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 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 0x1c1ca6964e294e3679fa178f63b3ac283287106ad5bfb1270d0ecadc0bda1d6f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). 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 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 0xdf0a83d6c5d10a38b25323e6008c4fd94781cbb619c4110616f456571bdf3293. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZNJX2498770.
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 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/QZMZ92577098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78b109394bff0060a83b39f040ce82dc1f58fd1180337116b44560f32831a96. 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/QZMZ92510509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7588e0f9d0d7d668aa0842930f9f82d921ab1508900259f82e99df37e1637817. 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/QZMZ92510910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b45b4f573d68ce421d29dfe90b938ad3d4f4b764c0d61b87b08962930cc07d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZGLM2580357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5007bf54c8f8516f94b6b8eb0c74716410a4d3a89d7dff26b15320408fbf06. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZW9L2446088.
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 0x37fe135bb65cb21768ee125807676014944024a05944274474318c33d37d8c4d. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZNJY2421498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e102d3cad9126135a6aaa5faae0bf2daebeb07cf426065678b1e844de2b1eb5. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/QZGLS2450155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8dc495ed92185793a462669c802eef31515205b35c2f6e1833286ae0f22980. 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/BKEME2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26313dc77d5f2ce4b054ba4534626e6c8ce921ef0152bbc21c3a4742881c6012. 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/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 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/QZNJY2358714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f78b733bdf8f58fbf1e08a19967e0b365c8360e194558a5d313de00e766fc8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BCB8K2300013.
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 0x41c7059818abea879e6115249ad3e9b812224ebd06f38a268dc6004adfd46cf1. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/QZW9M2257766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4025d60f6edc7b1c5366cb462a7ae399530813e512047cbdc05d8531ba30fc5. 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/QZTVM2241156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0362dd6c5ec06ba9190bc45b17d63e5403282a01fb2805504ec2f1ab31ea6fff. 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/NLRD52218918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955df13bf260d9995073ef18b69e91a1bf6107532ffc7de3ea55676644fe98ee. 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/NLRD52218917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862859da654a2fb8282597e5efb1856f585a6247c80dc1fc4127fb488325e844. 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/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 0x44337421fa3bb25ae5abb1ab295a8b44a459e818b46fe006b23979ad705bc2d6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US7VG2253403.
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.