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 0xef08a739c018b61757aed09d2a266661d0a2ba20213c46fbd995c7e9de351803. 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/f3b61c80-571c-49c2-a0c3-504b7f14cca4.json and https://artists.proofprofile.net/proofs/artist/f3b61c80-571c-49c2-a0c3-504b7f14cca4.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 0x5afaac9760a1800b6e71293290a52c0c5a3083b5e6a25c06f4e98cd6e6fe2977. 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/NL4VT2100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cc7f548748373b0f2209adac8798da1992227ba0c4351f6f521ff756b26ac7. 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/NL4VT2100253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4c7e64377083426fe179e30b3999c08c1583104620f87204fd622448856c95. 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/NL4VT2100314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7de959674acbbb67436511b9cebdd0f46bcf0c13b694a1a7ed10dda2da237e3. 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/NL4VT2100315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea851de3dee7e08e32f42bb737db6a2d48fff6d29c11b42cd22994c033e4bdac. 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/NL4VT2100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4242e3828a76c111c2d9941a258dfe1d649bd9e5aafb010e79e26e26b3ecbff. 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/NL4VT2100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e1d60d0f83fc689a45b5af15e207c84a2625d4050a9b72f8114d81aa3be123. 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/NL4VT2100288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e339ac2b14b26f6f9f8481d47a3f9c84bd9de3e66395655b00e145a7e2ca49. 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/NL4VT2100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8398cf1e54a3d798aaf32998c1df9b79cb6771e8ffd6033ae37903940a6e68b. 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/NL4VT2100164.
Y.O.L.O (You Only Lie Once) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcff46e9dfc37a5630091dfbb88f24524b751f82f1b5aaabdbb488f2ead890c. 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/NL4VT2100165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8200e407bdca35c4d2c7748b28782ca524c2d436c13af282171bc52438852ba. 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/DEN062100963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8da17f117027657305c6b13b4213b29bd15cc04a19f9d6e9d4e78cf42933e50. 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/NL4VT2100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7467b081d2a0275cad044d5adc7d445a9cf4d8f66c5b111be47748fc43aa5512. 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/NL4VT2100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f94b408ff1f0b405b2b51cac30fa55a0fb1ef3820276355ba32a15353572c5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEN062300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761ad698729612b75f49173eed55e0dbeebab6d83c2a884a73e4b9d6b80a2d31. 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/DEMA61903532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffef9e190d938b000cfef445e2379fb4aaa71f400fe19fac9abf99603d8db28. 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/NL4VT2100298.
Ritmo De La Noche (Vamos A La Playa) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88143a5e1c8085b26f52e5113e7c709d8ae1ca68a6e4d1088e0c6f3b0f0fc35e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NL4VT2100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa43578bc8c5095ac4647e01625e95f6d52c08c21039208129ed889e10cd6c91. 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/NL4VT2100230.
Heaven Is A Place On Earth - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4796a4806acf1c82eb7fcee1358d90e1f22586f48e3498e46d5034a64560bc. 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/NL4VT2100231.