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 0xfb00f34c27fd0e601826f07a76b8482be3231b2149f24fbb5db019169ef4c7b9. 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/fa592939-fae3-4643-b8d3-429e8c06c97f.json and https://artists.proofprofile.net/proofs/artist/fa592939-fae3-4643-b8d3-429e8c06c97f.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 0xa6e081aec81ae05bfe194b3899518382d2ca38be50b66238c640e5dbdbe9f589. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ES5021400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5adda88513698ae6e0010d350065f297e3f791975747e73b024483a0234d95d. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:01:53Z), 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/ES5021400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51136ac978b568d3c87b4576b13cc911f7779bd3dec70e9c3f115fc0d72f2ef. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:54:55Z), 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/ES5021400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f83cc72a63f98c62d09172504ac19a219bcbeed7ba23eb862aa2741148d8c5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:57:29Z), 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/ES5021400766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0543527b63ddebeb0e1c2bcc90dd9a4f774c31d264f18ff59122f76546785f27. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/ES5021701593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8773c161687ef376323d99993c94c51eac20004c94f650c12aaef1ada1a747ee. 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/ES5021701594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c642ba74c5f79f16f38ea16b8ed28f565263021840943fd28d95d243446c1f6. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ES5021701595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ea0c6b7abdfa2637853a7160fc2f3cd6bd05408422217214635d2c9ad2444d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:22Z), 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/ES5021701846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb437f2e1c3796e5df8b1d1cdd20814a2e4a6fa5a6757ed5c6c9ff10d00c2ede3. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ES5021701848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde06c629ce34cfa5228cc1b66964ff86cf00874acd6572e729d31fa960e33a05. 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/ES5021701849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e86e5eb5c9da7b88c582093494552788fba586dd575bae08ba802aa5703396f. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:26:36Z), 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/ES5021701851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77770496b94239a47e88f64d43a96360bf19541f2d663dbb4228485329ddf9c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:08:17Z), 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/ES5021702246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acd26b60d3ea09aa3293e8550d6a793a04c92c99c3fdf37192167ba97197ba4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES5021800825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca7171e246f4e2f9bfe119cc8a27aac72297ebde42e81c40cc2a0e5f37ddf68. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/ES5022100366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fbdd33271a92acc0bf1eaf189e0dc7e8de9bd8b0c542b6122b8d0938c98ae9. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:07:32Z), 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/ES5022100369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6773a987f96e10b1fb7e05830c59fed3e5c2cd822ead8dae0d153680112f0e28. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:43Z), 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/ES5022100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596564d522e9ea4e4ebad295712ac7b5f866164c8daadd9bfe03f7a7be9903ec. 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/ES5022101463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba04f63d115a31818d3af8f853c060fa2e0c7d589a94bfffba22c1e2ab9e1023. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES5022101466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ac2dcebfa95a9e03460d13efd30fecf235b2fd6fe31920a23416063755546e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ES5022101467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91b466f35123177466b5105627330329fc492b767f2b6e811fb75bea44117c9. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ES5022101468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64d4f7800f9045be881d4c33f2919a83a9af1d6858d63f200d621a5eed4f4c2. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/ES5022101469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827bbbb8b03b696ed8f04e7160ac4445e821325bfea91507d79b7b5a9f3829e6. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ES5022101470.
Rozando la eternidad (feat. Angel Stanich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0376aa71d05c09579c9f5c7d8171d1479193991c2339d877fd69cf7c418947fe. 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/ES5152001307.