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 0xac3748e21f6e5037878c8c2b56b45f4744d2155b38690f0b42fad2174d98c1e4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/193c0c3e-1020-46dd-b313-b2b6f5f19692.json and https://artists.proofprofile.net/proofs/artist/193c0c3e-1020-46dd-b313-b2b6f5f19692.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 0x6b1770b752d01b51b9ee742551700631d5d1248e6e0015d51cde5a0c63507c48. 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/USHM91641760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d395e0aae2d1bc80ed63c9be832d64947de53223b281e116d53738ecbcc9c1. 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/USHM91641762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777ffb68ce65ad3cee8be5cf9500bba051aa08a265756fa38e8149eb58c5c6a5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USHM91641763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae709bd5e5362de12884c3dcc109d189f397000a1e2be505bffc45861b4909d3. 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/USCGJ1934814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f026fdf82ad9b3916d8924f4a5a847d4a15ab4cb8c80f6b91dea672d554f722. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGJ1934820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8df2c7c6cbf21d6644f6df80d029772821a4a917c3f7794a5ea896e09c3bd30. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USCGJ1934822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b546336a7a467ac0a559b7ed74f183baf7acf9aaa25568013d54df12390903f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:49:33Z), 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/DEK971410557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588423c467961aa3e6e31b214cc28a84a63fc2f0a4684392a64122e4dd37caca. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEK971410559.
Wer hot a Bier b'stellt (Wikinger Wasen Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cc8340ead82244a00c019d3b497140be154379e8648d39e06ac7109cfcb7e9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEZC62037923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ad410b2d61e5d9c84d6f8d82766e449ddbb65cabd0e99b9f9df79434230a3b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEZ522100345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b93482b2aa9fdd6a164f705166e0cccebc8233445c770c88292970a0526b94d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEZC62282732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73ad667a540c5a7969c15067b9e7c6840ec4b364e941d2c1906f50d96cee10d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEZC62431342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14121554ab4e8cb9acc98f7e7cadae817f4bc002608ae7da5c9073bd8e06ec62. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/DEZC62591332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04b559c4cd1b7b3818a0526119793c0880a8bb387b411a0464d5bac26787c4a. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/DEZC62599457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb106aa60131c32f9ec0d65513f907d9755a70a28ccc800306b72bec0e2c0bb27. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/DEZC62512527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c57dfb3247ce7ab3b129f35269eaa2fc9a766f91c73158140e5aab8e12a620. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USX9P2505164.