Valira may refer to: Valyra, a village in southern Greece Gran Valira, the largest river in Andorra
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 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 0x3ddcd07f0474defbdc1793d31245262c87df57b661424a8c042179b37f652fb0. 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/ad959bbf-6fd0-497d-871e-358c0c3dcd51.json and https://artists.proofprofile.net/proofs/artist/ad959bbf-6fd0-497d-871e-358c0c3dcd51.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 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 0x43b2c69a23fb826db4154866d271eee51241b1433ee44fb06f627e0c22519a3b. 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/ES8022100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094a56db90fed620463b6b8963ea49368a1ea5b5c21c432105e2db444df65cd7. 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/ES8022100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d15eaa20782227a0b094bfd3e772647bc7d0568aa10f9a7939d95b7435f975. 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/ES8022100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637fda2a6458f8c59b27a4121e4c7451c4a5a9ab5aa0493b31836439dd810f3b. 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/ES8022100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56568f874588f28b0628439d8a53c633b376a04e5d5f356cdd30f7d678b44232. 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/ES8021900073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f4cbb427a05622f46159f3bf26d6207c597abd722ca4da16165e8c41da6e74. 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/ES8021900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab70f95c9e736378abc5b72f8f757cd8d92f3d4bd58f98720b02cdc55af7f8af. 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/ES8021900075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99174101cfdc1bb6367200952af3bef13232bd866d8efdea402cf70acc31e221. 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/ES8021900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86181aa05219cfd0105d875608209a0e686bb17aae4a46af409d223abd070858. 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/ES8021900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf96067fd3b2f9e88ed1e2d3654384a69ff4336886d12ddb964bc863fbe332f. 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/QZ5FN2449531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7991406a9488ebbe4a5604010ac2e6b497ed80d703fa1f39b62a723ae66aa43. 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/ES8022300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e660fca4196472315cd81b1fd2cb5e3b9ea397e6e78e50cd291f5ff057c0304. 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/ES8022300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0201573dc311bf7439482244a7d0a0e78121701320efbf3e36f950f6501358. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES8022300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0374539a84684bb7af996df9685b98ce86b1ad3919404c184b313b4de0d43d5. 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/USA2P2234448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d07c724729f57985798691825a77bf17dda437bda3f8376bfcf433dd25ef053. 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/ES8022200271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd597df68149dd0f6f78007f413e9c3526b188ded638a7ace4b044f806f49fccf. 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/ES73S2100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d4146296fd1f9921555ade1869fa228054288d71839f367898f5eab8f0117d. 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/ES73S2100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fb9bf06b217d071b7fc99640b121cef19dadfb971bf6c4734b61ea86675e8b. 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/ES73S2100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6037a964317aa8374fba62d94fd6592d4d1f1706316aeaeb5c9243380c3bf588. 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/ES73S2100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2364ac5037bb97f445cfa1232aa3316c5b6e2333a0d90ece785b018fbb3a62a8. 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/ES73S2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5955d55ab0fdc2f1ede14f9dc417cc17c2bc54f00f06ea8b14c0be13de9400b8. 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/ES09S2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1cc75d7c4ea4d7d758c2565dec930a0d98f5ddbb95d30275f9bcf62468367c. 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/ES09S2100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203e126b1f9ac55b39d3979f3c6113c67c44fdd6fcacdccbd992e79697c3ebaa. 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/ES09S2100249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af93b1c5cf226f7ece5e25a178f079d2776bb34ccbdd156c3aa2eb219eacdb5. 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/USA2P2357798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88226d991860f53f8ea229202e43c11614a50a5bc4eef8659526213b3f997bb5. 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/ES31E2303887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203e126b1f9ac55b39d3979f3c6113c67c44fdd6fcacdccbd992e79697c3ebaa. 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/ES09S2100249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094a56db90fed620463b6b8963ea49368a1ea5b5c21c432105e2db444df65cd7. 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/ES8022100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d15eaa20782227a0b094bfd3e772647bc7d0568aa10f9a7939d95b7435f975. 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/ES8022100004.