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 0x1cb0e9d13356b8130ebcebd4ea39a90b7438cb73b6daebda8a397188eed1a770. 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/bc0fd194-bc8d-4d4d-913d-67c722709122.json and https://artists.proofprofile.net/proofs/artist/bc0fd194-bc8d-4d4d-913d-67c722709122.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 0x6be97919890e1bd7d9861c6abbb88b346b8a87a49a7fe0135075ab2c516bca96. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBSMU3341790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81545e9c31db09ec64204f8c216ef565a8e45c762f4e044d4b2a023c2e76538e. 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/GBSMU3341792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41aefc86527384c84376b62092cea71036ebc9702d97058ce0c93b9fca7c6b02. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:44:46Z), 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/GBSMU3341796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206eedb7100de6d213d47572d4f8b4374cf0ea894b271c331c3c71af100a9f7a. 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/GBSMU3341797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973a093712af4f4192aa96e4b4db6390f96b6a5b07439e0f088e2f36764b2369. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/GBSMU3341798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496d6506974ece495c5c0f9540d16338d4e5e61ecc3d802339d2d5524836538c. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:26:21Z), 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/GBSMU3341801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1f65ac1bb116ac43d374a0fbf3f392cb8480db7bf021ca2f04c1c652e5216f. 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/GBSMU3341803.
Una Extraña Mezcla de Sabiduría e Ignorancia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817bfe6f92d05706c5c9ee307e3492a7dee10108f47fe077977fb7d3f56b46ee. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBSMU3342109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cd1da9c873de00080b0451548c14f1588188c1f591dd1e0e6c3b35a9252ff3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:14:53Z), 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/GBSMU3342170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb63b24c15135a9fa99b103861ee0ef6fab074b46fd08c2201e4d04353c7ff47. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:52:11Z), 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/GBSMU3342171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c236166ae1d596d55bcee5494e773054894ffe2754b44e04e98fddd6ad36a18. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GBSMU3342175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf622e1ea939fcb170df4c9b848c4ea57bb6c56f1c85e60acf4391cd7ada3e6b5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBSMU3342179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55a63a155bb8035e9a13d01a0b92e300845dcc5d33c6eae39387830c7f87216. 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/GBSMU3342181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7e12383c4420f28737d45e2ee28069774d808c82ad44d45759434286f53ad8. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBSMU3474716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a5bdb11bce3b15f7b5eddcb24e45237e41bb2c7dcc9a1445098a450ffe50d3. 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/GBSMU3474720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2821865d28ec42fc29892fbf88f7d917fe474db1c1a65d1d6f4d016af9cca5. 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/GBSMU3474725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae25240d6f7e35dd08ef1f13ccaf04edb6869a0ee4b39ec61b2e3f0dc66f1821. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBSMU3344977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1b028b63abef78455b3b8a950ed3dba4058b3b63aa34cdfbc9b6c386503d6c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBSMU3344981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d33a90343d1cfe3d1ea49943ad50d489d75cb8e5141701bcf336356650d9e4e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:28:39Z), 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/GBSMU3344972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1b028b63abef78455b3b8a950ed3dba4058b3b63aa34cdfbc9b6c386503d6c. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/GBSMU3344981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a065db7b1363700aa4544e88318f35692dbe34309f9b56159f89e1362a22f91. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBSMU3345059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eac4bc3dcc181ac04f56058d9f90460e5add526186aaf6a98c4295df0e2da4e. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/GBSMU3345060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a0d1104e83cb3a2f9b2fd03586aaa9e462a79525f000c340eb543bc11d0bbb. 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/ES71G1709379.