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 0x5b1da2e47210ceae89aea1371aa36b80cab1c6f88f29e93c9773235f09c77464. 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/de159b52-84d5-4c23-9fe7-dff2851f64c9.json and https://artists.proofprofile.net/proofs/artist/de159b52-84d5-4c23-9fe7-dff2851f64c9.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 0xcaa950759ef8bf929c15c5cbfb39b288c36cc61f9d5f5396634874e5106c4cb8. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZTB42475233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231578a5240fbcc47e03e5fda0c8c9b435b938e909bdce2a9ad4222c28c72d97. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZTB42475224.
Whispers in the Cabaret (When I try to play Jazz)
Futuristic Dreamscape (Extended Version)
Rhythms of Digital Dynasty (Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582b595d2a3c8d1b9409c7f3d07285c8e559e6e6e160966341e834a62f951998. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFYZ2539871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18b934e2d409ee83fd152329b00cecb92d32781b7f692fe3230dfd7f72e6755. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZFYZ2539868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4217264980fa638fc179cb481c20db108ab43857310cb6b98d7dd4fed74c16ac. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZFYZ2539870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b129cda225e23785a1da8551fac219b3b8e008226e13c2c156fdde538ffcad4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZFYZ2539866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0606a76bb81afffaf9afa844fe881bed19659a34e258f97b8681678ddde55e. 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/QZDA82555713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed3498ecda09140378b04d708a399f8ef6e8567b418c8784ab0b7bfe2069a77. 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/QZFYX2590948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b4274375dddf3853e3313452b9d447638bb9bbae48a7216477446f7abf791f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZFYX2590949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69c60a00a1a923dc07d57a7f3c9080863e183ef5012482327f832d2e096cd88. 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/QZFYX2590950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace1b62109beb1467a355be7523e86a2935984d42238c62ed1a064337085aa9a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZFYX2590951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b97788b797451c6dcb1ba4da0ef0ee604b5d8fb02a660e72daae0ccd82f3de0. 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/QZFYX2590952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71139ebba300e7c34154e1591271eb12ea99d59d81c08021881a2fff15ea51f6. 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/QZFYX2590953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2c26ba3da2ce04cd5c55e98ff941f52de420a9cc0091b1e4bcf31cc4e43a9f. 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/QZFYX2590954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf076ee2ef1a706035517346939cbdb3c442c74a3bbf24e9ffa17834daaa56874. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZFYX2590955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1763c82d02019399f25a0386066fbab0adde236e85f065256b0541ad1ca61b4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZFYX2590956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb956e3f6cd7a208a101886d79e5fe26c4e1afc5cd18158f794e648faa1fc164e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZFYX2590957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c2858e3b59ef3085794966003ee50ad11cc5d2494ba6f1f43b36083be87ba1. 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/QZFYX2590958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b04c1072c8795a88af9625e7ca00865d08d99bb0b41bf349d65ea76b4958c7. 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/QZFYX2590959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ec4e1b9ef5aea85f437c46932b8f0d987d93beacb7990b7c94f5b813213b5c. 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/QZFYX2590960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccddd3752aca7ed4502f22302b018862ad848e6ca87c4aafd6bf0f2c545cd33e. 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/QZFYX2590961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed3498ecda09140378b04d708a399f8ef6e8567b418c8784ab0b7bfe2069a77. 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/QZFYX2590948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b4274375dddf3853e3313452b9d447638bb9bbae48a7216477446f7abf791f. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZFYX2590949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69c60a00a1a923dc07d57a7f3c9080863e183ef5012482327f832d2e096cd88. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZFYX2590950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace1b62109beb1467a355be7523e86a2935984d42238c62ed1a064337085aa9a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZFYX2590951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b97788b797451c6dcb1ba4da0ef0ee604b5d8fb02a660e72daae0ccd82f3de0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFYX2590952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71139ebba300e7c34154e1591271eb12ea99d59d81c08021881a2fff15ea51f6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFYX2590953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2c26ba3da2ce04cd5c55e98ff941f52de420a9cc0091b1e4bcf31cc4e43a9f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFYX2590954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf076ee2ef1a706035517346939cbdb3c442c74a3bbf24e9ffa17834daaa56874. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZFYX2590955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1763c82d02019399f25a0386066fbab0adde236e85f065256b0541ad1ca61b4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZFYX2590956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb956e3f6cd7a208a101886d79e5fe26c4e1afc5cd18158f794e648faa1fc164e. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZFYX2590957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c2858e3b59ef3085794966003ee50ad11cc5d2494ba6f1f43b36083be87ba1. 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/QZFYX2590958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b04c1072c8795a88af9625e7ca00865d08d99bb0b41bf349d65ea76b4958c7. 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/QZFYX2590959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ec4e1b9ef5aea85f437c46932b8f0d987d93beacb7990b7c94f5b813213b5c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZFYX2590960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccddd3752aca7ed4502f22302b018862ad848e6ca87c4aafd6bf0f2c545cd33e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFYX2590961.
Digital Dreams (from Bizarre World Of Soul album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace1b62109beb1467a355be7523e86a2935984d42238c62ed1a064337085aa9a. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/QZFYX2590951.