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 0x8ea79269bd722acf4761fbda23465492c32858b4dd428d7d7340f42cbea2d69d. 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/5fefa828-b3a0-422d-ad30-2424ed31adb9.json and https://artists.proofprofile.net/proofs/artist/5fefa828-b3a0-422d-ad30-2424ed31adb9.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 0x313d8c0b0c7fe3807c4f451a7865077180fffe827144cf8728ee30e842fe1dce. 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/BXUGU1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd31c10cb9dd46cde8c7fa074e5c431b13b91d659f1a96de8ba3b94f345a0cef. 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/BXUGU1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccab72e0b9612a67b2e4ec3feb41b04ff91ba07c6b7ad8f7f490bfa57498f3c2. 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/BXUGU1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0993ea18d3fbbcf2f1f34b3283ebfd8879eea0b528019b76e402ecd33e4244. 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/BXUGU1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfc9d5815dce8be5e75a671e7c2e90fb9d61e33b5db4395e50f50537f35d0b5. 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/BXUGU1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2275edcbfdf43e266375f2f9cdc3592d53789d097122c10e47d3a378cb5f8139. 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/BXUGU1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9886f9aef22f26d6a3fc31e7ef1829bb5d509184696af0ed808a931ed6d6394e. 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/BXUGU1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012d7cf24dd8b57eb3785844ec3dfe9dae101c1b44bd7573265531b41eca050d. 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/BXUGU1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a63e0eb53f7536436333a6a92e6abded3e5ed8e64fefb3470786d90bd64113a. 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/BXUGU2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320f29e06d696b8fb4578e04c448885bbfa773777d595b5f73e610d1fe46757d. 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/BXUGU2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3825866b25f95e6e5fc3b7887583a52a268b41f84ee9d2cb81b5f57260e1d2c. 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/BX7MG2100083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58532eb4df4af06bd93b9951970c8eb02968647e0eb9599f54f271f604e5606a. 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/BX7MG2100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231d7d38ba8cac7df7d210955e4fbf5820eb00668fd48b6828e3e767fa42019b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BX7MG2100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d1c6aafa36927258b049a23f6dc91eb9391492751a0c70bd0a1ca5a1fb8ab6. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BX7MG2100086.
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 0x3557bbca7ed5699752c187e029c9415ad9f710ab4cc52cfec341e0badf244882. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BX7MG2100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b5b212f77a84958e9405a5c7026a2e8e6c751cdbb60ea02e75c33990064c63. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BX7MG2100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e8543f01652a22ce7ff48b415e93bf1eee3cfe1f7724e33c4aee8ef0423fe1. 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/BX7MG2100010.
Breve / Interlúdio 02 (Ao Vivo no Estúdio MangoLab)
Breve / Interlúdio 02 - Ao Vivo no Estúdio MangoLab
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c9a993c681e707d6ce2274e61ba6dd253ea6b88c0a70f58c822a29af99942e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BX7MG2000159.
Throwback / Katara (Ao Vivo no Estúdio MangoLab)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4ff7e5b28ddc1d63d573f945e945fa4f06ff95e737ee780b756f6a12bd5a7b. 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/BX7MG2000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf3150a821d69b750da477c8af8e7845066dd251089de3b474f755d597a7ca5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BX7MG2000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10c3540b93b0cbd37decef5ed5cea61ab6c0a3964940a1dad0bf9a15beafaf8. 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/BX7MG2000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee878b2e21ab82a879a4bf45b460751d4d1d0dac8ece7acacb3a4ca6e3ef143. 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/QZNMT2587995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c89e335536526b2c591383682b0c85a6cdcffd1403641f7dddb0ac9bb0787a. 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/BCIA32100002.