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 0x3b0f718d7c706f218f759e36826fc5f1f195658affa6c0bd7dadf73f210fe5b4. 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/5b0b4f4f-6aad-4110-9f43-d990cab49016.json and https://artists.proofprofile.net/proofs/artist/5b0b4f4f-6aad-4110-9f43-d990cab49016.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fiesta Acústica Cheque Choco - Mix Disco
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 0xf7ec7600cee267d3e9b2d28448732556474e46dbaebc7a89b52af7be6147cda6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ESA011671556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefde015c7a8ffce32f6eda5cac76e82712d0bcef7addfa9e14b2f52fd1f9a1a0. 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/ESA011785060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04582a0925828f039324b3e1bd5eda90b04c9aea8bd82c90fb3eba7a1d5bf25b. 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/QZGLS2000719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb85b9c8a9e575395b5767c5a31dc0aa54ea3eb2d7ff19ff5d9d5676f2bfa7a. 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/QZHZ51954746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd425cadc0da63990e48b8098e3ea7b34b88d6f3054097ac34e126a2fa32822. 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/QZNJV2010315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7336de621efc8669f1e4c049ebf001d34dc4acfe522091c5ab7d18394d08995. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/ESA011671554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ec7600cee267d3e9b2d28448732556474e46dbaebc7a89b52af7be6147cda6. 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/ESA011671556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfc2da81e49285b8517a378483da62b6539459642034267b4ed4ec8c58296cc. 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/QZGLM1987065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57156dbc9ec2483e96e57a2fbc62feb13ac366f1cfb5a69a8c042ff2c4e79e2. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZNW72382025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17a5e9d814e542041b0f8c6d63dabc4ea9e7ea84a83385212bf56903de57381. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZWDW2446626.
Exótico Pa'l Mundo (feat. Leysong, Buay Press & Luis Eduardo Acústico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8467fe4cdbe55171240d80c31f36209cd8707bfc39bf42ad1efb9ad71f8a9c. 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/QZDYA1800125.
No Avanzan (feat. Luis Eduardo Acústico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0609b34847b37727498c8dfa3f0222010871776b368a69c11734de5eb3ace0ac. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZDYA1800279.
Más Que Amigos (feat. Buay Press, Robbie Vida, Luis Eduardo Acústico, El Vega & Dj Zaa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38e45d732b1c85489f14934b412ca84d849534d139d9996bbcf4ec766f56c01. 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/QZDYA1800285.