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 0xefe91844369146f81a2b8eb329964f2f2a4b6a36f6b67733104b7afe731700b9. 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/6c9c678a-5bf8-4091-b545-918bbb3d4a03.json and https://artists.proofprofile.net/proofs/artist/6c9c678a-5bf8-4091-b545-918bbb3d4a03.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 0xedceee2e946f41c86d4c0a4d1c9466822736d5a8c3e70d4e0f21276fc5d06105. 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/NLRD52354593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc107efa6f13cf8b08cd5f005787788d9f463f14c965fc706bfec0541aee3b458. 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/GBKQU2430059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7061d0d7dd3e009ccd6b1879244cdf2d3e4fc7edf54af879447462dbff99911. 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/NLRD52304322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50091e052c2fb3e26b431d6873bdbf09a97b1c61bc636d7b8eca4c85da4d1083. 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/NLD682303068.
Peace, Love, Unity, Respect - Invader Space Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa518c74b5dad8023d171512b3bb9fd5fdc38cd4696cfc97aaf8d9734734d092e. 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/GBKQU2362735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf869249dd360f302b9a950aba0bcf2a5b7eca39545888072d8ee3e4c995becb5. 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/GBKQU2329992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55055123bd530d104089fe820559eecf445f6605d2c849672de20053c9e76089. 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/BCVO92300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e123ba2166527778cf50482d552454e78088a9ea7f45fd3fe0746e1a3f7487d. 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/GBKQU2297113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775534cdb31881e95d18bdc2c74f50d465a76d0619f9571524b09b80550facfa. 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/NLRD52119673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6715c0d067ab28c73ef19d10b0756ec017c84ed2478d7662fab2c54b01f34f63. 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/BCVO92200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22ef6c32afacfa029badde20a438e0f94c81d0bdaaa4c7cd4507f62d81f6302. 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/GBKQU2242673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd7f2da411275bde1089f6527ea29dbbf5bd8fc0dbaba9d4811644fb4f65a7c. 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/GBKQU2241256.
Full Of Joy (Invader Space & Middle-D Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f08f61854625e6bbd65044d69c2ea8ebb04e2196143debe5056e367d3a7605. 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/GBKQU2150019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e5443a270accf50fcf67b8ad5d33827c44311094392f8dd216c29bcfc27715. 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/GBKQU2150016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf373f88af51116a0e830ccd6c1b7ef596f96b55deaddda291bbba38aae0fdb71. 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/GBKQU2132364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3758ff4e4471e58d39f938ca278bed8ebe42e8692c604b134552d244f46081de. 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/GBKQU2102025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c2889e2aabb1ea7d76e6b3f2c70924e0bd550a76638381e32f0f216a8b0600. 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/GBKQU2085712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1320d79797e44bc651542e866c7dcd0b0f8372036da3ea7bf2c6ecb506807ca9. 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/GBKQU2060354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775d72011865e77c0a9b0cdcc86f96bb53c26a36848b5e3efc6b143d32f84621. 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/GBKQU1999855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8cf95df31de9f8f4cb9feb670b3b152ddd4ad463cad4acf016a4d0513b41d1. 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/GBKQU1957825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcde83e71259a997cff2f1996f1d2f5e0907ab3f6a2a51b420770211029d5cb. 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/GBKQU1908578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6354134b46451e77ece772510ab231173de4d6642bf756c8d1006c4aef34933. 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/GBKQU1886029.