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 0x235af80d2f1bb738a1c06440ec2e712b1cfd53a9d214ec0a99a20c7634bcbe69. 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/9d6e6482-b846-4f18-93c6-290e1eee4e36.json and https://artists.proofprofile.net/proofs/artist/9d6e6482-b846-4f18-93c6-290e1eee4e36.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 0x89bef41e4d2b4bcc08006d272173fbcf814fac0c6442c990e3ced3f178bc6efb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKB831500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc2ece9d2c3bd7416a7ead65a1ac8d1e8aa191a2b09c07d7d1dba3ed0d63d51. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/UKB831500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa931d2269b71ab5ba11d35bfc728bfe048290f57748a03f145d8cf28abc54a0c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UKB831000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e0c1d523ec915ef41c63251f512141e5a6765d8935a79b2834656676b003cc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKB831500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3532e87c852457eb89bcdbf86ee40dd831324149063002416521e4869aa2f84a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKB831500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46239ab6494d2b23ee2fb32acaf45b1144e37c84ac00e5cdda2038293b49f39. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/UKB831500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31844995a764d9071af9b33b5a226e99b45b1930989c03419ded84a504acdc45. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKB831500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4825d065d2f3bf00ad08f3ce300ea54fca1c77d3650536aa410f1f4260cef. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKB831500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeff88755fb363385f606d62212622e203fcf6c98cd34c5d14ee714af4b04e44. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKB831500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962305493f973672ac41eb4797a423bbc7e8ab8318d9ea8ef6ab2356a4ec858c. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/UKB831500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c68cf449448107b38223c932421efdbaaae8490255a783582f27d125729491. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKB831500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde508e9e6ebf10a5e711acfb70479b00dbf2acb70d0921353aac0fe757c2d4d4. 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/UKB831500015.
Pioneers, Legends & Icons of Liquid Drum & Bass Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fd646cc0936e3a933b7beba240097d6810956244f984548c541c7918176f50. 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/GBKQU2448384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68136cece6611b1a73638e215c1ab92d7e51c1a563b6a50e2ef188826dbbb443. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T16:16:17Z), 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/GBKQU2448385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1e4be0d582128f5668eff00f884bbf717e68f26d8df0619afb4132cd3ce089. 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/GBKQU2448386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf833148985d8a89a4621a4a5c5ca447c1b8290ec639cd286c82a880687e618bf. 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/GBKQU2448390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146aa7d2ca4c905dba1e8fb4c31541e8d4accd3d66824972298cfa397693e71f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKQU2448391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b25d82032593003daa3b102fd297bbdd6b6878c2bf84ff7aaba9c086c6799a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2448393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abb27421003fb1addcac4b98eaf25dd9e5302920247f01f861abf97eb351015. 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/GBKQU2448394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba90b0af02316e7a79ca387ffe50295639ea62e16b4789bfb0f3e15df0fd4dbb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2448395.
Radio Therapy - Pt. 2 (The Classics Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fdac7b6c7c25ba85b12cf7601bf5f057f03eface392b06e96bb1f990f1771a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBHF1310799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6181f099bfc89dbe90d184cb940b92eb20f746b6d5f5a9076d6bd2ec94993931. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBHF1310800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180d7e18b8669e8aa11bb3bbea5b50eab4beebf6cef05e4e01f2ebdd6fc1c53a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBHF1310804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a262d0e8ddd11e104934c7a585ced82e74f634cf4f69ebaf7ad88a5e05fc17. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBHF1310805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dee25f86a40dd3a490d6a3d6845caac4931de20ca4d7d5d00372749c036f3b. 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/GBBHF1310791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce1e481393dff32b8df1dbfe5da77a2ac92329a7a8e6b2f6ae4e0c5b38e8191. 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/GBBHF1310792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cf2b5761ef8ba6b11e9ac691ce1b02b339eef8c0fd63172a8ebb276471c013. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBHF1310795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3205e41bbd47365228300a9679ee5cbf9c59d4de1b52960717225dc915a2fc0d. 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/GBBHF1310790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf503e75ca933bcbe29cae2e720b15776ef07bb438d6a25646c96d4d29f907143. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBHF1310798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b186d18d6051e64c432d6bc51161d4acfe77bd4b4b7c8bd5467dc79b0f8074. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBHF1310796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939ae9c2cb0562960d80e8262b4da2567691f951684c98a7a117f4756daa6239. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBBHF1310797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b4df8610c26d786e7725f0004f746409ad45700f1a44435c9f93527651bdb6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBHF1310793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e2b51dbea7249fed3ce89a4f3ca69cb753846f61daecd14307af4c4930ded8. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBBHF1310794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972b7930b33d79666d69b07daa6b54c9ff354a719ef8b040193e4ccf680a4da5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBUKN0900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb09f16a5c6c8f6a57f020ee292bce02f90085f4a1b8b24e7f073abf5b15123. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBUKN0800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e95b77af0ef4f4110eace0055b66c2834d6ef1a399659640574aba1467a3d1d. 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/GBXJH1000237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dee25f86a40dd3a490d6a3d6845caac4931de20ca4d7d5d00372749c036f3b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBBHF1310791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3205e41bbd47365228300a9679ee5cbf9c59d4de1b52960717225dc915a2fc0d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBHF1310790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55e15f21bf6b99bc4b1708cdc8cfa2f73fa0f9a707e1f7bf474092490ae3a7f. 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/GB8KE1958170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e691987fea55e58da49355fa8ddafd9abc7e8fed731cc375ae8d4d5bb92bb90. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB8KE1958171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3080ab31da697c3f5beaf74583d3f6b95cf7eb27541be06ae71f94141035f0bb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB8KE1958172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f31e05814aefb93b89cbf9fbef8c3ebe3fb1895ac8d92df8d8329ebce92bb6. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBLSB0600013.