f990ad6e429763e0c39ac84f15a014bd88. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ROROT0601918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3723930b5f60d42ac63a8ec0fee46a98c5ebb250efc30e563430e8f737d60b9f. 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/ROROT0601917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40095db2b0cdf78cfd9458c78b36fa48103bca4be717c941f781409ceb096163. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/ROROT0601916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810aa6844445c5f3454a7ebb44459d6c9ca6e9ad6963e969045db045a7f8c130. 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/ROROT0601906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340a30e4f371ac6ab79d232d4f4663f1b63edd69a02b1aefa2bb02c0e25d2798. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ROROT0601913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9750f6d66ce6a65be55d9c30e94eeda1b2f0a7a3da602a2e90305b01fb0b4420. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/ROROT0601903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39493dfe9a3e031337989495564eb3ad48a20456a0a6d42bbb15424bb405ded8. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ROROT0601908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724c839fcb604434258dc4d5076177f3aad528d73464385b273d5bebb3bc31a6. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/ROROT0601915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340a30e4f371ac6ab79d232d4f4663f1b63edd69a02b1aefa2bb02c0e25d2798. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/ROROT0601913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09af691b7c65ab97411dc84a049c08de2f707ad924454baa91f73e1b61e70cf3. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/ROROT0601907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc860aab34a6f52570c6fe4bb5a49f990ad6e429763e0c39ac84f15a014bd88. 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/ROROT0601918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92159d07039e76cec4b3579b97f291b4a746845473547a58ec8fcfa05df638b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:00:40Z), 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/ROROT0601914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40095db2b0cdf78cfd9458c78b36fa48103bca4be717c941f781409ceb096163. 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/ROROT0601916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810aa6844445c5f3454a7ebb44459d6c9ca6e9ad6963e969045db045a7f8c130. 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/ROROT0601906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df5d759f2a50ff93ce1e51acc3b32aacde0fe78ee6ff42bbfb60f8eb80d6fb6. 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/ROROT0601909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f75b3f3ce347fbd1ae8e07915111d88865550d78b3f303748878b541b7e2768. 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/ROROT0601905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39493dfe9a3e031337989495564eb3ad48a20456a0a6d42bbb15424bb405ded8. 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/ROROT0601908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724c839fcb604434258dc4d5076177f3aad528d73464385b273d5bebb3bc31a6. 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/ROROT0601915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09a889cf00e5b2ed71bc99d34378517cde9fdacca919e6fc9d7566349a71d65. 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/FR96X1649842.
Statul E Tarfa Cu Care Esti Obligat Sa Te-Nsori
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1adcbb5e37917a30290bf857262b234eea9dde23661a04fa6cc4f8bb62b74eb. 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/FRX282129449.
Lumina de la capatul tunului - KTC Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3eb9e7911604c139ee7307f776e8a7665ed3f9aae6540a3efe3032bf8e41a9. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ROFWD2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ac21d174a86f1553c32b3a76d9f6004410800bd50851a0687e7c2ced70029a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:27:24Z), 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/ROFWD2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3032786f5f9a4a5076a657ad22b0a3f424d0b2e1f6dd58ed5a664f29a013d750. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:36:14Z), 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/ROFWD2100008.
Killing The Classics - The Instrumentals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6032969a6ff41f491e36f7fa807d81daea6bbfcc95ef8549bd072fb55dee9041. 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/ROCMA1002035.