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 0x5887491cf1c6c1170af1e0446143a60c1cf25203bc70dc25d92d2c6c2d1b7082. 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/67f34bd1-79f1-436e-8e63-6507a0c3b594.json and https://artists.proofprofile.net/proofs/artist/67f34bd1-79f1-436e-8e63-6507a0c3b594.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 0x1f1f179f3f309f5bf786dafb50329f1d159bd685f5575ad3ae56360f8fc55425. 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/NLQ7C2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b04b16d4cc15526ceaa4cd65c88a0808ba92e3a1055d8a037f69d3ac6b023e7. 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/NLQ7C1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144b1ced6a1beb011a558eeb7a4d42e808cac146d294198fc58e0af20ee0e787. 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/NLQ7C1800002.
Nobody Else - Mr. Fries & Kandinsky Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1f6fc544181220a5f679ef5a618304c332affc8860ba790edc30cfbaa34b22. 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/NLQ7C1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b04b16d4cc15526ceaa4cd65c88a0808ba92e3a1055d8a037f69d3ac6b023e7. 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/NLQ7C1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23f64eb691f444cc1dcd6bb74ad9efa672c98577e7a252061e92342bd0b25f4. 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/DEY471615548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5eb778811fd82aa7edb9c719195ceff0b9dc5ce2fd96c22ff18c0394b967b2f. 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/DEY471615549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f76d857fe79ba7ddcf532061b8b6070ab38c6c1b71771d373ab3f3ffb1786c. 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/DEY471615550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d1a784a752ae5c87ef68a5207c1fb6874414b2e31ba0b681c8a6cac6de59d8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEY471615551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f88a073921b881f8d40b281b8f418c97bb96d1e0bc01edebe04636350d66d9. 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/DEY471615552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3256749332e86cf2f8b009b5b9cee199146a0e9f194bb28f29bd95a64c2c197. 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/GBFBC1601456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e172877222a2f00bdcca16eaf202d650503e982fdea48d28a392b8aef981ce4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBFBC1601458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c11b46a2b7cd5fdb54f1c4ff3aaef7d0d742c065ef9b167a83ad788db5ab990. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBFBC1601460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef29b84a514a63f6bf802ba162d1f9157b7ce6d165ac77f52e86d10b6fbf6b73. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEFG51400045.
Order To The Senses - Kornél Kovács Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe009e3f24bb43c4e774d5e6137653c222796a38ed7105a820b697bdb7773873c. 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/DEU671702015.