Sangtraït was a Catalan hard rock and heavy metal band with occasional fantasy and medieval influences, combined sporadically with contemporary themes. Formed in 1982 in La Jonquera, they stood out fr
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 0x2c29d29fe00b43c2bb50040412a00822b89d3f8e24df0c4d5135f546169ac919. 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/5a4cfa67-8896-4f47-95db-77b3b3785a98.json and https://artists.proofprofile.net/proofs/artist/5a4cfa67-8896-4f47-95db-77b3b3785a98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
20 Anys de Companyia Elèctrica (En Directe)
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 0x83bdda4df647234320f2ae726d12317f8070ea51ed768da6f8a8b66571e3d81b. 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/ES5060306007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee943444e493706f95c35df8a364b4575d6134f9ba6c679cf0ea58dbb82d7d58. 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/ES5060623807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8837f361e342efb11d2e5e57c759d784312523417922b12bc3dcfa0689cd7e. 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/ES5060623811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3406cc1f6505e6d3938fa30a2fab9880c411a61d8bfc7a4a68b3488b9cb238b7. 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/ES5060623906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f49d9f50b7aabb2b7907aa01cbefe193dfdca2af5954315d476c2604321ce1. 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/ES5060610902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99ed3c3012fe642b9029b659a06f18f8af1f15024be1b37b4ad765931a0ce1a. 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/ES5060610904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd589ba8e43076018eadb39277ced529df0f4e3a910856117767c9034949c10d2. 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/ES5060610905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb779d8c8e4f098588432d46f1a3f0ce2601aa278681abe5a6b60137d8c76a4e. 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/ES5060610910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf767eca37dc3e7f9c52df0d56f54f4fc68f865f3a0c1a8eff1f85caec5aaafcc. 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/ES5060607201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5193bb8578442a2a1f118715d74e872b5941ee17ae6395d7d7bb1d60496defe. 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/ES5060607202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270131e3e0069647806208945407c018786dc0cb449f33fa5faf3fcdf9180266. 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/ES5060607204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd247388188dde0c4e700a694c9bc5e88040bc0ee07e3409d9e95e5d3c80d45c9. 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/ES5060608401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e2044d633ce2fa8860dc91b716efc8a21c08ecb0a0c76889eab7b77b23e1da. 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/ES5060610801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe2a36038dffc14a7c9c90aa4ae603fb6eec83af4763bb34c61f61bcb7aa061. 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/ES5060610804.
A L'Hivern, el Millor Amic És un Bon Abric (Vol. 2)
Les Millors Balades I Cançons D'Amor en Català
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4688677700335557af6af4a32bf7a4cb413ea37a45d39d19acc733ebb7435b13. 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/ES5060621206.
Pàtria. la Llegenda D'Otger Cataló I Els 9 Barons de la Fama (Banda Sonora Original)
A L'Hivern, el Millor Amic És un Bon Abric (Vol. 1)