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 0x307b4683ca25f342b2aca98ff8ef1a2137299d2023b295ebbe5a1063a4e83a90. 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/04a7726e-249a-42fe-9286-6b7bc7fb6c1f.json and https://artists.proofprofile.net/proofs/artist/04a7726e-249a-42fe-9286-6b7bc7fb6c1f.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 0xb5271bfb5ee99f3912dc3916d612b75a8340ebc058f18ef827d7548e6a7cd52c. 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/GBKQU2455806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8d207015269753a5e712367a4b16fcc731829a82cd07dad11d66fca569b3f2. 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/GBKQU2417708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016e5fa5a9486a05101d8a60ecb325e96639efc549c872b6bdb6b3137953a5af. 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/GBKQU2508385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94f34f6043fe41991eab437410b3acd278d976637af49634094501be2086b17. 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/GBKQU2504437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c8820e372a0123fbe4adc8ec9dc05e9a94a05325807dae6d6041dc76ccec51. 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/GBKQU2503979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1932fdff250e68f5ce55211a62f37c0a0eca3706d3a179550b2fcfd6307d1cc8. 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/GBKQU2503971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe661b8993f215f81d4b21d7ea216b5e0a6dc2339f1d58b28d958ec9c21c024c9. 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/GBLV62410415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d38a1751c8e18c2f6567d7ef8e9caf35302952c9d04544afd727876f4f2657e. 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/GBKQU2497970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c5e7bcaf871f7cb94bdaee27a648d7c638cc693f1877198d17ac026a8954b1. 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/GBKQU2489336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72012538917e3fa47203dd45331878408748b50efd8db936617b08ffe7377179. 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/GBLV62422037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa128e284ec55d59c1fd3dc369da9a1e7a4e0da031a73a1bb4daba4a2693b75. 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/GBLV62422038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fee125b7340d3557b2551c282d1c4d7fea0ab24d8ea38539bae551b5bfd2967. 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/GBKQU2487789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e3e2202a285ddc95f05e285261676243c802f013efdba7f5513873dbece791. 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/GBKQU2475910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dc495896c0990d77783fb682261912ad2500ac46e19354cd7714f579c1b27a. 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/GBLV62410413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1027d364c9b23d3dabe2ac7c6b90a47f9e4c699810baa81d0673c76534a9529. 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/GBLV62402168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2903da216c31837a5267e52dd9a8d12e8840e480ba8064ca1997104eabada47. 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/GBLV62402170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e1a95723c4a752d11f32e548fabcf55e62c528fb6bb9ee4d310b8d9a0ba2c0. 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/GBKQU2475897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e00d8eafa12ea916c19cbc531e89fbc5f694b08172f4f0d19eac3f3a59bd788. 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/GBLV62402140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe391d66be3d0f6762166b149349b7afbb7a2cb2613e0129c1ec8962769ab4f25. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/GBLV62402141.
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 0x2c55cb77cdfa49d49d46b63bd4c6e5717f58574c7062c8522144f4ffb761ae8a. 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/GBKQU2475894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747f469dd067bf976e7897ba814c409f7f4388a9111276febf75bf6c23aafbff. 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/GBKQU2475884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94dff0b201599584335b9c3188227e813269bf40809943a267527cfec259fe0e. 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/GBKQU2475885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0636c6941a491be3cf79e7df2a3ab9de07921739ca4c8998796c0e75d90486. 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/GBKQU2480751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1dc94674f927eecada0590e2ed5611b3b12549ec007bacef78d2a1246f05c5. 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/GBKQU2466447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1cc0ce9e46460dea8efd26a0b134fabfe5bd939b1c35a3107132943a58505b. 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/GBKQU2480511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964b8af701b784242318b997d2aff47b0dba850adcb0ab42df745bf7cffd0cd2. 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/GBKQU2463499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54372cc124b54c46a98c8f60ee075d0dafa1a0000d10753bdac6faa4adf8fe19. 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/GBKQU2463497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4fc0496e776218ce7516eb94dbf32e567eee84e1df02357d41d3a466ea8406. 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/GBKQU2453945.
Scared & Fierce - Original Mix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5af4e3dae36c340b53cbb4296a23592076393bca55a50482aaecedf23efd4fd. 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/GBKQU2444250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77650bfd8f2e97579aa5cf466edb14f9154822135e9c2eb2c26a355af087a760. 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/GBKQU2434434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80701a642b531640f6f5fec4cf44c65d9934a0218756709fef1356d170d64129. 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/GBKQU2424277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc0782f07e39a08dcd13893315cba4865e7f319315e62b283f69218283faede. 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/GBKQU2417698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c62187ab111755d14f906b13349ef3626c08cd4fcabdfc823ccc61bbde7109e. 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/GBKQU2401875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be99b4f24826e2d13090e40b46f04f11ef455bd7969accdc3849e34d4aa6443. 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/GBKQU2401873.
Dark & Light (Setting Sun) - Darwin's Trancendental Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824d5b76e4fe58c6facdb6ed94493c8c258c744acd4b7b7e6aec2afe92c610bc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU1144269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887e26baaa9d2316328f7eea5228f313de911740edb0251b86fb156101214c52. 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/GBKQU1295638.