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 0x014303d0fb53bab9a049c91dc84b0eb48d6724becc75e18f9f30a07663ddfcce. 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/0007e19a-f63e-4883-97df-2995038d2558.json and https://artists.proofprofile.net/proofs/artist/0007e19a-f63e-4883-97df-2995038d2558.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 0x4566c751dd37be678673c287390507a9bcb877ca87b6c0dec58f7108cb831956. 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/UKP3G2303517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ca23267f6673b208a191fa7150f4453b13c4e58af572491bc9550f075dfca3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UKP3G2303532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ade2716e0f941020233d57f449b85ac9ba3ff33f358ac202822c138e8739ab. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UKP3G2303520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1578653953f777a3f56417a41d92a40133d2c2ab9438f31603612fd33c36c05a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/UKP3G2017722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0068c6fa0bd25ff7d5c6bad1b2ef87ede359979fe4a6cd4273335f39e4ffb8bc. 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/UKP3G2303786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e7ae9f62c09df93b2eb6984256a0e2f21c2c15a4e11e711d630305c24bf03c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:39:34Z), 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/UKP3G2303782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208e27d705097e29005895e140f27536928c67a510d9eb331aada3ad5a5dd820. 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/UKP3G2304066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196c1b37c31efadd3c9b5939841342fd06a3395a23cc56775975fe08bfba8ba8. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/UKP3G2304068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa716975cecd812b8169daf59da0096203e30fa0d7788e3fd66620e431d13e4a6. 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/UKP3G2304071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33737e14409b1578ce103dac749f6c491721840f19276e6a3c42720ab037f24d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/UKP3G2303992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429cba62bcd88fe12f6dc676739f546cd4f4444994646c89fee2126a0bbde537. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/UKP3G2304372.
Bebé Juan se Divierte en la Playa con Cuidado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bdf1ce65505f1facd4febea643c25fe21e00fba1e1c046933b724d3b753fd4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UKP3G2304385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ace6a5894f82e42f6c7da04150e079b2453ee2a0fc56a7dc7fefc223fc5c44. 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/UKP3G2304371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07575a29bee9b3dbfd43392a905c43d3fad40dde55c329d0cd64251867f81772. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/UKP3G2304368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff10cd9d2f3ec1cd689aeeeecd4942706206546af1ddeb8e9820702bafff3367. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/UKP3G2402507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d81aefa84929c6ec247eb9b446881b690d41e61a115248bc4b56f11899297b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UKP3G2402509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2e484a17b7ed7007474fa71ef8203b95ab122e7e1a93cc314dbc0ef6db6c76. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UKP3G2402508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c895fe724ee5755d90b97a6dab99982b41d1897b5e4f7d939722d6fb53f17d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/UKP3G2017737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad7c4d61a13f673c7316cb81c448e819b00cc52e2381bba66ce93aa084d3a6d. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/UKP3G2017775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7699b3678988ec71e0c765fd12450459cdf7cfebbfa4b4e480343f5ed86b9c44. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/UKP3G2017777.