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 0x168279eb530714bffa1d7eecd79060c79a8c7259cad856ba49b14a07a67844e1. 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/df6e5c81-80c1-4224-9c24-5f4757f89b61.json and https://artists.proofprofile.net/proofs/artist/df6e5c81-80c1-4224-9c24-5f4757f89b61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cuanto Me Gusta Este Rancho, Vol. 3 (En Vivo)
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 0xd5cc8e81e09f3b1aeb9a5146447ce6f49d39cf27615bcd101c1dfb2b26b929e2. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QM6P42194173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889b8916bfc9c82cd9322315f9ef962763e742d75fa581790cdf405067a2c488. 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/QM6P42194175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9dc11f4c5d7c14de2be5226efa222420bccf88fda972f842512b536e9ebb24d. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QM6P42194180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a497ed4389b0ed14abbc9e12fcd57c86002ce3adefe711205873f3c69fa9c3. 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/QM6P42194181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4a2152f11fc4fc16d096e7321673e9f132c6047da9bdd206078dbff40d9cbd. 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/QM6P42194183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4238dddbc0cb6a189b4e2d9776d63244a45d5e642215f380c18397a6bfcbd8d6. 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/GBSMU3530143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d7d8aef3a4ad54a24adca20185afb36a34d7a75e67a657d9beb1695805180e. 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/GBSMU3530145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6965d0e26e46a2f2a04f4c2d939fa08a7b6b09c4c7e09ce0ab6a76860a1002a. 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/GBSMU3530148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21c210c29fd243c8b5902cb29baed4e09f61190e18aa01a08809e14ea5435b1. 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/GBSMU3530150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782374a4ac4edd5d3eb91d26bfc4f0120ccf4bb82d104ac5e68495c0a4c77ed3. 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/GBSMU3530159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05de166c0d794f88c12a1ac6a264e16a4ccf62ce776e1ab576d1c96106f2b66. 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/GBSMU3530162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d618c6b365a41f1b025b239fcf86dee931ea558d410e56e1e94802f91c97f60. 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/GBSMU3530165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69e935ac3dd1e7b71cea18b30d22789fcb8fd55eb67699cd62436dfb45cab21. 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/GBSMU3530167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24ac9ef5eb3bdf940e0995c61ef0a4c3075e7d4474e98a985154c3a75a61eca. 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/GBSMU3530183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc1b55fcf9973bf3e139b18fa9dbd61c78750d8cab7252f7a29cddf6874da68. 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/GBSMU3530187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fca9e773cb33b4d8d46e521217593ea06e1c03c55728b9cf7c67f21f3f0a3f6. 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/GBSMU3530189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839d371c765ab06d9bf95de7405fa6a3b1e2935852d12a89a49471c19fbe9690. 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/GBSMU3530192.