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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fd92b925abcdd49658f91ea4c161c616ee564f547236bb4a823ebb8a4870dc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/351fdd58-d721-4861-884f-5a77c785d742.json and https://artists.proofprofile.net/proofs/artist/351fdd58-d721-4861-884f-5a77c785d742.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2614753c366950b086dae92d08dd1f8c9a9c718c2e4cd5f574c98280ec38bde9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UK6821900371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12994402d3081916dee194ae61aea1e341d4faa5d1dccc6385f2523eb813bcb2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:12:50Z), 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/UK6821900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90b8da2573e2f2e0a67ffd83e9333f0e023522b6ca2736628cb13ebc1bfad83. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UK6821900375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6032fe7a6a78e6b2a7522909c44b6c53af58fe94ad5fa692b192d594d600d8d6. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/UK6821900376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefebeec7207b262555d8fa13909308d952593db8ad3eccd6d4aa7b72100056a5. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/UK6821900377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a470c83063cc35eb20df51404728d85e6b55f0474e529cbb882bdeaa813884. 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/UK6821900379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5c567c6ecc44f26ee62b75abc64aed446662189453afd7a51e309e3934a7fd. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/UK6821900380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d840671e2d3cebf8819638dbd821b554e99a412c3715b543464f0a54f04c6cd. 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/UK6821900381.
Ultima noapte de dragoste, întâia noapte de război
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95db34835d5070f24a092990e94cafcf4a2fc6922a3d2582464ab708979ef0cb. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/UK6821900383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610802fd144c85311ac95d7fffac09e9ca502515bf6b06e950515fff24219881. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UK6821900385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1a0009e4daa53465e01fb99ae1b87989d56e8564dd50194a2c8ef90694db98. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FRX202132104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f4d84cdbb009d0b61278ce598e3ba973c6521cccf892d9bf6411278ec8148b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FRX202203747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5990dd332514b00ebeaf5b0e8bab2d1f1619133d58d18cba348e8755a7a303fc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRX202290307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c1d99717e551a9dad0f27b4db6c957a7bfe2c6d2d8d9e670605488b2ba6c47. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX202290308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef12108d08703136c56133e77eec124c0d5edd7a6a595bae2d335812c819c92. 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/FRX202290310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c24564a53c34783982ba1b015f5f68a4a5f1cc181978fd03ee3d4576416edf. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/FRX202290311.
KINTSUKUROI @ Urbanist Sessions (Psihotrop Live @ Urbanist Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9f1b0d5e99bcb831d581eaeecf70149cc6dd7c0730ebff1ccca4758c86572c. 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/FRX452221931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad00dbef19b76ddfbd0d683582eff772d10a23e61713f5db7ed341f3745db2c6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DGA0S2487831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d68d1fd24c6bcd2d9a303a9610d40070c4ab99cd18ca6f44ac97b1d0e62906. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DGA0S2487832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99adb276b5a89d71dd8fc54acbe04e4470b94357d396e2d99f8df97ae73adcfa. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DGA0S2487833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241ba03d25c0f52f2096c8af81f77adbfc2fd23037a128dab0b35e5db0e0e9f7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DGA0S2487834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f52be799079fae8c5dbf923689121f65780296e4f22ccb74024973f171c8223. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DGA0S2487835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb106c116aaa0854a56667ab7607006b8fcf663c68f592bb379464929d1ca4fd. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/DGA0S2487836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe109bda9da1cb6ed397c15c9b06942b3321b82c6fad66035cf6ccb8764be0d09. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA0S2487838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3adf92e0730c2e30a13450ef8e5bec257dc2418161babdb93dbbc749e28d4e. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/DGA0S2487839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd566846e8841c1d41db18fecde1b0bf4879f242ce68f8730ac01a4f0e3cb01cd. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DGA0S2487840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9127405627f70a68c454e4f2ec0d3d34ba4defc1e976a839eb9ec1f7a7ed47. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:04:13Z), 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/DGA0S2487841.