thumb|right|260px|Rosalia de Souza (2020) in Aarhus, Denmark Rosalia de Souza (born July 4, 1966) is a Brazilian bossa nova singer. She was born in Nilópolis, Rio de Janeiro, Brazil, an area famous
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 0x6ea042b9d900db3569ccbe5e978f911395ebff9b659ee6a570aa17e25f997e74. 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/8ff2a46d-4aca-44b5-8e02-a9809e5fc0a5.json and https://artists.proofprofile.net/proofs/artist/8ff2a46d-4aca-44b5-8e02-a9809e5fc0a5.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 0x0978f3025f174574b402fc3612102ee9c095a768e8e3c0db32a4f8b60bcae8cb. 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/ITO0P0900000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abad0d1273ec29912e438ffce22416d67a22b70e2164b3c66b72413b24075d2. 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/ITO0P0900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc714021cbd2f200703201e17b353992ffc425ce587981a004b4b40b5994ab374. 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/ITO0P0900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02cfb542aaf0b45e392ccbedaa414bf78f8e163c66720185923fc20f4973acb. 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/ITO0P0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648e4ea14a55a5d6b51ab1b32b296699a1e5c29d2e4cc4dde544a6639a4cb662. 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/ITO0P0900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79db40ce5ed7f9c904ecef2d0291f15def577a79e3d399078a49febf0ae7754. 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/ITO0P0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a73688f9b8de78520f70e2d3594984a07198ea569177af665df1c6d435efa5. 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/ITO0P0900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23dfb70b62078818cf66a43fe78a505720deba7a914f339227b308d7872b0b6. 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/ITO0P0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ffd7615ff064ddfab734fb116b9425cc58e76ca2c0cdb86d461b756589436d. 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/ITO0P0900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d0d327e2addb6c2d4245622543eb9c650bb683141dcf1083b7cbc4291357c4. 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/ITO0P0900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17488ada91209d0021172f8c528c679758fd5734c272710f92e7f1be32f49424. 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/ITO0P0900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5e475212801d03cfaef26db1be931a977c1eea016bfa93b42becd8781686ed. 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/ITO0P0900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb309908557ecf6da1ef549972292e74dd3e0f36e6c3f0f68868cef5b31f6a629. 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/ITO0P0200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa09044416bd19cd211f1b2946970fad1225b9f0b31e732617923c453d713f82. 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/ITO0P0200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af392edd659dbcd79b15a47da966c6077c7104b87c2cc62da4b95200247ca20. 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/ITO0P0200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65df2d26fdbbf4895de7133718c0bb8d0dd6962827bd2c6cca87d38224b77c9. 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/ITO0P0200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19f3f8c615ca6c88c05ded1cca0d81954fde87a0de272408aff483de5a1daee. 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/ITO0P0200134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13e810fcd974203163964b194e3fa487bec9d2a4dbc9f34d03067e29061e6ab. 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/ITO0P0200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca681ba849154cad0ad5a07e1d4fe9d21eef058a50ac6afc5c4d0fbcbfa1907. 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/ITO0P0200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8f372129aa59bd7fd30b0aade5ad25c86eb3d02a8be1c017f232db438ea88a. 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/ITO0P0200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefaae72356e13dca7b72357312f61b729faed4081c94a0aba2a891d12a3b8e8. 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/ITO0P0502046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad99fce5ee26bd936c5fb132c99348db1aff389123022367b3762aad6505dde. 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/ITO0P0502047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1887d22934557547567385a94fc7ea3ee6832847879ab1db9d2d851bfe990fd6. 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/ITO0P0502049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643556e677ddd8dfb5d690c731689e5daf1467c1f4cc634e706ca76f216f5602. 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/ITO0P0502050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf68fe7c8dc805c5563f8a8e2455a8ee23b9d74638aa3caa3b0e56f2f0e8aac. 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/ITO0P0502053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7909e850ee8d8a63646aa76f095d0eaa6e3f85417a3bad9bff35a2857c554d71. 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/ITO0P0502054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd774714f95864562702887f059e99fc2a69c79a7c03d4ab8537b9efbdecb0b8. 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/ITO0P0502055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb082c4ac84d5ba7ec0fd90f6fed917e7b3f1370fe0cbb79754f7c3503eb48aef. 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/ITO0P0502058.
Fica Mal ... (Remix - Canto De Ossanha Remix)