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 0xc935f4e72433283a467386f66fbf6f88550362a450bd77fbe215efdee472bb6e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f0d25d0-3356-45df-a209-16cfd0199823.json and https://artists.proofprofile.net/proofs/artist/9f0d25d0-3356-45df-a209-16cfd0199823.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 0x265d5096964b07b59bfe36d1d70467638a22a7fcd80c84230f5da2b9771934d8. 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/BX7DY2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc547e3aec0da2b8f83d8a6afc2d662cc967744b74e773e801b5e31a6c960dbb4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BCV112100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc3aa9ab627c7eef22085ef0b7827c063c4a37cdf36b25b82ff0374d1a373bb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BCV112100086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19378c2aab1c5aefc878b665cba4ac07671b90d958bce95e5b6eacfdc45606b9. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BCV112200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493bc2378f16206aa6789e2088b04405946665333649ecdeefb9fb2a1ee657b1. 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/BCV112200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4531664387db5d138a60d5b1790894935bac928b3e554b43dc9fc1e9f71a6c23. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BCV112300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba3d7ffcc11eb0959ff2f87903a5912646ef2713e7860b43965471c2bf866a7. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BKBSS2400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5e186bf3ea275a71f4a6f8f483124b15d02f02e6ce454595dfcbe63e8ee044. 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/BC22C2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e05f726cf32f9b4acac6a61ec5209a4b87eb4422b5db7affdbb19be311cdf2. 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/BRWMB2201151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d37461c2440f9c2596b6fdb665e07fdde14a6af7cdf87e636cd4b358ddd0fb1. 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/BRWMB2302028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d37461c2440f9c2596b6fdb665e07fdde14a6af7cdf87e636cd4b358ddd0fb1. 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/BRWMB2302028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e56c9a116ddaaf20598b795f2a4f60ca602d3639596de6a1744e86c76c6a77. 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/BKBSS2300359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf039a3b75e4a6eb0d2c00fdd1bbeff2e97e27315449c85900c66c8bb1843eccd. 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/BKBSS2300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610c1743f7091ca59eef0bb2b25f639690602a4226090fe5c07a6b695f4bc642. 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/BRUM72300075.
Parede Apanhando pra Cama (feat. DJ Yuri Martins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18e32b2cf894d635126db7057ecf6d330e5bf4919e16cbfecd4e08a8199ad81. 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/BRSME1801789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610c1743f7091ca59eef0bb2b25f639690602a4226090fe5c07a6b695f4bc642. 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/BRUM72300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709ab2a9d8e495e1954891cbbbd54f1660a34c3c3d28bd521b4da5b4ac2791ac. 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/BRUM72300288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610c1743f7091ca59eef0bb2b25f639690602a4226090fe5c07a6b695f4bc642. 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/BRUM72300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6056f55bb69d1ff516fb235cca5981b9a3feb5b8ec6afbb9cb18ff765b958b4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BXSW71900054.
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 0x3b2fe7c789251e2515684cf73d4f010416798a3ce68aa92b84c4f40bfe64f8af. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BXG6R2301012.