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 0xcc6c5d4215121af55f39c6e48d14043748913871939ac8d0961780770be1b611. 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/cf5cd622-7234-4f12-acfd-7d25b96ab180.json and https://artists.proofprofile.net/proofs/artist/cf5cd622-7234-4f12-acfd-7d25b96ab180.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 0x48794570ffeaecb59d294f5fd7b86b5b18c1268cdf93be3825851262975a0087. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAHS2101222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15db59eca606af5d96f2a255cb311a318f20733a00b91cc6f8147540e8183877. 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/GBAHS2100596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2730990320f474b3fe12fefda112c5f4c917abad4356d6f18537013452b31e54. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKRPL1900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02dd29ae7e46221f7909eb5154b8edd7a54c9a03ab5128918057e0cc88cd4f2a. 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/UKRPL1900174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2730990320f474b3fe12fefda112c5f4c917abad4356d6f18537013452b31e54. 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/UKRPL1900078.
All About You (feat. Foster The People) - THAT KIND Remix
All About You (feat. Foster The People) [THAT KIND Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf3c9f72eef718e0f1130a79500d3ffbda2708dc84bbcda1a39536dc54051d6. 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/USAT22100992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41b95bf689869fe0f693826e09dc65aac1cf6c9b244a4b50bc55b7014c81d6b. 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/GBAHS2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41b95bf689869fe0f693826e09dc65aac1cf6c9b244a4b50bc55b7014c81d6b. 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/GBAHS2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150fe583e07f5a6bf08252702e49b5a6ac9b332110707a76edb9a463e96e9b35. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBAHS2001015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150fe583e07f5a6bf08252702e49b5a6ac9b332110707a76edb9a463e96e9b35. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/GBAHS2001015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7154b3e017e0b9141fa043020bc562cc6529dbcf58f20bc2a47b673be182bd6f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBAHS2000909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5905b1e1d91ae037a751cfe054e95fd3423420484d48030516d3cfc15003f92. 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/GBAHS2101077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41b95bf689869fe0f693826e09dc65aac1cf6c9b244a4b50bc55b7014c81d6b. 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/GBAHS2100019.