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 0x16174b5a178387cec6891a081f7790ef5ec9a074f7850cfffe6bc7c021aca757. 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/e5972eaf-5561-48ac-9bde-2ee2a3c921c7.json and https://artists.proofprofile.net/proofs/artist/e5972eaf-5561-48ac-9bde-2ee2a3c921c7.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 0x655952a18912aa81285205e7a02604ce9cc229961525e5b007295cf12dd66b3b. 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/QZVFR2301517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834482d37ff7ffc7a25ae37c7fd410221ef5398a112cfeeffb8d258582f86b6a. 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/QZZ4J2400389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6c697810c42db8c6599acca9b170cfb10e1752a19c47126be6160c36276461. 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/QZZ4J2400390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004383d14a1d9abc3585d48934b26f762285aa560e687e94114a7b368d879a21. 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/QZZ4J2500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbc2d770dd616728cf8758647274d1b5fb7371b264b0fb5b1d5a2326341c407. 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/QZZ4J2400136.
BORDERLINE PERSONALITY DISORDER - CLUB MIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37833aeb4e90c180f360440078a1120777fbdc4effaf6bdc9a899cdfc833169. 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/QZVFR2200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e78bc07688e74a1c75797882b3f0599626ed8a2ef76b3759d4a8f76900553d6. 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/QZVFR2200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4919636b878f2fc377529c24a01cc3b7ad45e218959c5cf1f0d691dde1ff54. 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/QZVFR2301643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae00249764abad73990faf02daae31a5b81791088e4f77bdacca114d6368851. 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/QZVFR2301646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae039c42f2edadef46fb744a2677467f1ad6943d586604bdb76bf2bd37d0fef. 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/QZVFR2301718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae00249764abad73990faf02daae31a5b81791088e4f77bdacca114d6368851. 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/QZVFR2301646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4919636b878f2fc377529c24a01cc3b7ad45e218959c5cf1f0d691dde1ff54. 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/QZVFR2301643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64f606301f6511af05f637b8c562a92c6506cf16ff1200b35fbff49b4885df1. 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/QZVFR2301523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77adc74d591c6c88feae81804f644c1b368af0b778b977eec92b3b0122186c8c. 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/QZVFR2301524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09f4f3681dc7d6de0d18a2b1d80ccb51b4f75121fda5906d8bf150aa6edd69b. 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/QZVFR2301525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b909aac920d0e4f121e711cccca7e2b0f6f02720127b59505c5a2c95b9dfa96. 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/QZVFR2301526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd034d0a834d1675e4840dafbcfcc2341a34006fd786141ee0e687b4183830324. 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/QZVFR2301527.