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 0x187ee80463ee124d11770a2ef60e80461ecaeddb8dca9d8bafe3060c8e1221c6. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/894b1746-7a6a-4349-8ced-72df11d53dfd.json and https://artists.proofprofile.net/proofs/artist/894b1746-7a6a-4349-8ced-72df11d53dfd.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 0x50403a250b2c68d4c7512e8d527dc0fcecf2a433e50d4f32c5cf08578ad6efea. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMSNZ1253674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd988bd669a350e98df79d57c6f35d8a06c419d23c21c52b8a489058bc974c76. 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/QMEU32013422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ccf19e2379c9d4d73b93ff0ae71bad7dee5191fd246de0f0bb5cfc140e186d. 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/USOM81150701.
Electric Counterpoint - Fast - Movement 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26a9dadf30db91029c20d3daf5642ebb8ca7088339051d711f23b5cc33eeb39. 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/USNO18917604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cf1909f9ef0741c4ff3db1363bd020d7ecef9ed8139ae19c8aa6aa311bab18. 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/AUXN21202024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e21b5b8e8d4143a9758e4107344102c08938073b5518b08e07b08c30363606. 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/US83Z2324465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbf009dff1b099c76cb451c9bd15998ebc813ef13c34562cb3abe7bf4e69c28. 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/US83Z2324467.
Introduction (Funk D'Void Remix) - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c55eb17d8d1e8b293dbf59bf1ca5631278ecef0eb81883cc406c70b27f542dc. 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/AUXN21726731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe2a951c9bba2001b8a2fda15d91c8d9002c0606480fa8173cba9c88356e2f8. 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/AUXN21726743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d40696752806229a7f8af691b1820e93d280e86012995300f908bfc126c3a8. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBBVL0301391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801e49f7884d5a0f3011efe4cb670f6b16b34c7560742656b079e7a9fcc11257. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBBVL0101121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e05bf979149fcde63b93e207f98083562f283ec0ff6fc0707e7f123ef230474. 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/GBBVL0400354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2988770e64124f626e281a1c9247673b753b43919edb7e14a92d6b5d2e2ae4ef. 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/GBBVL0400357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97e511354d5b1c0b020ea5b2710367edf5f7c0901fbec110bcf65c948277d23. 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/GBBVL0400355.
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 0xca6e85e3ca4f72fd902cf908275cc01c5c15f1c3aa2286563a59828aaf9aad10. 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/GBBVL0100231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56a1f8d5839183f89ed991c2c20a1b3f74e430ae08420614a85a461b2db51fa. 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/GBBVL0001021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa6ccea0a8baf8666ec24f12624aff1663a3e3fe653093d9a938c91eba93258. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBBVL0100232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd05687eb4db094587ac3815bd7120b946e3ddc042154d118a8e87794c55e65. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/GBBVL0100234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e44ddc989895d6cfe3d0ea69932801d5e2e8ec0bad7fa1a9169b25177a16152. 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/GBBVL0100235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb203ea9a93ff4ff65f43e6c6054d8a41cb548af511397ad05d1ee88a49d5d3ce. 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/GBBVL9600442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ee052dc6c5d5e0a5fe772179c969e28246dabb07cc95dcaf83b6271580fab7. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBBVL9700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2515a9a01d02cc6ec6486f01898617e8fb88a536d4d85c1c348f2035e9654b99. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/GBBVL9700521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21547c37340c861a366514c2386be941944e1d4034052a81c1de92d27ab60c3. 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/BEN581400146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2df152a044c6acb62934e651502d7690f5ba4c3e8ffae637e16a5febb3689b. 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/BEN581400147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7db2b8d74a87d214a17e00d26d55702845005ee26e125b46e5ed1622118d4eb. 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/GBBVL1103081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73467b533e194a27e72ef49a43c3a3cd47c51aacf12265bc55368c68df0da4ca. 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/GBBVL1103082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ebac776b2ff93abc6f8d1310d554bfbc649b2ceebbee751973765d5b2a9276. 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/GBDLP1500906.