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 0x6fe1238ca2a15874b0e5a142c8784d2893cd17f210ee4089971e622a7edc5d56. 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/2959b689-d7c2-4856-b8e9-314a06bb4c8f.json and https://artists.proofprofile.net/proofs/artist/2959b689-d7c2-4856-b8e9-314a06bb4c8f.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 0xe4a9cd18293f3a56a73e5c6ad531f2c5ac84406c9b4f093fbb3f0cacc00720c6. 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/QZPLR2223231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e85f390b72adc03f489b13120cb3185c4a735129212e95d86bee416f82c33c2. 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/QZPLS2230819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2aefd22be2eabd498418786649a54cf2ccc71ff3cfc87534b9f240677452d2. 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/QZPLS2230820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcd6fec748e3993c20abe885255a3bebc8e7d4b8321c628517f11b277bb9f46. 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/QZPLS2230821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a9cd18293f3a56a73e5c6ad531f2c5ac84406c9b4f093fbb3f0cacc00720c6. 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/QZPLR2223231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0acea0dda503fd0abee531c969ff350f729ff0cb3f964a94f5399b3286d494f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPLS2230825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f957db77c262b9d4f2cf71c04ba8d263d354bec69c839ca8df46baca53557b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZPLS2230826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a5264b1db96efc35f610187be59590f88e35fd7075fa5a540120713e4c6df4. 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/QZPLS2230831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ce1e9df9c86c7cbdb8232e83bb5b97c2a1b5ba56c24fae5607c8c7eddbf7e2. 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/QZWFM2311745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114004c8c8aad366dcd0ea5506711f8cd50e506d6e4656dea2a1d12398c254ba. 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/QZWFM2311746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636deca9cdde9a632192cf6eb74e303c2ad6e334827aceb825184b1016637cf6. 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/QZWFM2311749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4dce4a32bfa0b157807d0053c3d7ba5122b5ce80c752daa572982f6255ffc2. 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/QZWFM2311750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162182590b34e5b82600943db4fb280e9b062be4e4d52dba0dc1b220390df7a1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWFM2311752.
Pyraboyz tape vol.3: CANCEL CULTURE MUSICK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ee668d99bcaff008c534067ec902961aa274ce3852a4b73dde4265f63b6e45. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZNWS2404105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22794f0c8953ce65d2ecdb33a681e5c71d1dd2d81994f8aecdd3aa58670c3622. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZNWS2404107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa118cedbf5ef1d87bb538e526084d4d16706d153ccf21f5446a162bea1893bc8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWS2404108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc465754078def5c262ca72e8f48bcd1c4571f3233b5596e0e099742faef77540. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZNWS2404109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1ac40025e153c8213451786a9b48e14ecad7cc8f185e325cb3c04314c84fcb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNWS2404115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8319e8a1cd19aed5e2b4a10c0447214f100eddac2ce8b85f1708fa3c1642ab4. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:28:05Z), 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/QZNWS2404117.
Pyraboyz tape vol.3: CANCEL CULTURE MUSICK (DELUXE)
Pyraboyz tape vol.3: CANCEL CULTURE REMIX MUSICK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea12f703de216f8f259fd1831148c458e8dff076f314ce50c590a462ff9470f1. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZDA52592305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa60777d8fbd9ca65a38a7b4f82a80bbdc967f2d6379568909c7ca05ba81cab. 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/QZTBC2589726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310bac6ccf0ef36100b768c56f9c81d54ea76e1cc3a11e8016bd386a4f96d9d6. 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/QT3FB2580980.