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 0xd1c2e16dfd77ef09fc4b4a4fd71b60672eff6cb3b3d77e1af4de68a16a09a52e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48515dc9-dc33-4315-b0ac-6089039ac839.json and https://artists.proofprofile.net/proofs/artist/48515dc9-dc33-4315-b0ac-6089039ac839.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 0x5bd631ee4ef6c343b7896f5cc224fb502f269facbc52b0545fcad389cdd38c6c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCACW1755484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415507b33209acbd0b778de460277cfed810f3b5094b16451ecb24b005a38389. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:31:40Z), 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/TCADG1745327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50573190d9288f61425f5d8504f1c26e228aa28835f58e64c428b580208892b7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:30Z), 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/QM24S1813116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3713e3d5385733d43f58459b790c290ae4ab13291aa3cea742c6f87579c83d. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:00:42Z), 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/TCADU1826223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a3c6f20650a9c2f1f096e1d48f3b51f3da8fb36fc7d935b6f36cf5a54d6f71. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAHC2361768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623c12b7b340464a2c67b2fd7db12b3edc8f986231990640132c81f29dc39077. 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/CA5KR2542781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c536f5a5e65a02f4deac62e357bfee33b6672afd9ecc9898136774b175e022c. 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/USQX91900910.
Call You Mine (feat. Bebe Rexha) - Parker Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4042b53e6238050df9fa81ce144fdbff56265b1e90acdc507c409285ff781af. 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/USQX91901802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae529be8aeb4cdcbef227b42c4514a775fa8c8f195f527351aa48d3088a23f6. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USRC11903672.
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
All Nite (feat. E-40 & Too $hort) - Parker Remix
All Nite (feat. E-40 & Too $hort) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f982ce4c225f3c123fd33811bae20b0d733b4abfd2a3075687f7050481001d. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/GBKPL1783133.