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 0x7f00fd0e68da63c9be9057c8675f492135db2b1e3a0a89a964b54412486602e8. 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/ed2285b7-1760-435d-b2ab-639be6e9738b.json and https://artists.proofprofile.net/proofs/artist/ed2285b7-1760-435d-b2ab-639be6e9738b.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 0x668df1f53324e4bd4d0fc28637c3550a9640bb60b93ee700cdd03aaa27ba18eb. 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/FR96X1968542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440879420b714c1cc9b75e2964c5d89ab3fbff60c7c24b979a33e615a513d701. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/FR96X1968545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe4803f0250f6fd831effd283412ab0f609235b63eb6c15c10a23f77e03cda4. 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/FR59R1983566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4808f1bd8f2ad3bfcdea7705d3cd1921b3018df26d5d85dbbcc5513e5f1b73b5. 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/FR96X1868029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bca983cab6664fb0771185a103b6ee26f0aa787cfb4f8ff4df2c130828d9193. 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/FR10S1981538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad0779a4b85286248ba13b095a9203e3097afbbda11b48013f49095d51ab2be. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FR2X41925353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3ce28fb3aab1fbf524ab4b71ff7375413a01a39f81a13d117b8f78cbc85c1c. 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/FR2X41925355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5e02475860442f2eaa57bad3124cf623f7284dff661a73405f86c00824453c. 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/FR2X41925356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb38d1d434eabc245c6ae30f80cf9df84b2a6d20c3cf953a6046567cadf28ee. 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/FR10S1926205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3314d5e4559392a4ef50a75605b7ff24bde9a6173b68fcb6913f9dd49c31b93a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRX201841591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e723647b879699d9cc2e3eea9cd94c69fe13f64c05615b8992cdfa935c7259. 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/DGA062403042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9559017d47d86df2f1b1b311bdabe1fa454aec65254098035f44c13a9358c8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DGA0P2311171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92214fbd9061484f63a57a0e5616b3f8106ebba554d20effc038143d69e150f. 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/DGA052376912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8022b1c6157eba6cb002d36dc3fa1c8e7979e78685e6e2cd4e98a4525348a4e2. 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/QM4TW2328040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e672c206fc924250f1de95bf0f018bb3d9efc1a7db4ad149034fbe2c833d1a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX452281024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdadb28222e31459d50bc8e9e649d0b740da99bd33f1040a200677c52e241352. 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/FR96X2233002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ade640a7a0a9845ffebff2d789c92b52f70d122df857f174185a7afed2bbde8. 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/FR59R2240053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fcd0180de07a2979d2a4172772b19f35264f042b2a243661fdba6928fedd44. 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/FRX872161847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99b340497b6857af210702e12d7cdfe15ac53fad50765859836b2a96e0638a8. 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/FRX872161852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fcd0180de07a2979d2a4172772b19f35264f042b2a243661fdba6928fedd44. 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/FRX872161847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18a4b48589480eb50cf603e963c55f823def7dbc302681e727bd1cecacd4ea0. 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/FRX452197339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48739c3f6fb77f296668e8ef6b5d3aeeb616e7ae01fec2844ce1ad2d8ff4254. 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/FRX452120935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561e041d9c2465adf0341e46a9c9713368ebfd6e91e8a16ed5ece4250a88720e. 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/FR96X2183481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4aeaea633183332dd6920783fb6262d4029b2a6a4c778cb99509e4acc57b8e9. 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/FR59R2116248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fccdce3b579efbd01b80d7ce4a4d286887676cb2e3fb9da2c94a4043bd86595. 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/DGA052078337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59ad6fb403f5f3eaf38c3759c2e061acec0fbae27e5b88aa4137686e5fe1415. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DGA052018402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12050bf2decf86feefcd6b863089a554300d9a0aea7dce6a741e025319ab3cc. 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/FRX762073708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a4c2b813bc6facefd7c1beb3210ee1bbe5f6242b5bea96f2a15e63d026ea0f. 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/FRX282050487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd287c288717fb7690920a527fe1978bd000c156379cdd6b1cf5e4cd443e026a4. 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/FRX202056969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da541a820b25ebf8b063981c1a890259b5ceb32b5a6c29db1ac4e190229780f. 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/FRX452064416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d2d497616beec68de1adc3e69bb99556dc185e0632915c22b75c29f0024888. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/FR10S2029590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec3978fe739db2999fd8b42c90f5ce3a52f7b0e64faccf3d0786e815e5c1ac8. 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/FRX201981561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe4803f0250f6fd831effd283412ab0f609235b63eb6c15c10a23f77e03cda4. 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/FR59R1983566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bca983cab6664fb0771185a103b6ee26f0aa787cfb4f8ff4df2c130828d9193. 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/FR10S1981538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3fc118ee9f1cf42899a0098b4cfd92dab82b984affbf005981e6bcc832b646. 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/FR10S2093706.