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 0x1631ba54c042031c55f5962e9c9c292428aa7ce2f0138dc42ea9019cd687db06. 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/2287e8ea-1637-4d04-952e-c74792985e0a.json and https://artists.proofprofile.net/proofs/artist/2287e8ea-1637-4d04-952e-c74792985e0a.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 0xa317335419202fad23f181dbb22a46191e47cc6f73b592dc70120f049cfadb27. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES71G1829392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1417211b025aafb62f8c2f7086f8ade1e20b6920821a320825a86ee107d745. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GBMA21926638.
TEMPANITO de HIELO "Delphinium Formosum"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe386a4027f78377b9349e3577698377a25131b6fd7a345d897f27cbbec6e8c5f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES71G2151042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c7d07cf9a094040e2af5bf636a86e2dd22df9f0f1a7a7d332ade84ffd44b83. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES71G2213889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2e3d71879492ed5f6f393ed5b996ec4f24de4959186b09c2f11cc649d94b06. 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/ES71G2305650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab31e58bf5872a3d1a95dc35715da32856b255a15e0b94c74974678ffef9ae5f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES71G2313856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe386a4027f78377b9349e3577698377a25131b6fd7a345d897f27cbbec6e8c5f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES71G2151042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c7d07cf9a094040e2af5bf636a86e2dd22df9f0f1a7a7d332ade84ffd44b83. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES71G2213889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50eddc6abc69d665bf7b0a92c45d79c777cf789029413b94a49d314ba972ad14. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:48Z), 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/ES71G2313149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2e3d71879492ed5f6f393ed5b996ec4f24de4959186b09c2f11cc649d94b06. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES71G2305650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd0d540a2d112f16b872ee727759db4f52aa1e8c94e544373f9fad3aff27d17. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES71G2312734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a40cce79feab152440ad584a70821e14cc2b096f63318d50c657d6f8aa9c30. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ES71G2418167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50299f1f90725f434d89aab6db86e5091ef9061e3ef085f88e3be268a95f38fd. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ES71G2423585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97ca30482aa5a6d8568203101330a2f716fb8ec7fbb05a09c5025e16a413c00. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM6P42544243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da89b7437c9885354474c09c6770b79a5fe89ea7fb4b1b3921d40b0f5eb2751. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QMBZ92591155.