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 0xf67d60edc6a23e58f94043db43cc0137393fe9ce14485e7eab43dbb80d05e030. 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/89139a35-03b1-4bf7-9f21-52349dcafaf7.json and https://artists.proofprofile.net/proofs/artist/89139a35-03b1-4bf7-9f21-52349dcafaf7.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 0x61d477e20e6a03d2c6ed8afea7ba1d6037ec50195bd53ebe7f6199d6d5e2068e. 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/USCGH2228796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe507aeaf4133e47bba45356da9f06b7f43611e7cf328ad592b85e575bb9d1884. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USCGH2228797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93472b2bfc26abae8cd55739ddbf086dc8acf59808f9b61a45a28e48f7e6e25d. 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/USCGH2228798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8cc912ecfa508ca570a815dc4eb90c1ae33bab0ccc0bc37aebfd991ede36d6. 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/USCGH2228801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc662b9f14c3c2e62d75d7c2065791f1082b4056be6613fcb622e2d8c713a9d51. 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/USHM82270739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ee15fe944367cc3191e93d7d9b9de58eb2f9c2cca73beb86e65f0f67d60fca. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:39:17Z), 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/QZMZ92304548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9fd48846924520fe833ead15a19e8996997e015546a39748348deb6965a86e. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZMZ92304549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6830c4d194cd9953d7addb2e9d0fdd4801262c0da841a5771ee03c5e9562364. 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/QZMZ92304550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf639b8746775a57d9a59db5b9253bb447a016d90766b3482e14cf707dfaa5ab6. 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/USDY42388683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77365f298d29f131749e799d4a2ebda27658f4da345babf98099018c550124b. 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/USDY42388685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e181ac8925d9bdb01f251757a7124831d6d4f4a16dc7e7e4a990a4b620524b. 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/USDY42388688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf36a4b7f38533b9ac8deb2f4670839d8694360d51f81fd69712d4746cfe0f01. 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/USCGH2401214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480e38123be0b9efca43d38ff3183785beb9bce4519eae50c65d89717944bb98. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USCGH2401216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e07aafc209d9f41895f0abdfec62a6ae88f8c7a58649b7442ccd2d4b48cd6d0. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:26:28Z), 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/USL4Q2435544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d04da4438037144cd7880d920650fbcbccacf096101b7a0a2b078d7f5d6d414. 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/QZN882527174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29adcbd62e831efb2991519c6916116b252a1c8b7719268f5e17c4ec48e575ef. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZN882553096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c362ec4be106496e25df50310a432af51a762af42f6fa5f75f1f62e5f460ab7. 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/QZN882553101.
Perdonarte ¿Para Qué? (Concierto De Lanzamiento)
Perdonarte ¿Para Qué? - Concierto De Lanzamiento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4334e2f3fc1561d55256991c71b9cf7d3b3081f43fb0128031f901a0c0c8f9. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/QZWDW2542543.
Mix Qué Bonito (Concierto De Lanzamiento)
Mix Qué Bonito - Concierto De Lanzamiento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a64628cb6be61a965f115dcb7cad52a47c8af543a4247e711ca53635ad22816. 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/QZWDW2543268.
Mix No Me Arrepiento (Concierto De Lanzamiento)
Mix No Me Arrepiento - Concierto De Lanzamiento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485fc0080447c9a5e59b3fcc31d8920ee8446c6cf1165fcd62ed59e5974e2a69. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:35:22Z), 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/QZWDW2543271.
Intro - Lejos De Ti (Concierto De Lanzamiento)
Intro - Lejos De Ti - Concierto De Lanzamiento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4be1f939f932fe58d2fa1f9a5605f6b3b82c430c7e3c891bb76edf5ac8b074. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:54Z), 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/QZWDW2543275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f776255ff8f36062d2b9277dc89e58fd316ac226d92ce3f700f7ef067dbb77. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWDW2545554.