1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9bb87f4ee7bbc3185760ae0d259fe97be1a7b10512fdb8027259bbc84501e74b. 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/57e946d6-1a9c-472d-8be2-47384e2a61e5.json and https://artists.proofprofile.net/proofs/artist/57e946d6-1a9c-472d-8be2-47384e2a61e5.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 → block OTSBitcoinBlock must exist at that height 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 0x22bad44da5fc60129129c51467aff381ade8b68cd8314f6bb3c1d01a8cf44161. 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/DEZ901900797.
Staub & Tränen Teil II: ... zurück ins Licht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1b61a9d8bc343c81031d8dc7ccc4a6c2d396576f8937b30de1c1653e0efc8a. 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/DEZ902100685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba140361cc9662c78432ec55a1d5cc0f2016012bd41dea1d5bb1436ed3c29ba4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ902100687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07501cb9787b5cee7bddf7e339d15bc6c5af42d01c5baa3d22bfb7184864db68. 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/DEZ902100692.
Staub und Tränen - Teil 1: Aus der Asche...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1684205519ac5b5033531354165c8753ba39d18f6f106425d1f9d60df605280. 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/DEZ902000366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5649eb9aa7497db765a4f1db33326a98546043d1bfb4ebed9db115ab898aa2. 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/DEZ902000368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c4df98ab4b0922c361c9350f9ba6b2c50fc45fc895c4fbdef21cafc067ffbe. 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/DEZ901900171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc8bf9c32f9c1118a65bb356af51d80935673701e72aaf0a2b1590ed7d58587. 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/DEZ901900172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad795e8976f5f950a633388be087465d1e44a0d5a3e34fef010cf0a1fe9d860. 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/DEZ901900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0602189b5067440215d0dab054c3e9fd8e592aeb6dc8f35dc5eca19b79b8e275. 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/DEZ901900174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9071b859bf2ede54854c9155ff8c11b3d27131d4b61724a6979790103136e55d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ901900175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31b57b174b8924340ed18c1f7a2654c7dfca37f576e472e2daceb4d7bae49e9. 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/DEA451710620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5d570d4970868db5d2453bf496eaf428069e476434637dcf4f13b6402d8062. 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/DEA451710630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f15d7446ff2ff9b17f3dd8521c4096cae9fffbf0a1917607413f993f024c59. 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/DEA451710650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc312ef9807bc8ff23f99182b5da461b7f2d7a7f04f6397abf7c2f17fd5087fe7. 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/DEA451710660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99fcf4c90917bea91e479fab4b36cfa18e78c3308f4080f8b61bba4986c3033. 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/DEA451710670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5515da0ae8c5bfbcf7a69c6054e4379e35331646d97fd057f4b1b4cbf6a4f7. 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/DEA451710680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7ea99ddbf6b66e302cf57b9f05485216ef4f9fdabbcccece585022200c4456. 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/DEA451710690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdec1925081125a631236355e8e58e38d7c39c6c3b94ec1a1a14bfca24122f0. 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/DEA451710700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc747ebd481f96584f447c6853892b6e25d2766e7942c347202bedea826aab8f. 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/DEA451710710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1443436c7ac8c83befedbef63c1ea17ca5fdd2039bd73d775d4137342d2a6aa. 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/DEA451710730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ace3143b87313313760ebb92df565297a98e83737c825e0f96f41019e55e9cb. 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/DEA451710750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05974f21bc9ad99f6b478a3495fe6df2821adb743d57b3580ec778127f6aa19e. 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/DEA451608220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4b397800eb119666f38675b3953242f3f44f4c1f38ee07cbfd1e649e6766c6. 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/DEA451608270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a6010bbc5f45148f7e11a5fb763f8cd5232654d0016c2f34e976bbf40f01e8. 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/DEA451608320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78217a632a413b0c725b461fc2beee044d00b95d543b661cf6a2a66807ac3b9c. 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/DEA451608330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412521d16dc1d5da0f75e31e8364883d187261c6546959315a858c2b20f3f756. 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/DEA451504150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ac3e73dbf17c48d79758933f2da827706da97e7a977efac2fd23cd68ba5d0f. 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/DEA451504240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460b89038756957f6b2022281fcb7dc561021d93b4ab3f12edc8fef7d2fb05ec. 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/DEA451504250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1b61a9d8bc343c81031d8dc7ccc4a6c2d396576f8937b30de1c1653e0efc8a. 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/DEZ902100685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba140361cc9662c78432ec55a1d5cc0f2016012bd41dea1d5bb1436ed3c29ba4. 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/DEZ902100687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1684205519ac5b5033531354165c8753ba39d18f6f106425d1f9d60df605280. 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/DEZ902000366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5d570d4970868db5d2453bf496eaf428069e476434637dcf4f13b6402d8062. 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/DEA451710630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533079ae342f185a1b6f1c3099be599b3e6f3089421582cf52b3a17e23a743ba. 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/DEQ121750778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f15d7446ff2ff9b17f3dd8521c4096cae9fffbf0a1917607413f993f024c59. 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/DEA451710650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c84d388b2ca41dd2ab7b4eabfcfe17ca8de12b41f84e589ea342e2295612e38. 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/DEQ121753859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f767d8ce22c0ec97d10aceca81f652e7e0afe8e3197ea20a506106aa4b2bdd4. 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/DEQ121753861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e0a0db9bc3db89ebee75e8723c42cbbfc8343fa96fddb64de8b223bb354096. 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/DEQ121753862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84dac0ab187d181575db21165b0b0af5ff4884082017c3dbd21e538b6537d30. 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/DEQ121753863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c88817a5419e3af3456c4fd9b5147a9d3193190663984df595430562f277d77. 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/DEQ121753867.
Two face - Soulbound Remix / Das zweigesicht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8f8a739f2567470649c96cd11a44bed3459d7544e1991b381ad4aa1036c6cb. 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/DEQ121753870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63fa6070f3201bc0b5d572a4552984353892fc5db8c4285dc118c69641b3e50. 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/DEZ902100154.