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 0x0005c4bc6cf92700d8123b5afc3f46f2c974fd3183aad578cea47e88d6439b4d. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55649112-7190-4ed2-b395-75e9ea220284.json and https://artists.proofprofile.net/proofs/artist/55649112-7190-4ed2-b395-75e9ea220284.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 0x8c1ea2cff5ab190323c9162f4772d09c1c6212854f821fb4818a1188d2a83770. 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/MYLR11320880.
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 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 0x30ecbd1d5183c2242db6d5b8eb8b28843d0961430a899f6ed8391e38ccc8d66d. 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/MYLR11320750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d7a2b0d5b9fc21a9ac0497767dd74e0f6eea3cdf50e75dfd1a15692d5ee463. 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/MYLR11427111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91083d6c92b965e6e1f643318cbb14e6ac55ddbfc73c4861c3a1d05c9683366. 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/MYLR11220048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68bfeddcf772ce6d37317ecf70af08175420455e8b00a0be784139bbca0c614. 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/MYLR11427116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292d3e5a70e88d577e14d9aab5e60dfe1543ccd4f5893dd3bc2b9b4efcb235d0. 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/MYLR11427114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c67efef017c1ad34b4da08f6f57c02d5a6f68dc006b2b755761594552d4c07f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:03Z), 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/MYLR11520358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378060f38ea381f5793e9218276d6a2005629794f9d0fcfd90afd8731d089119. 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/MYLR11320793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9ebfc225791cb7b731d57801c715dc621ee0c6d43a48b3f86068edc23f291b. 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/MYLR10820650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a7c990a383b83ce4c4317cd17f4c7d80f4ef27ede5145a95377a922e61a2d8. 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/MYLR11320772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec0f7b4f2a015e9ec3db252770377af20f19b2fe57549d7252106e52294afe6. 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/MYLR11320780.