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 0x973c2b2b43fdc83c09760792aaba1c7d8f6a9337e785d58a6ebf893e019b4a75. 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/a60cb750-9d15-4940-9f5a-cf82378c43fa.json and https://artists.proofprofile.net/proofs/artist/a60cb750-9d15-4940-9f5a-cf82378c43fa.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 0xda2558e05801b9c8647ab903ded08ad6906d901c7cc38d6f96f5b0966f01d5d2. 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/ITAD81800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fcc5ad0edd819af078a95350fbb1ec794bf6c53d85d8d4b28a0a4a78f3ac02. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ITAD82100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4a08dc8e12c20c910baa0bac9480000d79f20ebd892ae47fa027cf812e43bd. 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/ITAD82300098.
Deep House Lounge, Vol. 3 (Chillout Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5bcf1620e84ebf23612d602efe71a80000d566da3fb48305a669d3402a04ac. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/ITAD81800139.
Deep House Lounge, Vol. 2 (Chill Out Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2558e05801b9c8647ab903ded08ad6906d901c7cc38d6f96f5b0966f01d5d2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITAD81800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c47748cbd8ffce104470cf50fb5c9e14236a6af1ee333ee89c80963a18b322d. 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/ITAD81900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93293628701ae7637a4a23986adda1444d04f2a4b753281640773a64847700ae. 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/ITAD81500217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab745155381d1b9424f97b4ea3810bd344dde1b1fef2fe6ca7f56d4a55d9b0ae. 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/ITAD81500228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5bcf1620e84ebf23612d602efe71a80000d566da3fb48305a669d3402a04ac. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITAD81800139.
House Relax, Vol. 6 (Deep and Chill Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2558e05801b9c8647ab903ded08ad6906d901c7cc38d6f96f5b0966f01d5d2. 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/ITAD81800112.
Be Happy, Vol. 2 (Deep & Tropical House Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93293628701ae7637a4a23986adda1444d04f2a4b753281640773a64847700ae. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITAD81500217.
Sunset People - Mercer & Gissal Deep Mix
Deep House Vibes (New & Best Essential Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc8b2b11b0dccb7bb06177379b79d986633edd8560328c24b6ff5e0d689c402. 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/ITAD81401738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7020e6b0c581297107b9eda1967a1e7eed974a9d0d5737233b833b2e17f8e560. 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/ITAD81600032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b4888ac3753a41409e59e0bf5f98f592aa470065a8cd50e2ae01f87aa6f702. 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/ITAD81700020.
House Addicted (The Best of House and Nu Disco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc8b2b11b0dccb7bb06177379b79d986633edd8560328c24b6ff5e0d689c402. 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/ITAD81401738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b4888ac3753a41409e59e0bf5f98f592aa470065a8cd50e2ae01f87aa6f702. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/ITAD81700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcec3f704a45dc3437f4d7cf2f9e87cb17de780b5bbfa37cade09c8dafe4bfd9. 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/ITAD81800084.