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 0x22bf785179768830fe372a55a58600376297d6c10e022a126a8a35d0fc682e78. 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/65681eef-1d24-4b04-9d57-bf84efabb517.json and https://artists.proofprofile.net/proofs/artist/65681eef-1d24-4b04-9d57-bf84efabb517.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 0x18006fb719c2b3b1343945553b41898adb4fe48ef54fa9ee0c791dea9970235e. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T11:44:03Z), 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/NLF711102321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2b33f0501d911595d7c391a3426c497cf87f9543ec38f25055bab772bf6206. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:17:44Z), 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/NLF711202928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f8a718ff13340ef1e9d4f0543860b01226967347456d21dedb0c65d59704ba. 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/NLF711309293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf053c3ef153041f07f095faeeeebe54c2b42f42dc8851d0b293b45a13512476a. 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/NLD681901091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a8309afe6f68d857cc044288ca2aa72e04b261052306111933df06dbe49270. 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/NLD681901192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3e81bfb099278a052701ae1d39d85f996d41db0c02dca9bf3d4d837615b5a1. 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/NLE712100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08364e90d72ecd216f07800ba136c6e40c7082ef98afb8f5387ae285ec98a4c4. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/NLD682101634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f81be51ac20e94c9e83979a8e18f09d62c596838f5afd79b53679c021ee7eaf. 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/NLD682103206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62b320a14364621eea85197b9daba04cea6d9714885b96d924e74434a752208. 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/NLD682104109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e9b1413571127fa272e1e473bc0866d6e1e8cb196bc3662cf025561d245c07. 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/NLD682104110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea5b4fa164b48e0923af982faeaa8925db60a610c9a1bde13642bfa2f944a6e. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/DEA312200800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd78cee07784ca754a527f1f827245821d93c0f8b4cb8fe1f8647237770efb09. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NLE712200783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b34bbc5ece3033894eb7dfb0af9cb69f75a66cc4494d590c60558e5f01aea40. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLE712300653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ff1edff511344aa902b80c511c56d52e0ce223c21da7639b1a38ed9486de3e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:10:31Z), 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/UKRMQ2301224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a16853da20e6553c9ad87f4a8f3ec8f32254b06fe385f0c821487ba9bd2971. 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/GBGWM2420369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24970513c05f2035681df7d30ba9ee4c3d85c75c1a832ae29b96eef475e8989d. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/NLD682400428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ee13bf47038f897954e370626aafe3f468c87c3b599f31423c77ba854799b2. 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/NLF712501613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ee13bf47038f897954e370626aafe3f468c87c3b599f31423c77ba854799b2. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:42:47Z), 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/NLF712501613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8466b62971b41df7ad4f1b3c552bc6d9e4acf01ebfbad1edb877d4c50f11de6. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/NLE712500420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5bd6f70164093b611a6ed336bb7920bc667dd6f5930ea2e77162130756a8fb. 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/NLF711302727.
ASOT 1163 - A State of Trance Episode 1163 [Including Live at F1 Mexican Grand Prix 2018 (Mexico City, Mexico) [Highlights]]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd530121a4e4f39f7d737d76cafe1035e6c543c3227d983977a84632aeaffd162. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/NLF712401331.
Massive (Destinations 25) - Dan Thompson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e8dcddcf23e4623abc3439bf69cfe0da94f939acfb66cbed75724517b07ab9. 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/NLD682303739.
FSOE 829 - Future Sound Of Egypt Episode 829
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e5f2df65248dd58facfa53b2253d952e9c886d92afc8817f623d849961d8d0. 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/UKRMQ2301271.
A State of Trance, Ibiza 2023 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344f1841040567cd604204e775e7b5297e078b122c455e5e575cabc0f926d63c. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/NLF712306525.
A State Of Trance 1000 - Celebration Mix (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefa27a15f42a07dc68b2b568254b795d38c86efb0d7707cc51aba649c485fb8. 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/NLF712100487.