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 0x8be39967e81f67fcf611a1c46087e387755cc09f1b3ec222c165efa77ea5ed9b. 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/ee619930-0823-4a69-bd30-6afa92e6a776.json and https://artists.proofprofile.net/proofs/artist/ee619930-0823-4a69-bd30-6afa92e6a776.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 0xd2f0339c3129433f1d11540a7f60cfe2444585bf0349ecb10ab77f7488cce50d. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/TCADB1756939.
Fall Of Innocence - Lee Burridge & Lost Desert Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a28baf57e5538b3912bc35d9e19dc95d9794fbeabf3436f65e017a0902ad287. 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/GBJX31816021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8034c457515a2f9d89bd95840be95824bbb1ae8cc7f36ba96c9cf0bf5257de. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/BEIR42000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868a088828a9649b1e0d39a3ab63fdd2a6b635e85ba798e61026094ea117e11a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/UKSP42000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17197946b6fe576099d54776d374957c5524af9fcc407bfc8ce39dfc587dffac. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/UKSP42000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a056a5615b8c61b74c4350a6f2b1f4e2473a789a8706739d35129f9bee71bcd. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/UKSP42000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e80350d7f114fae7e8bc194ab91da924d9caaa614b5945bdec966c069c8610. 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/UKSP42000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd195d6963b3dad5837a16fb3dce2d0ba9ade9ba5f440b10ad60869df5d1c22. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QM6P42353241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c5756f4bd8b55e4290fabbdbf773e067f455d5881dbeb5e557dcc7fb7130ef. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QM6P42353243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c5756f4bd8b55e4290fabbdbf773e067f455d5881dbeb5e557dcc7fb7130ef. 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/QM6P42353243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4e553daf75065fc4191e1c041300d7871302bf5307723345a51f2097533243. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMBZ92316300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0cf4f44b9a13e64b9ba24ba5eb37a08111953fd8e7a8f192067a6b70075159. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBEPM2402113.
When Sun Rises - Volen Sentir Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2465d20c36c6cc903b9fe826001683649288415a05967918b01d0ad71e347082. 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/QM4TW2518095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a99a703ee9912f2c0dca529e49cfd653b74c6586ef4d25a0b580b1a3fa960d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/BEIR42500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad11311fd03aaae26c859af44768ce7974417c17e308360e24ae4eb7d6c42e6. 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/QMBZ92364316.
Goodbye (Lee Burridge & Lost Desert Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacc7f4d429b1b2f622ae66391e93c8f0776764d6c128faa703ebac7584adfa5. 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/DEQ022120016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c85d3b3212b906a90a933425d53c9783d383fab0af088712d5efa2c7ccb70df. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBEPM2101605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a34414fe5ee8ecd52c18270cf6720a3da5fdd1eede34c486fbf5c81e52b037. 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/UKSP42100052.
The Call - Lost Desert Tranquil Days Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034126e1681b3f8bc6b8f007af67976038516a8ec1eaadc8e9c53bf58e1dd1b1. 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/US83Z2459425.
All Gone Ibiza: Pete Tong b2b Andrea Oliva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40688a8f9326b728eb9410e311cfc12e01836b0c3a52059275d061b5ef2f54b0. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEKB71546625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deb282b6dc804774912ea2f877e3e5885423f9d6353d53173c55c5600728b17. 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/BEIR42400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dfe931b7e220b3b636fed7c649665326f0d54eff261cde2fa20eb8c4390b15. 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/UKSP42000046.
New Life - Lost Desert's Don't Cry Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9b5206ecc59875a8d452e1d362f66c25df5e7158a912a8165710a6dd958a54. 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/QMFMF2113331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aa55dfd4cd9a04ea1fa67062beafa856211c33277033efc6328ad6ad314fbe. 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/US83Z2206800.