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 0x8ad968c5f2f8dac8d5c9d806c14bdec8d8a1458f8db311355d16fc146be9e2ec. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c45e3659-dd46-4d71-83c8-63aa99820120.json and https://artists.proofprofile.net/proofs/artist/c45e3659-dd46-4d71-83c8-63aa99820120.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 0xf2fa80d151093e90a7d7d898a917a33c6b88a3e81b1271a51df799bbf9bad737. 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/BRTRB2085056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bed48f0339c084064f3e5f75674756e155bb118e5de26929225916417f2abf7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRTRB2085057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f6298631a30f494efed89c521d822d2491ef69d4dae8db190ae35e385be954. 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/BRTRB2085058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa27e59d124c374c186012749e5f25b94559fa9e570135d6ac9051224ef7404. 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/BRTRB2085059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f2e5fa6e9f1aeac49c8ccbfb8c843cb2b43c97091164813e15de4e9ecdae88. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRTRB2085060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6b608daf83ec360fce711fd5ffd1363b36cf3ddb8d5d95f893438f001e8084. 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/BRTRB2085061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8715164206ea08743aa3e4463e13be71428453b9c1f3c60a5a660de7ea1bf120. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRTRB2085062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117ce2b254f62edd448c71249f2ec4878a21e2995053377505bdf4cc1a9b2e83. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRTRB2085063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033c44dbb45b00ebd6f6d6a7a89c9a2abc7a1b25379c74db1950eada97dee7ab. 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/BRTRB2085064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5d6382b39b167431a067edfb7d08308c5e863048cfe3fa0a6ae78d0c3ecc71. 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/BRTRB2085065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fcba4a57af8f509be0299814f3125c14ecfb91027e31580424df40512a3a3e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRTRB1911069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92460bb393d0ea510b3181115ac500162e5dba4dc6665168fb2fa86202a2d240. 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/BRTRB1911070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb136ca13caeeeca78c36f3550236102ce4c9fe50875393468b5a50eee65065d8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRTRB1911077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fc64577506df1661f70148981b037c4d72620b42ccb28ae754b448013a1138. 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/BRTRB1988226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9f643732470e27cb71e4a65ae220cd106e08aed16c87b3c6cfaf86b13b761b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ5AB1831206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49603daf2ec6f8305e07f260705744cf32fa2c348810c73f67fa2caa80273e8f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZ5AB1831208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed123caf3f0365c9fcb1d54c9ad7e4d5d7907dbf56d7a401eff9d89e3dbf5748. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZ5AB1831207.
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 0x263271a1d9e359a848fa6c7f90eda961ce7f0e28ee682c727c66f855d9650104. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/QZ5AB1831209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1e436a21b459fe69e51de96ad4279936e47c2a0440aab82b9c93f5575d172f. 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/QZ5AB1772975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd446f875e18d318749b14fedfef8d30f3500ac2e80b7ad30bb84a6ab69fcbc84. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BXIPO2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ca2e00a1685a376d88e5d4bea4a6095c5c3de49f1bdfbb812e51d967d506fc. 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/BXIPO2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644cb4600acda2bf81c3303b0c992aab29184e3f843c8e9b3b0644ef984918fb. 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/BXIPO2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efab3f1642cec61a8fdac941ffb52727fbaf0b100b4dc72d19ab029911d4e5f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BXIPO2000017.
Alice Guel & Pov3da * Bomba Pra Caralho (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b931fda41bdcc4fefb94c0921a854efbb876270e9eb12ea629475a3852a245. 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/BXIPO2000018.
Potyguara Bardo & Tinoc * Submissa (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd111b700fea3bf07f87180595d3534b3fd78701ce36f89a30a090ba962a4f7de. 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/BXIPO2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87bab9b53e86defb1dbca3c1f293bf777509c58326759efa5081e78e173d44b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXIPO2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0f766ecf60c1cc225ae43e026e0b04ae446005b69088ff713582d752e11a5c. 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/BXIPO2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b95f2c3a6351913301bf62206cb244892f1f66e26903babf20762acd997056. 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/BXIPO2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead875b03b19aafdf2e6325eebaaf4e302e5e000e28dd0810ff0d43f0a21d89c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BXIPO2000024.
Jup do Bairro & Sanvtto * Bixa Preta Parte 2 (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7107c60b3c5c22cef837915fb9acfd753cd8e1b5167dec87a48e32a519d43e9. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BXIPO2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af34a4388838688f0918f3fbcf5b895a8a39ea293236a463f5e8ee114cd8716. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHZ41956932.