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 0x1c1ca6964e294e3679fa178f63b3ac283287106ad5bfb1270d0ecadc0bda1d6f. 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/79f574bc-eaf3-4a75-9d5d-34dd9b752e3d.json and https://artists.proofprofile.net/proofs/artist/79f574bc-eaf3-4a75-9d5d-34dd9b752e3d.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 0x9cc56eb66aaa165400161a582e62ed1f1fa597685c75af8a18c7687bc3e9a09c. 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/QZGLS2548277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a18872a7adf30799bf23288666ab383d39287634ee12a628cd78b69deb56cf. 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/AEA3A2211108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4b2001794d11afacabfd184ed347093218526d5c648bd7fa0b84f6fc1b035f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNJV2511193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6038c6ed433151a03c4f1042ed17612ad37289195169d8b541608d00807c3d. 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/QZMZ92577098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78b109394bff0060a83b39f040ce82dc1f58fd1180337116b44560f32831a96. 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/QZMZ92510509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7588e0f9d0d7d668aa0842930f9f82d921ab1508900259f82e99df37e1637817. 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/QZMZ92510910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa571c508a7fad05507211d99bd131bb989e8ef6d257e90e626bc270df5f58db5. 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/QZNJY2424304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8dc495ed92185793a462669c802eef31515205b35c2f6e1833286ae0f22980. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BKEME2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26313dc77d5f2ce4b054ba4534626e6c8ce921ef0152bbc21c3a4742881c6012. 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/QZGLM2422251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79f5e2e5cd2a6c4f33185437ca8d825f1fadb7e03b118a003e88226763b6cf3. 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/BC3PG2331074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc29a5a3ae18c3b9ac25bb167cf0de6f3f846a4ec22a4d6658827b4c25cd522d. 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/QZNJY2358714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d9128f45571521f58df1844c5a11bf927acae08fe2b40f5bf2f81fcb5986e0. 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/BCB8K2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0362dd6c5ec06ba9190bc45b17d63e5403282a01fb2805504ec2f1ab31ea6fff. 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/NLRD52218918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955df13bf260d9995073ef18b69e91a1bf6107532ffc7de3ea55676644fe98ee. 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/NLRD52218917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862859da654a2fb8282597e5efb1856f585a6247c80dc1fc4127fb488325e844. 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/BCB8K2200060.
Eu fico fraca (feat. Anderson Neiff, Dedé A+D1000 & Laryssa Real)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06fdb564ead810d81cedcb427c5bfb0c2edcbb157a464d505f55b14d57f86f9. 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/QZHN62249365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bea5a7c87fa0300592b92711fea1f3fdbc857b19200e306460e2ca11a1ea406. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZTPX2387503.