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 0x4e2f408ed971ecbfcdfdf6facdfca3c28d4758c162a50b624f012311b7d3181f. 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/366eda88-81fc-4e26-93f4-534a1fc9269e.json and https://artists.proofprofile.net/proofs/artist/366eda88-81fc-4e26-93f4-534a1fc9269e.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 0x1b54a75bf973880bf82177e34f04326d1562eaaff736b86432769e13ec227d6c. 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/QMFME2276648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e94275eef444959d8741ff26fd2f4344fc80df158d6f549fb48b004da81cabf. 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/ITHD42000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297b044efdf3f5bebe34150bca72b7183df438ff5899415ff2a0fabaa5b976a5. 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/FRX282017506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d20816aa991faa16700185f8f219401b7a8e6e3e307bd70c2951954dd20966. 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/GBSMU7952661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0496fc00280507b8b75265126d88ca7421347b1288dc464c5287d3154cb1bc7c. 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/GBSMU6138614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768da51265447a15924e52b7af6f1103a90730f807378d6c41ae79ab18b8833b. 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/TCADT1891666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25945ad99d2da2611a4dd030c7a4334d31e5c2ee2ffd8b3ffae897c39ab397b5. 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/TCAFW2139513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9149533c89fd41d5c605b7338b3448e2f6ca390c8ec0777f3e45c76d4e0a783. 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/TCAFW2139521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee917aa21182f8bc176990ebe711581db8a6d2540f438a4d3fef1ce7a83caefe. 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/TCAFW2139526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fb4066c5fb14163d3abbdb52c7e4e233f6b579a9143652f183815165f2a43a. 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/TCAFW2139562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d7ed2bb81f108193ccc65e9cabed06bb92c02b164f1ff93a01c6aecdfe03b5. 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/TCAFW2139565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7392b1375c6bb6bde83347eed1402d76d6dcae2a799d3680c3c294033f4b90b. 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/TCAFW2139571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fad2721ba259eb0d48c57dff2afc89fdce2f3f4aa32be4268e3225efd83b001. 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/TCAFW2139575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ed762ac7d1f637d228797217e8730ab8e816b9881939420d19531f0be84870. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCAFW2139572.
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 0x8bed01e4bc66fdfc12a747f90433af2c3914304f68b29f8cbe2a470da881c23c. 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/QZPLR2432095.
The Tropical Club Night (Compiled by DJ Ralph von Richthoven)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8ae366623b9ef13ae81ef1b409a3da39bd781045eb9c97b6fed01c52f2a93e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/HUA361000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbbaa764f0c78e96cb0cf1fa5ec5695a1b6caef59d306b9e37c03ed45968918. 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/GBSXS1300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabff7bd203b840521653bce477c1592dfdcd4d929d5b0adff62a33844e748bf. 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/GBN6V1200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef4882e1544a08846e38b3d4f1549ac73f6890abdfee34beec7d40f42d81000. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GB9UU1300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974da2c7942e16b6c4e60336bd8f324bb009f80e6c48f2f22c064c006a30ecca. 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/NLMT41400593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1597f8d67e34e84e3616f59eabb8049f6539f3a3648fd602d827fd976dfcd6. 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/GBH5A1000367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767b93c671bda15b80f4ce62a91c8de9a31eeacd7ea6bd8418bcfde426d5b8e7. 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/USA2P2514516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecc605936b645bc6c6dd6465c52bea0e4a4a002295121473d6f042d049aba60. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAJB2429695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23b664d67f0fb5e06483074408e0eafc006c62dcf7c575d392fd64b55f5eeb7. 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/GX5MX2407890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2e72fca84f1396e241b62325c979f1c4de008e45874af8de3cb4898ca5660e. 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/GX5MX2431719.