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 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 0xee494e503529bfb744c21bab9756ab5271e1ab5bdb2f3b2c5cc2db5427dd2119. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cd18dec-7e44-4335-9e1a-16c86fb4985c.json and https://artists.proofprofile.net/proofs/artist/3cd18dec-7e44-4335-9e1a-16c86fb4985c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All Black - DjLostBoi Mix (feat. Swaypopshi)
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 0x20dd497eeda2e6721b5e2d927da9e90301260914777ac10bb7ac1407d2c5ed42. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZNWZ2365913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c57fc7336fcc5041ae2d444bd0b5f60c45466e5c4e2bae4bbfcc499d356fa82. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZTB52319853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55785e5c192cbdc88e680acdc05f4744d64ac3422cb2697610178ceab7c429bc. 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/QZTBD2336215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530e444e8a598832cffdce8491a4e4fd9d82035613d830b2096e90b8ad3210a9. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USLD91753690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9638307c9847de8334b9d2a8e196b15139e1b9d115369a1ee955370d789de377. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/USLD91759534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404a05a7e8bfa3f8355e1b629b963025fe574e11605791a13fe02d48f1b8eaa7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USLD91762399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e804161d4f0aef91f5584765d13ce342383bde5361a15ee63a9c8f781f357f. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/QZAKB2436596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60f7c1e8250b62a41caa70cccff52f990d164e15c675585fe9c6f6d417b3495. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZZ7M2405485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ca001d83039f3199ec72266093e4f28357c76475e0283e1518e2a425132807. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA72519771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659928edbfc7481ce988ef895d40be18b39724d44e07ec4bb16cc082d24496f7. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZK6Q2525676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdee3eb2546b466289532e2caa5d300743eed0621267e72a2d828a640bc30b6c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZK6Q2525677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1e0d5046eb5bf1bd00287b02e88f3499bb0bbdfa80e507b7c3b372ba526dd2. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZK6Q2525678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fe8dd338c5c9681ea6854235104dad574d58259189515df0cbb019de045f4e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6Q2525679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f069f33c205f1b5fd9a2fd865a6dc64cd5f587357a7e39914e356932817043. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZK6Q2525680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a3ab7fa79ad4f58ae47606fa2cf756b2954b82601d6095a1e90c79aad560e0. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZK6Q2525681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2442ab21a082509b218fe927994b62bb061907a2f5b29a378843bbb82da74006. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6Q2525682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa2522bf94428aab78432f98c9d67abe8635f03b6f650461a49c0e46d3211cf. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6Q2525683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1541504c8174dc5768c82f4497fcee54d312908d5c955cee58f51263bec35969. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QZK6Q2525684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668bc0f3625c1cc903785afe106627a5d0144a46335d145661cef6b90647a5e3. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZK6Q2525685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30679efd9cdf44f571788548aeddeb1cb9a7d6d6eca2cb89a1aaf9c663f08e40. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZK6Q2525686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a26fa3e860d2521454d28af0ebe26f03ee75e441eac993b1eaa7a3866d9aca. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6Q2525687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7847d722d78e7b3b73af81503f4018a29d414eef3b42067c6031cc8b72a299ab. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6Q2525688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4015dc12ea775ec94c2f73f22e3361a1348ace850a9e87010da8fc3a70b05e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6Q2525689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41563778b79e5f64b01f4610a557ad6bb3ca96415f1e811bcf70f0da35edc43c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6Q2525690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298824d7756f1a4c7fe0d4b9bfdff1442759a602637d82179e6346e45ddd5e83. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZK6Q2525691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5317b6dfa5bee87660c9e1c815a3901fd0892f6c3dfbc9660477ed05036f71. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6Q2525692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a5ffbbc95d8e00803a17b27f73cac2bf7a81fb12ed2ac88110781d692e9cfa. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZK6Q2525693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fc8a4fa8469766752acc7386ef84a9e9d2b3907b0fa7560e1d1a9603d6a2be. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZK6Q2525694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234e0eaa1fc907ff4bc0535326942356c00a35d1fa82537e030c8b0123668a86. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6Q2525695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151d10ba4054329ac6f36f963c121b0e5f38503bc8deb56a1c7daec17d780c63. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6Q2525696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf56d6c32a94d8d156a3c24de737775c407647c5e2435da14f5690f2b28e4e0. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZK6Q2525697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9182943aa44844ada1659047861715a223d97b04ada751d182c284c2381f52d3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6Q2525698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447c45fefe263b16543a666d441505b087e19e83aaa02bccb01d31e5e2783a18. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZK6Q2525699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a44be23e06097758a60a22f5cfa713339f793964935f2a984693a54a1d4b17. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWFJ2542535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23167e10b9d3ad839637b58aafc6bc6e2e632ae7769f559aaace65671a1a33b1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFJ2542536.