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 0x2f0cd92fd4a36dd7cb9857afc5aa1cf7c0ebb72384848fb717d9c6de12cf2b2c. 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/9ffbe7f7-719a-4c8a-802d-ff459e0c0175.json and https://artists.proofprofile.net/proofs/artist/9ffbe7f7-719a-4c8a-802d-ff459e0c0175.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mi Corazon Es Tu Hogar (Version Bachata)
La Historia de Mi Vida (Caminando en Fuego)
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 0x10e4009efcae6ecdf18ba69faeafe66b34192328e79f4a0e08f1d69130411330. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZMEP2089596.
No Me Vuelvo a Enamorar (Rumbo al Millón)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1f4d75e252f919c243bf69b35959918af6af7d566f09f45ef970d8d13f2101. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZNWQ2066448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb96d8ff28604caab5ebfe6bac3f613db478c6ba206ea2690b63f7ea40aab9fa. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZNWU2005801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d61e99877940fbf8ce491f528bef83d8543aba811258ea612b02e9aca84b9c7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFYY2174682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f43e9a742f28c06b952d79d18cbb48642d73b4f93c45d0fe7618aa9c7dff2e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZHN92156297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f85f71ac0628d1065ae53b0acea088364eabda17bdd10dc0b24d3dc4e768b1. 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/ES71G2129291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8baf41f5d3a7a5cdf0a5c5b9fd659e7c08818cadd2276677c59ecde3106126. 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/QZNWU2169598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10fee49e833c4cd9e31d2f0217ec19c88f52d2bd0885d275c4e1505d732c3e7. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZES72227255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2db669c595e960956d417bfcdacdd431a823ac424dba55c913cc364e4fe50f7. 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/QZMEP2286784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe960f56c8666b025cd0b68157f02a46a1be33219969cebf07ae35833d77e9cc0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTB52218002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6596a0998b541898f1bb054a5f589e0bfd507449ae26b6cf8c30316f44e02f3e. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZTBB2225085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71040c08a8b63eac8b41c67e2b8172be4576ee4c0b99f03723b126d181862921. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZDA72391468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff66e4b310654c48bcc77b470adf33398d69c44c0f68289c596985474794e52a. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZHNA2312742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc1bf9c68a34ceee556d15ba779bd0bc423fa0205ea4fe13cafc481471eb1ec. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6M2370118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e294f3a46c194a822c08d02444660b78898ad622607bcba629c3372b188915. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWU2374898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c795186ec3c3f9e9b321a34e356fe289ab85d73c75a38c7ba6a729d16a8ef1. 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/QZFZ32472892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63ff848fd7f07c3246161582f0d3bc1857e72b1cf60ea80e5564db51fada124. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZFZ32475335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe4897beee1dc4ae52f6a0105a070ab8fd98bb23a6a8c75caab1a8db6e615f2. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/QZNJX2477966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c670476f17321f4adbec755aa8a3c791fe25dedb76c80104161075280cafe7. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZNJX2477968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ac5f6d9ebaa00fd695ee6920198329975331e69c00ddc9a6c498cc4e5ae858. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNJY2448959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1127230f314ad8ebcf9fb1827ba71c2a2baf014df427bced4f2dc2655948edc1. 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/QZWFU2486854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a7ac9126359d4bf42139d094f21844d6e449872c945cfe9687625734f8334b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZ7K2469633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599e48135d2b9c637c4f00261c354c67cedcbdfa7888d2c3a2a03cac6cabfb55. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZZ7K2473094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997740ed0282a25422ad7dd9edb10a9b91b42400cf91d89837837ab96f25d600. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QT3F42438393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1dd9b649f4d8b2aee65d7c2b95db011dbe60624ce4af1b2bc2c01a9cd555b1. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QT3F42438394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd284f7dcb852e87a23f0620c4a9b794e511ff8fa28b4aa93f3d1f478b85a4ab0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QT3F42438395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae3f8adc24c14de3f5592baa0b272114bae2c3f24d53b9d7264bc9f6632f93d. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QZFYX2525300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe751a11b520529ad96e684ecc4986fda557ef580f321f382d782da5357262bbd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZGLM2550000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab10d487991300e2ed2f94e479511a8769836d90e3a45c9ed013673b31b42b8. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/QZNJV2574574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b528f0afcdb947ebff9b181e682a7ab2d34c3409db5d016fe76e0950665297. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNJV2584390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6591fecf4e54b140c8b74df056e8c04accd1349f272ae7ac5e79c3f4dcd7fcd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTB22517016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af0b9a13d102413b2bb15cfdd28abe60603ca94a968b32588f7fbaded546bde. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJY2557687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d495916fae279069c051bdb7644a35047db94a0a167d219877876b881e1773. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJY2557609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9291f011457bb8cc38ef5eec3ddd338ff2d36a73fae62b501fce18cb6982367. 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/QZNJY2566432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cf7d8fb515243b81aaec36fd1b3ab80b349663210395dde5c8b30d7d2b8b01. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZNJZ2571738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2e1d65dd70497981588ec52e8c2136c0c65e131783bf84f059f349cd87d746. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZNJZ2570665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d1044c7f79c43bf0b55e28be0fb3e5b0fbdc17f09df3afb2e73001ddcdd6b9. 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/US7VG2087879.