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 0x92f6b298284e53e93815dfa260bab7b067a5c6f3c5c26322db04b4d23e2174e1. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e701613e-8d2a-4454-bd4b-c645428dde23.json and https://artists.proofprofile.net/proofs/artist/e701613e-8d2a-4454-bd4b-c645428dde23.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 0x8ed45bb075224e19a499b1a19ec85f5f8336320b17f850ff94da9909aade6145. 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/MYLR10820305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bc1fd17e7de8d5d757856e0c37931d0e571c26285426e2f55d5bf56d1a3f1d. 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/MYLR10820066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17594869085aa3bca9510dcc413219fe556e8f2526d67e92138064437933dc. 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/MYLR10820063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85064d5eca891a7b6e83bf04b8e38ee0fc43dba148d1a4f4c0eff2f379d66c3f. 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/MYLR10820056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0fa8b0cb94eb25ea483161d0d3eaa9ba6e187880014e716fe301fb1b95a26e. 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/MYLR10820060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c029fff9d34716523b989e2469e5d0871f08d56cf8987ae2978536d11d4317b. 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/MYLR10820040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1807171e7a6aec546693b2b2138b353999126feaa34bbde0460e2b8dea65d4b9. 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/MYLR10820058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa163a4c60d68e8cb874318337e8c22aaf53b6c3330b6d90b2316327aac4aa7d9. 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/MYLR11320005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849cfa89f49fe753b9abb1dec321b066090d8eb27ad43abaf00cfaf962fc5bd2. 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/MYLR11320013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc830530f87d860315e835a45d69ea84c02f8e4dce801de2a6b69e113b2960e3. 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/MYLR11320015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2686081cd4ed61b92fd6f6932a73937eb31470119d08590436a5987051240aa3. 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/MYLR10820036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be67d448c5a1689ec7bb14acd037f4cd9574cdaada9093a35f0ba8c10e4ad58. 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/MYLR10820802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374fc5dd7c6150fbc429d1be651958d10719622e79366f42e946e02c9ad06eee. 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/MYLR10820348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17594869085aa3bca9510dcc413219fe556e8f2526d67e92138064437933dc. 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/MYLR10820063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfce0e7dc87da969879bb91760fdaf1c9ad612d840c0ffab428f3c901fb7bd4. 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/MYLR10820653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923d90aa5b75cc024c1a93b3389d33449062e1dfc73b64f35ce1d4b9c597450a. 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/MYLR10820442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4787b4cbd6d70a52a84716ab61d3d0e259f39d28a4dc9b3a51cf56f8f5862f10. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/MYLR11420040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11202e7dfeea0f1ec3ef4d144e37700dea707437c950a8f3dfa32c9f6708e4c5. 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/MYLR11420397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d718fcc0c07e745878bbdb97ee4f4e4e3fc0727c21785736412e795d07c0b81. 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/MYLR11320990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468ebfba15bd0dee339263f06fa6b9c79768fffbe909cea54fe561f01c59f309. 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/MYLR11422037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c37e82d8b35485961ad7c31d261c25e2862911a641fa563da51721d094d2f9b. 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/MYLR11420666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c275a60b4906419f6cd84faa9041252a97e6a83f44b2334983ffd4327c9103. 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/SGUM72400304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba382b2ce5b703c3bb5da636a098e7525dda9b660cd0dab77577ee44a91033d. 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/SGUM72400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a87f393ec078e1b173a5aa23b812e081bae70c154081a34084f5daa08347a4. 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/SGUM72400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8029b23cf7bc8bf11d84386404a8dcee8c1c893accebff5b87d2762ac9cdc4. 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/SGUM72400307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53382c58eab03927f8202ad5a58485eb09692565eb7c062e952d29197923bc89. 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/SGUM72400310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf5dba1dcb9f77ad5ca5148982ccca60e1d123622aa34f5e62c3a1f0542b4cb. 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/SGUM72400312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb442b69f0418290622f2542fc28623d6b2e68eb3148d39531522a11f6ecf9c8. 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/SGUM72400313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256eb07ebd1925f6fa7685e4cd41e7b31024b2f68387e61ab5370b6322acdeca. 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/SGUM72400314.