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 0x9321d184fd777c08816c62164ee5ee4e32fec0da6a8dd4954fc5d7f3253696ce. 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/e57f73af-8e69-45e0-8a99-ad7f540e04c5.json and https://artists.proofprofile.net/proofs/artist/e57f73af-8e69-45e0-8a99-ad7f540e04c5.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 0x3f98ddb8032ed48322371d0f545f3a3567eb65f663b21bddff0ab8360f3b238c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USDXS1600284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3be763b515c6007b1eb8ebd690785b718a6c03660bfabc5fd9415575af977a6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USDXS1600345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bfb111447a8bd1d5778d901107fe4ad19bb9fad482bf23acda1cd3c0e37b84. 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/USDXS1600349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b90e535c26d4c0a62c026e2dea554c29c8162d22e273aca8d134ebb5a57254. 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/USDXS1600347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5c46f0b6edc01b45e57b7efff8770bb9043dcad7d33304d30f7ad864a1facc. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:57:14Z), 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/USDXS1600346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f74c33461e8bb67495bd3615a4bf298c9f91e14f4798a7f6d5bd74446cb2ea6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:14:13Z), 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/USDXS1600348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25351e80928c5758a53a534e10c56a95d095981d130e2b99fd5569704afdc43b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USDXS1600836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f6713ea5698bd2e0217b7060fce718db2934b84ea66d74479c80d77eb96aa7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USDXS1700074.
Sinfonico Presenta: Me Compré un Full (Pinto Picasso Remix)
Sinfonico Presenta: Me Compré un Full - Pinto Picasso Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e733f60c7716915891eda6cb233ec25361ca13295e12c89dc8b78ccc4210cf. 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/QZ7R41851813.
Sinfonico Presenta: Me Compre Un Full (Pinto Picasso Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016157a407d47205381df80effe7feb8c7ddd79611b69f864a3041a664578e59. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZES81960146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa539678030cc3ccc8426000641ea6a02c90e6a843232afcfbe85d069318a3fee. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES91956899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d53736cfbc542ee3ee9b4c8a3b3a899ed1cb8aaf4e8bbe933314589c561950. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZHNC1931214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3c27937b2ceb8a34c7fdc880303d8a90751bfb8b1a5c956a89bd54e8e18230. 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/QZES52050277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b5763dc70e2f6f2938b934b715540ae39ce3f7ba9667763190ba2072920718. 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/QZNWQ2040752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b67bd81592e0759e7b4708e74247f662da9a46c0cbfa48e3f109eb6fe51d8cf. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/QZNWW2005311.
Latina Fever, Vol. 3 : Reggaeton, Bachata, Salsa (Pure Caliente Latin Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c8af2cbb48955b48fe1850e4a06cf536ce3ea12bf8e8117ac4771f58caac7b. 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/FR6F31925140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc37f5fc1c209a81d72594cf1b1f12782290afdeb794615f0bd972722fec2f10. 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/USCGH1745244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c1ef29a5fcb289815d392e1550a162075506d718312bfceee384c7b3dea179. 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/QMDA61810231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5159eb41e9d28ded5be05e1e1b2d91cda81a3949b612b050517a03ec7a8cec9. 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/QZ8LD1925435.