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 0xa6035e40f979d3a728d84feb27bf4991452de6f0688837e6fdf67074b334f4ba. 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/3f813533-8083-4199-9c32-96bcabba3124.json and https://artists.proofprofile.net/proofs/artist/3f813533-8083-4199-9c32-96bcabba3124.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 0x20e70ca45909e4c2b733b87334e29d23d8fc411a005f1111e7395b7a1e5853db. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/AR5TB0100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59940c3a60ae16ae3d28ca75f9e7938ac1250d961c0be7b4a17a5447dd0890fe. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/AR5TB0700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5934830f54ee150bee4164436245ddbc4b6ed342483eb99ddf05c41172a2c89c. 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/AR5TB0700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2c778889cd496757127acbb00cbde2b36629e630d921617713edd928e48d68. 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/AR5TB1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b75be809b5c7a78350e8be8ca98db8f71d7ccbc49ac2e405ecde62a87adfe5. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/AR5TB1000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5647fdb77d32105e0e62e1a2285cfff6308b2c142706bdb702183f25ac0d7f7c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:08Z), 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/AR5TB1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920a2983f8deff272bae38c478739a6facf0b87fe7a5a1ec0752fc477ac50829. 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/AR5TB1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1d7a50aad74dd0e5de320812b240240bd00a13f4408ef4c202c89e7ea6a4c4. 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/AR5TB1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71210b47b071a2590274154e0c77146b14b10f4085982547672d04d1377c8a9. 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/AR5TB1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9862f2e1009fa0029459f43021a001d3f2db39195ca37c90111e45acd2f892d6. 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/ARC081800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db762611c0551c9b3031a703e0ed73984f06ab9d32518ce8cdff232fc3cb086. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/ARC081800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978a64f328ed2ce1de03a38c78f6d300680f12f6fb9498157bc83d2758c13a52. 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/ARC081800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfe5b1548b07523eb772e89cfeb58f097f4e6bfb0a2e257efad09fbb6279a11. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/ARC081800022.
Hay una Manera (En Vivo en el Teatro Opera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797617bdc86281aa6e1ad53deab65aa5d69f3ee2dd7a8cc306ae7c2086104475. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/ARC082000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52345634f61e1847236171be1cee4832199aaa06ddf4d9ae6fe851b3b5ed08d4. 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/ARC082100001.
Mi Barrio (En Vivo En El Teatro Broadway)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbb83d1d500b5caae0cda45abba8838634f0d4a26910a78419538085c55610e. 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/ARA492400171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29437514f4d68b029db647c534e9d56efb5fd1be1bf6d9102681b53818a71b17. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ARA492400172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd559c336b4468de232ed21aec654ef1a66d4fa09980c60bf21e35a2a8961f6bb. 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/ARA492400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3fd3ccf7d48f6cb7f6f2ca862b19ffe7d8944d87cd7975307fba0a6164fc43. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/ARA492400176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b10292fab8c4abed13be5d9e59864b856ca87e01044a2a83ea5a95f0ebd6af0. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ARA492400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071849e060410b2330746ddc5cdd2073f77116ef86ab507815de9a1f5f8fb858. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/ARA492400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1049bee62ac269ecbbc07939ad7d12968a70ed60a155399f62dbb15a4faaa897. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARA492400179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bdc39fc9314c823563bc8a11996c5fbe32d1267265106e05e46ab6a2e59555. 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/ARA492400180.