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 0x40f279c874fd7ac09d35fb49741891a1ddeeffccf5c77ccc216c47f193b74b93. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d9ffaaa-6bae-4bba-b711-61c923d2ce46.json and https://artists.proofprofile.net/proofs/artist/6d9ffaaa-6bae-4bba-b711-61c923d2ce46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Glory Days (feat. Hayley Kiyoko) [Spirix Remix]
Glory Days (feat. Hayley Kiyoko) - Spirix Remix
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 0x9dbe0e79511248d6276cf938662bf4899347b2116d1eafa43ad2e8102862d2c2. 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/USAT21703050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d42e011ae1c303eb84b971e086ff2e1803fc69d528c041e5261066abdc2330a. 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/GB2LD1900243.
Little Doubts (feat. Aviella) [TYNAN Remix]
Little Doubts (feat. Aviella) - TYNAN Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f7d1a0c395aab0d48c056a3d90b8febd0bcb28fc7c759a626fdd66834de874. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBSMU5099067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28db7bbc685d908ad69947ddb0628826ce2386d2d5d5b6207dccd7ebe9104ad. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QMEZE1822939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ddec34a4746d93b962894494dd61994b529b9483aa315c5b76356312e602e3. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/GBSMU4754828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf245fb976b31dee9e8bb9068adf58b7b045eb05bd576253685a3ebe675090e9f. 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/GBSMU4754832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290e4ed85d81866b1f2badc11cdd2624c2600ea6ae4726e1c6c9548dbae799b1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBSMU4754824.
Little Doubts (feat. Aviella) [Crystal Knives Remix]
Little Doubts (feat. Aviella) - Crystal Knives Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fb18af8abd081dfe806d0e78c6393f179bcab5caec409c230be172f60151a1. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/GBSMU4754821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935264610364c49e5eecb6baf9df1b0504639b5792fe47e7563f83ec4a473c72. 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/GBSMU4660683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5a35bcff4e5de9ad57eca6f275b17161448a0dfc4e232b5fffdcb957ff1f5c. 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/USAT21702506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc6db666f5949de3ad4072b372c2c7f02bdc68a2f87854b33726c50907ccc47. 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/NLZ541601151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff6952a6b6663551da7e12ce681b988491f89585ae9d9eec7431334ca0a73c8. 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/TCACM1657553.
Call on Me - Edwynn x Tikal x Spirix Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd088fac36b3d254c70e2d7c6dd05560393479f6c537b2d5e997ed6df26b5a52. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/AUCN31209092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b557847d41763f57c3241ccdf0d73a6bc44970c1df302fe149f3ba756b828eb. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/CAUM81800170.