Laura Canoura Sande (born 2 January 1957) is a singer and composer of popular Uruguayan music. She is considered one of the most renowned female solo artists in Uruguay. Biography Early career Ca
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 0xb8d07d643968ec34a94ac9e84283165478eb62bd446969bab9f99ab77c71fe71. 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/41962fda-57ce-4901-a6b9-22ac0beb8092.json and https://artists.proofprofile.net/proofs/artist/41962fda-57ce-4901-a6b9-22ac0beb8092.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 0x41652e1ff634cf0505151f773799d01b7076092b59e4c66f41e1bf29506971dd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UYB141721302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb729a35b84222e69c399c65ae313dad183c4fd5553b1884f9d3aa5b59ecf39b0. 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/UYB141826001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b90fb7e5a4d45fa5fd525bad516026bac79d4c0855113364a3ee4e6dfbf49f9. 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/QZ22B3000738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625c0bba2c5129273f05004b2d83ff314339461fc54d43a2b1ae0557e7c3be05. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ22B3000740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9a5cefd500047712b831dab4e003cc477b80cd1f66c5623eb227486fc75421. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/UYB140705503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fab3f0c85d7e89a5f3a7daf5e0adfaa7314345864163843d09820139d8452f5. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/UYB140705512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625c0bba2c5129273f05004b2d83ff314339461fc54d43a2b1ae0557e7c3be05. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ22B3000740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f14db03cbf7f79a2fb0d522a3ab4d24c28f52bf06ed5bd100c16ac49a9c1958. 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/UYM122002704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4984d36d4491a2eb942d6daea7df8d03e4079812ecb4463e962b604d6782e6c0. 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/UYM122401144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ddf1163049419aad25709b92b98eba19ab8a66761f7de95c20fbf241e3dcce. 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/UYM122401168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ddf1163049419aad25709b92b98eba19ab8a66761f7de95c20fbf241e3dcce. 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/UYM122401168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1afdcd1c5b8659f9bc531386e32a6e3841eb455cc7ffe0886cc13fd02a6e326. 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/UYM122401327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61664fde8328fda87b34ea7689e2ac7ea7c89839b9440d61afebe1696e8077c. 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/UYM122401328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35631c669057a6f78b8e1055e2f23c1034cfd92794a731f340ab067c64c5faa. 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/UYM122401329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7518e4aea689fd863428004c250dee6b0dc22d14784ec3682e1f4d72480245c3. 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/UYM122401322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4b2826a5b8b8937b277ebaf9435feb2ccc90f679e0a5b2b29a52982f541cf2. 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/UYM122401330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac115c2b4511c22f9eb492732b530395d054f57741253018ec295fde5741f1d6. 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/UYM122401331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc847ab7e2f0b5c95310762dce7d1752c2f3e31fee421bf790ad124411a3253cb. 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/UYM122401333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d52c1673106c0a9d3cd6405fa0859f639f1b9dcdf0dad3d2e2d73a66d721fea. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:26:08Z), 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/UYM122500761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddaae796ee270ceaeb7398b1f43664c28629bcb057de0240b414c7ea9f5a29d4. 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/UYM122200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42e20eef356102aff2ac45d94440d10f044ddc87ef2a676f0de71e8b26b23de. 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/UYA138000001.