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 0x256baa71d1a93871d68edc28b4daad56795e8385db62788fe9248359865ff9bf. 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/dbbdc8e6-78ae-4620-9461-9a42343fbf71.json and https://artists.proofprofile.net/proofs/artist/dbbdc8e6-78ae-4620-9461-9a42343fbf71.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 0xc8e7503176ed7224ad4c42f0479abcf3f5e29b1f67c3cafbeb631d5cf35e2fb1. 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/US83Z1828822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570bc05545cf53142e3e3a163239b9fbcc20f1ef36d6fe58ec59747752bb805b. 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/US83Z1828821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55aa447b1f06530da87ac99a32ead28af521d37e06a3907f400db37cfb37402f. 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/JPB600121401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f1de640c11af56c54e722959db8eb76c6669dd371a6cdccbd03eb0b2f6a956. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB600146801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fefa4b031fd9c7bb486b647caeccdbd5c92675e72027e29579ab4652a693ea. 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/JPB600435501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d0dc3b89ad7edccdeccc11c95668c7c69fc9e1ba456c92044e807e07293b64. 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/JPB600302801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1135634b60a452169bcdbadee269436e4ade1832f835a25c3ec6b19f67b6565. 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/JPB600340302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0d1367d194be99267a745e0fd4f03e473ac2909d5d56bb0dc218cca0b0f457. 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/JPB300947907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288ba0edd83d06fdd537dcaf5343f155639a69895ff10fb803e3fec5f0624734. 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/JPB600347202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a150b4b84ccab4a0ad15ac830aa74208e7cb39f0566fc9b27991c704e9777a. 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/JPB600048201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc13d3ada2647f1ecf9d7067717aa7b9e5637ec86d668ee747e8273e79ca9e2. 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/JPB600966801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb953fa882bb0b8bd6f0666c8f838de7a6b3f4da608d1520f02b8ae36a824e846. 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/JPB601000801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53aeb3f7257b99a6b9a40eef2b19053d806443a045460ea1e1f4138dbce6ba78. 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/JPB600222301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeaec6e6c48bdf1f848034894bfde403959b254b441830564d4d1eefa8b98bf9. 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/JPB600977301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb314ff6a52ddc345a14738f200c313e6cee390340e25d33d59ab9d68bb69e35. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB600207001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c719cd4db330e3f501a7279aad8f1edd76b56637e780df6f311b6b61d06390f. 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/JPB600146901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a3b8c249a9cd6fd50a8c9304052b61e2056e08fb366abf38b2133ddd5a95dc. 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/US83Z1463752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9139ce3184386a7ca1da050b1712dac4d3344373e2060e967672e94ec7a97d1. 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/US83Z1471198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa58f9e43ac23ad7db8e12c3657927d538ab2078cb6dc3c285ba3a393dacf68e. 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/GBKQU1653963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ab003c63eb11b79cf055368ce5022725759b56a76fc4f5f1635190cc7bef90. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU1653968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75176c6c69ebf901b2be301a9916ef4ee0eed615c312e59b132561caa1ed3ab0. 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/GBKQU1653976.
Magic Island - Music for Balearic People, Vol. 5
People I'll Never Forget (Extended Mixes)