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 0xcbc9bb6d5186144f25145281fca223c3e9222ad87eb9d72788788c1336d3b5f8. 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/b5cb763e-dff8-43fd-8111-14d80b94f5ea.json and https://artists.proofprofile.net/proofs/artist/b5cb763e-dff8-43fd-8111-14d80b94f5ea.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 0xaad6bcc7a574ed8f07ae9a38acade997ffd150cc3689b5bf4c4e24670165a380. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:56:28Z), 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/TCACI1518851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b58b7ebe7164b58526fa57b0b911ec9783fc737fd3a2b4e514f7a2ceb6c7960. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCACI1518854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5351b4080eae7073f684b9f0e044c4002402b1a5cd03aaebfa698e6bc9128d72. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/TCACI1518860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629a63389e077b487fb5c70b6b2a75dc0e28000bb0d93b634c407439a38042a8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCACI1518861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a62ea27bcbd49bd4503585af5b16482f36c29fc6700732f5bbf786a908bb42e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACI1518863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0db4b6094ae1a299d19e72677cd38dd6df853c9d8c5d2991a1d6ec8c8e958a1. 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/TCACI1518865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28c583cab6e242813229a5eb3bf917588f1a072c9f5dfe60308a15db2a710f7. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCABW1486840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ac7a0ce355645a47dd6a08065c4476983975377539f4759d22e0b940a188e7. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TCABW1486842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5439453ce9cc71999a48688d5adb6e7b664ae80d41e3c32309d2b92910d58083. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:57:59Z), 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/TCABW1486845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29a2b622a917946da7c2d946abfcd93c688e3a1d5cc1fede0cb5321fc7030a4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:57:18Z), 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/TCABW1486846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4afac43c0c665ef62348db676b0e45c75958247df22a133e1c2ca3eb23db8a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCACH1548843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9016e674b112eae4df1c3fdb0e2a79421b8717fc32693b950bb32c233ef621. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/TCACH1548852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db526f61fe0741303feb81709cd07c84c8544934dbcfcf63d89cf28379b269b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAEP2042251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41c774c51484c3a7c40c7345d9176126ed47719713cfe6168ef1b1f5e2b46ba. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:09:17Z), 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/TCAFG2052095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43b393488c8efa1dd868173ceb74aa47070d91aaeae657a15ea39ee3d2246f9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAEK1951125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d5a830b514f610f3165bdc215ba4878607dbbacaf9aca3c66521f6a5bfbc4e. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/TCAFA2001894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52105aad23edcb2da548d9640871185e074cb00ab00873a9a74312bd04168c0c. 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/TCAFQ2189462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783977c95b0fea556dfd21cb21c70105c21a9bc7fec96096a559cf8a22c1e550. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZQAY2234827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e65f401c17c80ca95f31e1fe354ee0ff30fe85f7e8cb9dcaaa13c21134de7a4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:14:47Z), 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/QZMEP2320227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140a4bbe7f4856fbd2963691c85e63d32e143d78ec1558cb5a00fa133a9169eb. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPLS2355061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c40ac450025cc1472ee2939ce9068139e1fb96514f91cc6c68c9bd1d6843dc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAJJ2593398.
Si Acaso Se Le Olvida (feat. Rosa Karina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acf3156ebb673f5e3dfdafd4512a48c44e28551f1e05be8f55dda897c7fda46. 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/TCACA1499838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b84754ea5ba9e859694f16db8386bec50a1f6dfbb2b86431559b2ae5dc33eee. 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/QZQAY2164633.