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 0x53a41fda57681d869e3784c72ed0081bf0c68ecfb6122f45b86b75dcea3d157d. 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/81414328-4041-4cd8-b2ca-3816fba10cc8.json and https://artists.proofprofile.net/proofs/artist/81414328-4041-4cd8-b2ca-3816fba10cc8.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 0x3afe98d2817c64b83d1d0254cb98433e8ee30ae62131d85b445f4f9800c10b01. 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/GBLFP1533238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289fff0e10b0d34810c520a14d4046f63203719dad619c5acc12140ab0f8cfee. 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/QMPKX1743664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337f5efd74e1cc6577bbfb6f6203594f30f71abdc7b2f9b5336ac065727c5208. 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/QMPKX1760750.
Why You Gotta Make Me Do It - A Band Called Flash Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f876ed780f0f77975682716b759ecff597f5b4fd523f94f1738b9aa1788a28. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1710859.
When Did We Get So High? - inHarmony Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dbdcbabcc74231e0d112e40e9a0e947a059c01c87df77bc38fa00fbe167732. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:10:10Z), 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/QM2PV1710860.
Kitsuné Musique Mixed by Arona Mane (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cd7bab210185661014f1d3298371a7ff8e33dc7f410b6a30c62894d358bf4b. 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/FRU701900347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc583b6fc24d3e1b3abdef63f2b77f5f4d4d512fc050543738ca67a1d5e910e76. 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/AUNE31800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461f0b67fa0089e94a0b3c2c712ec629233a454b93d649f76defb0e774a0ff4c. 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/AUNE31600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e72fdfcaa37e567c380b8697f34b8b6197c4e0ecfb3b1b22f7976f05a8fb02a. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GBLFP1521059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7673198435735c9e2fe946d5be0830de6a1434cbf237cd79753337c9b8c34b70. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCABU1474051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a67bf228be2a095fd7b70a70285d2a665ece021ed17c43882cf76fe6f17437e. 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/FRU702000282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa0799c5936d657be7039c3736a10b80a66b2d6ff049376798b4e17a4695bc2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRU702000283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0058fa888e5a33f81d9a9099851b2b03d1a9780a7c4cbd2c22fc2ffaa07281c. 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/FRU702000284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd91a6c36cec61a56c7086cea474ffc713b54ab21247851eeb7400c0adc2010. 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/FRU702000286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8725a98c44a429356245e1cafc058be0f26e6cdf8e653029c781809ff83738f. 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/FRU702000287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7455b4666cf42643804ca762b599f06fba751fd8a5f7c80ea74f3a979eb9426b. 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/FRU702000289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed31ceee01780c358b316745c1b1bb49414d7057d16ee2a65e8338dfe6433f87. 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/FRU702000292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0799afc4cf3e36062fcfa5899f3f2cd68febf192b63758127ffaaaa442686850. 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/FRU702000293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ad632f3123ee6f423acac262c17c32f9ac4bebf0c40052c7b65c10b7a0535d. 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/FRU702000296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca6be2ac931ba0a80d7240350f9b14d4d4e96025288df0f7af2da43d9f2e6cc. 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/AUNE31500036.
Don't U Want Me (feat. Blair De Milo) - Tyler Touché Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29213ef02c8ef4cb0eb51d89da2139dfee7ca5d4e1c3efc33f7fa0c1c9919407. 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/AUNE31600001.
Kitsuné Musique Mixed by Eric Sharp (DJ Mix)