thumb|right|A badge of the club. Optimo Espacio ('Optimum Space') was a weekly Sunday-night club based in Glasgow, Scotland at the Sub Club on Jamaica Street, as well as a collective moniker for the
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 0xc11d206f0c45984d5c6fd9923616c07b9488e1b2be293fc8a2c12d4838ebc50d. 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/2938bc47-ea52-4d8e-994c-7fdade3c2192.json and https://artists.proofprofile.net/proofs/artist/2938bc47-ea52-4d8e-994c-7fdade3c2192.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 0x35d1326645cfcdf8c682caa4bdcb9104da86c73e8878a874e36ec517eee72136. 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/DEU670901267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61e3afaa9f5c05d224d837d8b1c84e641fd6428b3486e80e367d8eda54ef81f. 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/DEU670901272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9dcb772c611af1f382338e70b381a315aaae3132ad73d8b968255da6d45cf2. 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/DEU670901278.
Moving Like A Train - Smith N Hack Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f157e1cd87e6fd6cdfc01149d0fd09a7b1b7bef0ae3e058ec6b43a5bfd27dc1. 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/DEU670901279.
Qué Grande Es Tu Amor (How Deep is Your Love) - Spanish Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f47f802367025c047e015b2a16e5025378b9958de03137715a0441bb35ae5c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:36:01Z), 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/USSD10704026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7606d2cf7373169a8013e647b45bf73dfca3e8767c1102630a997c95a7c50ee. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USSD10704027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1e0f68cfbaef45d92137bbb2eaa11371c20de8ffda3e3c3eef1b160b1eaa49. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:07:45Z), 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/USSD10704028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4328987a4e717b77b8c77cc02ac657ccb4654d0a238f2fabef02f08fc1b82e6b. 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/USSD10704030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb414a55091d6c5ea1b8a307dfc0273a7ca479af6f65ed9dcdfefc80e64b02196. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/USSD10704031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6b855461984451e8cacd658fc3a2a4a33a59dc1f80698cf3a483d0dc19cdfd. 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/USSD10704032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02071d3ddde69f7a50c0e4b81c5779e254b8ac52e4b0a4640aba44638626f57b. 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/USSD10704126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f0ed6fc896c30dd67daf9eb9172d02a4d7cd3edc37225be7e5f943477c4a9c. 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/USSD10804267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e85f4efa2eae397ec58c22fbfe0207371f6e817e81c0ee2f5423dbcff10aa2. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/USSD10804272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7c2212b123c6d880b195e83850b15e5fed9c72f729c77e831dc9e7e7d04668. 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/USSD10804273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcd46aa1baf57df79a96da8ad2e8b53919834b3f009b35d3df9c67019eef45e. 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/USSD11400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d5f0246b36953c55390977171a45e0bd2736058c41f1028136a4bd297bacf4. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USSD11400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9e9a83717b3f98b919f47e2e44ef54008fe8569967a4211bc996a65dd6de5d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USSD11400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2860d756453aa311dd14e5785f3ec5f0da82545c4ec3dbe88abcf76d84c76513. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:53:02Z), 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/USSD11400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f624f7a072dc1563523ce3f9c779d2f7f6e24769ea57ab217175d5fa0df182. 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/USSD11400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798376eda60385a7c66287075f85099275469b7457034b269adda915972d8676. 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/USSD11400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5415ee57a2d13ee31b91e7d7c35183ae9669d617bc629bf6ffe6d5ee0462f13. 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/USSD11400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ae1b4d7f0caa4fa70f4db6a528d690a7169a2068989353de7ba1f6e62698de. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USSD11400063.
Esto Es Normal (feat. Tito "El Bambino")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972384e979a9f937aa49207b891e673019f0990b62b23db2a02e19818a832424. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USASN1502519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662e9dad9f2a15c5e33c2155b911e0997d73991bbfc6b81b9a3f7429ae2ea591. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZJG52231664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6594c78826d6bb96b2f06f316ca77d820009c477b0b3d6ff285768a1ff67c69. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZLL92221808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47012fe65e89f9e6cb836ba2a8bccc7b248e7b412a614e1c3438cfcf8660908d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNMT2222175.
Barcelona - Paris. 2nd Flight (Select and Mixed by David De Barce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d52bfb6e2bebb55137cd56502619293929dafb101d76ca79720f650b7b51d7c. 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/ES6101323312.
Journal For Plague Lovers - Optimo (Espacio) Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9df13cfe10dfb7bf36ab2b148898e8f4c15f3fe319bddf6bb239da14d01d7a. 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/GBARL0900634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c621c3ba2f53a6a406a9ef6e09a4a80f349fefa9465e37f5acc2e7340e93587. 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/USASN1403258.
18 Hours Of Love - An Optimo (Espacio) mix
Smalltown Supersound Remix Anthology Vol. 1-4 2002-2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fbb752a51d04a2e2423c3e82ff9bc60c6cb35822e3c688d725be4fec3ca1b2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NOSTS2250350.
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