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 0x96c0be9fed2578498c6e59deeb83e72b2ddbd8b18a31069c4b235183db11282d. 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/5ab57fd9-3f45-44f5-a570-35c80b9dcecb.json and https://artists.proofprofile.net/proofs/artist/5ab57fd9-3f45-44f5-a570-35c80b9dcecb.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 0x4a16c1946efe173f39fabc1184cb2ea0bb1e137cef0eefe3f315ea63ca24d028. 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/GBUM72200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f767dc7028946d404f30ef90e8cba052b9f9e073a04dfb912c0f8009b2dac5. 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/GBLV62307670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac3c962873a215f66c66ec547090ebc40d6240f62741ab21d69743509b9093a. 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/GBCPZ2322429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3956bc7e5a8a4873a0f0dd640fc4ba1bf2edec739b2e80492d14f7b3cc02f02b. 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/UKACT2370316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16338e69fe7b3c10a2fd7790d4ca1b9ee514c91304277827a1468760acff7e4. 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/BXBK62300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee6ccefbbad83a81194a08a0865ec2792c7d301316a16de6b363d3076f09665. 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/NLQ8D2300240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3346890c49fb41ef635f4f04083ec52047de489a730c45b9d04d250f9f8167. 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/DES232300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09915bc6d6cb1eb52c023d9015af57a497529f425909e0ccbd9c24bdbf2213e4. 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/NLZ542200831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefde7513bc3a6d8e2ab8534d6224cf80c1db98aaaec7a3cb44375cac3c00c45. 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/NLZ542200297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59af983bef78da110a226f85c9ca40d2ac2234d364b9324946caef88a846fadc. 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/NLZ542200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5728757042f189b3561c468beef983750c8c719e70f9b06063f4ed2b2322fd6f. 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/FRX872180796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953e99b9deee6f05e592de50da01ab6b420ba085b29f82248b4b1343b1f58380. 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/FRX452122077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b5bca5e8c13254e3070b7086aca128fa7ce1360f07f2685d1ee059c3d1d56d. 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/FRX202156241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180d18f9dc4a5e230af381fefe6082417aceae51b191ab21a5ced9fa0f74cd2f. 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/FRX202156242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebbac3b39ad35a33cb1d44c78f5e0bd263961a9991f53f8b41c70e99f18f48e. 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/FRX202156244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb063ec882ac3fb06bf1ea667e182aeb8b9d4779815c02341f35cb0a5ea878065. 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/QM6N22170128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78953a15c8528501aaa317b241c03f4b238cd9ca51ca8321271ddd56de8f213f. 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/FR59R2123244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdded1654f3115c001889d0bb23d9d847a29729df9feeeb9219ad818d656f632. 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/FR59R2197440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4adcc57e2146b3e376aabbe84bf2d0ab9533bfb50e99791d1c850d4a5ee3d71. 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/FR2X42135323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0b801c2057829d43e98d1758d787e841752a042131c9642dfd06332248c2b5. 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/DGA062028307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13716a17983d4c6ccfbe6e83782dfa59749930e485e8c6fad7fddb8f02f8c85. 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/TCAFB2064106.
Colors of the Rainbow (Sesto Sento & Bizzare Contact Remix)
Colors of the Rainbow - Sesto Sento & Bizzare Contact Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d989d64faed242c58c212c9b7a958bf841c414635b37e0a0e2793a6ee7a9886. 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/BEIW12000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141673763a7c50c5f0ea324f5c8abb5d5f768829a56b437e3850097920e13c7f. 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/USDM32023801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2806edcfeecf4d8f3198d19eb07b23305b5df64ce89548c744d8aecc934193eb. 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/NLZ542000190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f96367e250f6e58e394ce2b4007694058a0948337e13ee3f74579235aab26e. 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/NLZ541901618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ee530fdb8886cce0cd4e45ef9c7c89b2ee6dbd020d83914522c56ecb5baff1. 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/UKACT2370317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6567103d14215dcddf567a87724c0ff5962b15724b5afc374e0ac48521a5b15d. 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/BKTP72500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59d9cb1bc3473205b0b575135d564a91004addb59198c0d1f7101a9b22378c4. 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/BKTP72500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98b87018c17aef284009d21dba06483e88e003e578a3016631b136e7e53ce4e. 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/BKTP72500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab3f3fd2e6693405b51c7f5035a89bc7394a2330d46f2cd274ed68ad4dfe8e7. 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/BKTP72500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86483b5437286022898ec6151a0c0190aee06e7440028651d437e8da8a0704a. 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/NLZ542400788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314fef7e74242957dea001ea2cb4a35de995f8b5fe20ec5bd9d7de18783eb1b5. 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/BRUM72401913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979ba32be7121d0f30f38de63b92e5a6abf8bf06f27fe6de267435021219e105. 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/ITFGO2400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75b7b28432e0416cd99bdfb5dfc29cffa8b8cf3eb851d905c38f20f449e80f2. 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/ITFGO2400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8eef26b108143e432d766b5f3333506e485802ebb17cc05462071df7c398b2. 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/BXBK62400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daaf34f50bb8d769bab80482acfb102961c06b321664a1cb6badf2df467fca6. 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/NLZ542302123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac3c962873a215f66c66ec547090ebc40d6240f62741ab21d69743509b9093a. 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/GBCPZ2322429.
Blind Side (feat. Patrik Jean) [Extended Mix]
Chupa (Sevenn Hybrid Techno Extended Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb063ec882ac3fb06bf1ea667e182aeb8b9d4779815c02341f35cb0a5ea878065. 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/QM6N22170128.