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 0x4a77aadfd39854af0c16ba33de103e07a3066e3b330e20731689ecc82d1d1626. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10cc8656-b8b9-4f59-bde8-69537777d648.json and https://artists.proofprofile.net/proofs/artist/10cc8656-b8b9-4f59-bde8-69537777d648.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 0x446b5b6b532fd26292dbdb63bfcf840dced220a96243b207520fa25c9b2e1e32. 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/ES18B1702730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024a800d80b570f9d5dd88212b30a57e84c3b47eb6e1f6ff45515a2c97e16265. 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/ES18B1702731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443983e5a385b3e25bff393a5cd4f783799bffef3f06aa28053302b510d28131. 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/ES18B1702732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df5259158861aef14fad4c6d8ead34d3e46911619ee9769a7b2bb5afceb1e8d. 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/ES18B1702733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafdbe413ce172bacd46cadf3590e6bab16a281f30f3ed358430f6a14df58f96. 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/ES18B1702736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc677c7f6b76571d49414d1e25ceaf5dc4b100c3b7e50ff4b82a2bb0233e513. 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/ES18B1702741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f99d1883e9af46ff6041bce592e9a69d13c0135247e9aea9491f8304711e32. 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/ES18B1702742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357c4f8240325113467fa6fb25d69f49a44c419f69f843388fb9cac2fc47ff76. 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/ES18B1702745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c5d64832350b3f5eca5fce2b6cfe155717a57d4902fa7a1ec286b397a3e8c8. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ES18B1702735.
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 0x75abb10b3483ad87f57fc3e3f477b1b028e6f8b79763dca5e93a56a20771429d. 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/ES18B1501572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5f86416e48fa69bf048f932481486e44056ab8967141622c87576da59cbcc8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES18B1501576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df0d9727c88e6fa19fea7b82452519395be9251c63b5dc874d0164bb875d02d. 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/ES18B1501580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4ea841eb0936221c16fe6f1781ca0fabe8b22c3d0fc980041bfa574339999c. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/ES18B1501579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2310fbd4ed929430f35288416546a3b2cb7f3c091970b75812f4c059d38ec0. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ES18B1501571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b99427a6ff6487d39bbdddef5465e602f496ea666f11680a41291a85945888. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/ES18B1501573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa056560f4e3739b194f864d886893081cd0dc0d5c71f3ad844f51e0d704c55. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ES18B1501574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa9f9d40d4d85571b0e4fa0987400e7dbc2591f5827846a4c5cb48f04f8b019. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ES18B1501575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8945b4a349517db6143bc6c32838d2512a44c6f60b5e686aa3246ae4250821. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/ES18B1501577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7e0907eaf352f82f631699152d72a01b0cd906f34a5d3be83ce60e564fa4d5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ES18B1501578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae6917ec662afa0c03dbe2231383a1e09873b8558fb883e5f69430b496687d9. 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/GTA0A2301026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1ac4873ffbc5dfaba02f8dd918b73fd6d87daeb50613dd89ff1fb40f937286. 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/ES18B1703951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea280b82384fcbaf364367507f3fbccfc58c8d0ed34bc4ced59605ed92dcf51. 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/ES18B1703952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffde01e814fad0cb0fd0e1742cc3be2677253f12bb47886e769da7b1b218f09. 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/ES18B1703953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f2a249d43c4a6e716a01078361afaa227fa5763994d4c5f77fdc32c45f3eb1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES18B1703955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8941d33d385480725af344eaddc540a471511ddc115623056df07df30df74d4. 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/ES18B1703958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e221c48c238fd3ea0fe2b61a3a8e706b8fc32189e7e7301053f9870042c6a7. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ES18B1703954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf566f723a31cf3192316ba8e5d3ed03fb8c33cfeac4c06caf8f9cddf9b2b087. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/ES18B1703956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d1277d733fa24c1808c4cbfddae507cc7c894e239089476324d909665d688e. 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/ES18B2005215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b1297c0aa69415d0bd6fbba8113e37f6eab9e5d30bf03a95b5f67ab63c4c7f. 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/GTA101700013.
Esclavizarse (feat. Bacteria Soundsystem Crew)