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 0xa053e9e557edc9166489c08d37e82bdf2c72ba4dd08985403214dd9c8746eeda. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f43a073-21d5-4e4c-b0f3-0132b28a73cc.json and https://artists.proofprofile.net/proofs/artist/7f43a073-21d5-4e4c-b0f3-0132b28a73cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Invisible Garden (Produced By DJ Brans)
Black Out In Church (cuts by DJ Soulbuck, prod. by Divine Drummah)
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 0x30c1e5a6201ce5ac078cc5b7a5d5b3ead6f4babde4d92b48c4909d7ef0377d62. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR5R02500423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6408733b0da95c2f0ae7c21a69a598977a6e95a263945d0ff898c948e2e388a4. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:55:22Z), 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/FR5R02500421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3aafc1bdab75900de8c497eda97b2efc3d2b0c2dd9f5c86bccf529a9ec9025. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:00:32Z), 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/FR5R02500422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778c4d9d57e0deaa79e28556444f633ab63ec638fa57999e95ee96c30e1ce5e4. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/FR5R02500425.
How Do It Feel (prod. by Apollo Brown, cuts by DJ Djaz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e92aeaf88c58a76df94ada430f19c2a4fc303d33653a2eae2d4bca9e859e42. 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/DELJ81913827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d1bfd28652cb9f001864e33006112b28c74689f45843dbfd82b50a21d9b09b. 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/USL4R1947317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209abac1a96a90fe785b120a0a8596d1dca3d07399efe50e74d10f24c9b5a126. 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/USL4R1947318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426e92547214c2533f427986e22279f28a27a0eca458cd5d88530df6113673de. 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/USL4R1947319.
Effiscienz Time (feat. Dirt Platoon, Fel Sweetenberg, Starvin B, Kimba & Nutso) [cuts by Dj Djaz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522569f9b9ad99697c2416db499a76d968b06cfb7a83f6b3389594825b01aa03. 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/FR6IU1500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50463485ee036f048a80ff0248cc76e1731a885c706181f73f103598ec7ff585. 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/FR9W11401204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d78ca7ef966b0eba4af2b6f9a005bd5845038be7e2ac4a45c1b86a153e75256. 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/FR9W11401207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3efe7bc564ce266bde24de117305af456ec90efe6f75d2c544b36b1e39935ef. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR6IU1500043.
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
’86 Ushers Anniversary Picnic (feat. Fel Sweetenberg) [prod. by Fel Sweetenberg]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5a2c29c1add88c428399b7bd5f0742f606dd755358cd1369fb84c6589156c2. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR6IU1500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82798afda2dad003e6c067342feedb88705b32c9a1588cd7c3794356eab6208. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FR9W11401206.