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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdc65f6f1aab055c6e26fd34fe273e0762d84aea4afe6ec8631dc71d995f103. 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/14bb82c8-d30b-444c-9ad0-82995995ea72.json and https://artists.proofprofile.net/proofs/artist/14bb82c8-d30b-444c-9ad0-82995995ea72.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce62dd651f31d82c14180c456276042a3fd02f235ee128068788d89e46718ac6. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/DEGA21300942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cb655da3f6852ccc52c915cf289eda1e76fb979ca9bec4273ec9ed45a4a16c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEKC41600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425ccddd1cbcc2755ccc230f87aa2c0bd13dfb5abc1a518c76beaa73da77ee55. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/DEGA21602266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5f6e35d808d673e5ab7260a52f3a2271e730a4a54978673b31a88fd4c2d433. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/DEGA21802623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69309302ccb314abc6101bd4754567d272b0b17be72c71bbcdeaf547f6025672. 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/DEGA21902801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e467f0de50a5d86c429adb895840e5c610119e1e1ec4d8da50d46fed64bbfff. 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/DEGA21902893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd4d65c0d9c233cb90d73ee979a62cd9bb7df3bab4e58ae88340ea1e644e1b9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEGA21902894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56970f064b0f6ac05ce1770e264c1cef1b43781269f006907e379a6dde558387. 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/DEKC41900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b781c05916d1c430fef51ffd5146d7d9eb09c08ddd9b179fcb1dd4c4cda13c3. 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/DEGA22003107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428e1878b1293573623e832efe1db56aa1da1eba95e0bda7ca153d169c84014a. 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/DEGA22003176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99635999b47768173d40eb99033a989ed9186813e28734b49592db2c4ca2ab8. 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/DEGA22103421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bef3ccc37456e8588ed40c8f03f27530065198fc0216f051aa7b934e0bea46. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEGA22103567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead7e3aec49d9e8d05abdcfcb4dea96718c87b7ec54b3bb5e69a0b9fc50b26e5. 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/DEGA22203749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc45932cc792dd261d5da119b923b786289302755018b52498e4a50916dcc3e1. 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/DEGA22404076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb793883c2a4b1c5b9a5316e7d12d4276745ce710ef22334aa656702b8ebbb3. 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/DEGA22404122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d01d813e08f819ff4db7633e61fee44de2ee0e8fb33c90a81cb79999d7abd8. 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/DEGA22404181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5375da2e15443ae70632f2df3bb4e7ee3cee8b8bf2339ca986f5d157162088e. 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/DEGA22303930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ec5091eb2ad70e810d5bb44d3d2deb71dcd2d9b619553515f3695eebc48b3b. 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/CH6540836496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75716a7a4e632ee34205eb58af533151646994bb4894110a06e2caeeab2baab5. 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/DEGA21301046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3ce64b275d1c31118f04beeeebec107abe1ea126fadfb48a6decfb13661d09. 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/DEKC41600076.
ASOT 1011 - A State Of Trance Episode 1011 (Including A State Of Trance Classics - Mix 022: Robert Nickson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa97aef7fcc7b5a8e65c7f865581b42346e0058725dd1e5f82323a0709ee84b7. 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/NLF712103484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cb655da3f6852ccc52c915cf289eda1e76fb979ca9bec4273ec9ed45a4a16c. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DEKC41600077.