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 0xc59e33233b21a647c51ab442af87a0266ff0f5d1f73d71acdc13a67efaafd409. 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/81a71500-0ca4-490a-9449-8a09566c2ae5.json and https://artists.proofprofile.net/proofs/artist/81a71500-0ca4-490a-9449-8a09566c2ae5.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 0x77bbd44be0ed6e46c9fcbcea266bd05b355877cc6a197f39109255086e8f1881. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UK9AA2306802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07ac42802f9dbb9b7e72570c2aab850d653906ec2cf6a8b51eb0e7889ff5a55. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/UK9AA2104702.
I Still Love You (DA TU & Impression Remix)
I Still Love You - DA TU & Impression Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb208f2a522b90aa4d90940a313964ec120ef1c9bdcff16880c72d64fe1a443e9. 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/UK9AA2408003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bbd44be0ed6e46c9fcbcea266bd05b355877cc6a197f39109255086e8f1881. 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/UK9AA2306802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe893e3abb24e788949484120c0644ae4d004c3e986a4f1dea76fa012bdf5fa1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GB8KE2416822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24964e4a31e03c4ecafb8a541914ab1d6ba28ae64cfc1b239532edfe0c90a152. 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/UK9AA2408201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9426768e771a91e4113276fe0ce77b8c4824fc23507cef1b4d675c771b4288. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLCK42403881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51167ea6335a954584787a418ce96ad0750674023dedb9148453c38f6ef6a6d7. 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/UK9AA2408002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418c3cfd8ffe0145e3807d31f62c3764ac9a0e0308e2f42d7f1926828f638b25. 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/UKNBR2400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383e006cdf2459c6c11a39fef44df981dfb52065569e79f35f6000edd3c62793. 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/GBKQU2411400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64b0236d48f7e5d94e410e2776809a7d5839a7ac6d7390df4b483d2d5131df1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLCK42235298.