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 0x329f2c2d429ccc89c3fe860b420ed2e9e438e505a8c7329c4b503e217a8f0059. 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/51c06cf0-1b42-4dbf-a688-71e0cdbad9f3.json and https://artists.proofprofile.net/proofs/artist/51c06cf0-1b42-4dbf-a688-71e0cdbad9f3.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 0x56d628edfd257b7d9134f7fa4b74c8b2549c9df8aff1c5a8befa37cb44196089. 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/QZHNB2493402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95c283b998f7255dfb3c5e6af894f2dba30d89fd39d4cc69898ac58ee77a2ce. 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/DEQ022382069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49418292727329de3240bac1f8847214ea700b30f7576ee4ecc84f00a7c49c6c. 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/DEQ022111949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8b7710df6e5e9016f59e3cf832f5b96b75df8a807c16ec938d458610372038. 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/DEQ022382067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a393e53cfa0f904ebf005f7528e9a2553b7777dcdcc0a0ce2bfc47894abb105. 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/CA5KR2004702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18991efb571c90deac431a901718f1f88d2c21110d24948c2f6375572933123. 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/CA5KR2004706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd1f7f9feda0b853c711dbd794ad8a63689634e9eacfc5248ca67ba5002f7f4. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/CA5KR2004711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859ac3d754c2d1b4d0c12a16dc507f46ef79484669b947b7fd99d63e6c47816d. 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/CA5KR2004701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd1053f8414d93cdf906a3557e3aea5745fd72e5b107199a92de483d5be38e7. 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/CA5KR2004708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cb4b7a368b25dc68a91ed4eb4c79db4206d87f5e54e4404ccf53f27bc8df51. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/CA5KR2004705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea21170cacf271d8073044bf590cd9cbdff41a14578be040bde694665359ce9. 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/CA5KR2004713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1d316d6ec5a217841d004c963bdf08c252b5c930249cbb272b4b2a4aaae33c. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/CA5KR2004697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f825bb33801f422cd80ea6d64edffb2473b032c6d0c6c2138fef7dd917c6b29. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CA5KR2004699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbdbd9724f28799345a693862634bf3b1c6894424515e4b038423f345f46f7c. 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/CA5KR2004704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae09fe2c7f6bd815042f91fbe1d6bbdaeae7eb342dcbd4d5182922b6b8035aab. 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/CA5KR2004707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84386f2e0eca15d1fb34fa69184a8d2b804e9f6c079fe75b1b0e271393275e1f. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/CA5KR2004709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cabe461b0dbb3abce4a2b94a73c3606ced0263573ee5ed2f4ddb943344429e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CA5KR2004700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f31bb9e31e4a74c78edaa673d333ed32fd95d16488ecf7755c7dd8e6bc3a775. 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/CA5KR2004712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335b1f2accaa58a936df74aa9866c274aab9260ad43f0c23dc1b6cc2c0b6c2f7. 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/CA5KR2004698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b010eda2cdffedb51aefc9ca9cffa429c5364eb4cb4dc403cae27e35dc6ba7. 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/DEQ022382068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8daa80db5436d749caac08e7e40bc22165d064e4380bf2e8b944ea879763a22. 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/DEQ022105759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d00eee8db26f8c4495f011d11ad37c6dc5c9f247c3aeae7d0e137534224cbe. 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/QZNWW2144464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280d1e21a2c9370407efe4b426d261d7361dcc2a928e273c22d87dc0e60d9ae3. 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/QZNWW2144466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedca401e6bb92896b294404ac73e438aa302650d1edbe35a70b843769f9c335c. 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/QZFYY2115713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0052182e583549a69cb4cd0a12227f33e46334d1a29584fcedff7bff34b5bfce. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZFYZ2282732.
Galactic Funk (Chirofafa Mix) (feat. Chirofafa)