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 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 0x1ae4e2bcb41826f25c28d0423c3afb995376445c851314aa9244eafe6bd4ef97. 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/dc521e6c-ace9-4433-826d-13c6d6e2f6d5.json and https://artists.proofprofile.net/proofs/artist/dc521e6c-ace9-4433-826d-13c6d6e2f6d5.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 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 0x88ebb38859222d5c020dc2cbb906b6f85ec88c63f783d14913c9a31b0e5a13e7. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/CH5750700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7d5bacff9c3d8e254711bcccd9630a0699b438cac5fb24645dd4b8ea795124. 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/CH5750700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed62b1c9ccd726b9e8cafb34865020c97a8ef371a0258e933df13643e48f7bd. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/CH5750800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261d5fe01888a3017779fac14cef9f8e789b25e494724745fd7fcf11d69a18b6. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/CH5750800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033208f4c0b25c9bd0c3e85dd5b3ebc754b70faf9909fb65d85c08c2dad45f88. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CH5750800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3167f8e5bfd9267fd4b7630050620d1b9e2edcdbeb368c71b1e0cc581db71916. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CH5750800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a8eafb30079d68aa36b80c360e9ca0eddad3e6864e9168000a16f125e4bf1b. 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/CH5750800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0a123bb84c7266a48422f68f9b8b440f93f9cc75b21d97ff4ba48c6154f4a8. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/CH5750800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad75194c9c40b9931e1e3fd2276e9d0468684beebebad8373f350fed0fa6abe. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/CH5750900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6b9983a1d5d91c2114e9ee68963b88eaa754b6e9fc9e50c3e07b9aa55612bd. 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/CH5750900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07e69df5d1fd225e61a375f56bbb7fe4cdac808305b1da9466ec2b7536ee654. 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/CH5750900034.
Sophisticated Balearic - Ibiza Café Chill Lounge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3c0cb3ef992b791e385425b6a89b42ee6d6b7a3cdf3257bc2c4188010316fe. 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/CH5751000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5a6589f2f25ad708644437cc10252e221fee3f08f7d16fd68ac63dd32984c0. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/CH5751000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acc22448196d599047c2fb5f3095316c60cb5a3961a7779df92be2800f7fd4b. 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/CH5751000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6746e83e0a78658ec969ee4ab6bd565b49d11713ddfb82d4e8ae6e5724b64053. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CH5751300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9578c9d35c322015f2ba26f68eee7bd2a705f0fb68c9677ece2e668de5dd93. 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/CH5751300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c0c3810ac04ce84da21e7aa43e77290a359023d82bd77bb2b8e5b2fba94f81. 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/CH5751300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fcd330efccfff849d23c362a0d1bbac315f069d6271e540b41ab05de6358d0. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/CH5751300064.
Twinpalms Phuket - Infinite Discovery & Delight, Vol. 1