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 0x491046e4955dad0b0e99a93b85ea700ebc8984b5aa54ed5c7fb947cb03c2c854. 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/3cb82cac-adcc-4d20-b861-6588171474b0.json and https://artists.proofprofile.net/proofs/artist/3cb82cac-adcc-4d20-b861-6588171474b0.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 0xa4bb368dcf480b038cead9c5a74783bd9bcc3c77cacdca8994b2da957887b3bd. 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/GB8HK1404726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67c2fbcb0805285e0c8b7fe3da1a44ae307048e154eb171528c3145462ade9d. 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/GB8HK1302692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc646aaad7dd8e062a9b2ac75b07be07122f3a5c4fb76825d9e8300dc16306e07. 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/GB8HK1302693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8e5f8292b31c512fe0ade0e3bdbe67c794d0efdc4fbb8f2cc9f147da9dc1a3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GB8HK1302694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5462b470872e3387ad919d3f41e08b2b9f3a86c1a67e5216ed5ded966bc82f0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GB8HK1302695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19ff2f347d852cfbea44a7ffdafbf98451a04a5083326a091a8cdb51ebcb914. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:02:53Z), 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/ES8241451802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194639b819a8b943cab0744e6d01da8eac0d660f111b651e49a4b7f9b13b4eb7. 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/ES8241451803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc205aaefeb8dff2e2ec529c30a4fa47c39a20df7621c392873dc88e031e1c0d3. 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/ES8241451812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3eeaec618874c91a2b5415e754883de71c3817d7392cbcfc74b1872d41e30b. 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/QMDA71548418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37caba352b67b0cc7bb03721bbba2cab84c2f33199ccc4068ca9356388c38c7. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:48:37Z), 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/QMDA71548420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d00b1098653c2f50a133c4cf200cbd6a6d170e4c72bd0caa6a95c3bc30f990. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMDA71548424.
Larga Vida al Infierno (Versión Comentada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5085defa8cfc72f99443b27afbf4d841606c629dbe8dc7c36c8457756e9fbaae. 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/ES71G1772600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528691f32b1aa1e3546ac8947c173c39210eacc3490892eb0d1f45c2f77cf83a. 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/ES71G1772599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb966ef52ad439b6cf63cd1efce1b53028ac1983ae6a6075d1b7fca60782db0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES71G1772597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72421fda67c57d6133881f52b142aa80a7af94c8d365d461589c25e2bde664d7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:44:57Z), 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/ES71G1772598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c4ae30526be6483f9f629fc806d0ab53107bf4da4ae16db21dbcb8e353f559. 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/ES71G1772594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a38d0cb4dbb9c40d3a818bbc9e745959bcac23dae3522da989a125530e76b9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES7312100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdbcb0f7ba425aafa4982ed4854cfcf74a03d3d9ba3b0cff22b35b53b094e73. 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/ES7312100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553f3885cfea211c46e1e6878f1c9ee204170e264177411c60cab26261388287. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/ES7312100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b0386e22a00ea5b4f8e8d06df9dba88a5f89c23cc36dd8a8e05b2c01ebb295. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:17:33Z), 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/ES7312100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ca9a8d4c0d5ef56297bc6b1e79b8a5c5d2655d2d938a985f7636e563512f79. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES7312300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261ac138d9de5eb4671fcc01862344ce820fa20abdbfde123b64aaf5e9e27992. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:55:10Z), 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/ES7312300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabf3ffb274cd2d56e1fc5b86575ad73683acc15ea5ea3da63db7d02c6d33ffc. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES7312300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0d1b309edc69b580b327ecac23f92dfa6439ca474ab0c6de6ec5f6237df5eb. 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/ES7312300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80592489227d94edb12be1dde06ecb72da9220a4e813c56ceb0367e47e6edefa. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:53:13Z), 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/ES7312500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a95da6bb666dd2598b0800016a97e45fae9182d1952d01dff8580199a9b4d75. 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/ES7312500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7128349ec0fb96eaa14b68a94cbadcfdeaeaaa298e6086087e2aa08a8bc7f829. 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/ES7312500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5440d34355ebaabd7c487ac032628b771c8209c732df53185016ce4afbb18679. 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/FR3JQ2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1700f354c7ce74533d3e293ca50b5c84874f2b46a479dcc82461428f29195acb. 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/ES31E2101561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3641cf2d6d263d0f668fdb117ac4bade3471a34c3b760fc233a7bcbe7f41620. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES31E2200551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00947e167411bd2c42e41f3f273811e2ca4d8b37e0074d133384228161e75070. 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/QMFMG1552876.
Europa Huele a Muerto: Homenaje a Flitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b55952b2992d42443c057bed22210042511d2335a8b1ac89222b704af3d61e3. 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/QM6P41873381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08d25121bb49b98c17e0a5d725fcf66d39b1168c46783ce19a4ef6966ca778d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM6P41873382.