Sueli Correa Costa (25 July 1943 – 3 March 2023) was a Brazilian singer-songwriter and composer. Biography Born in Rio de Janeiro into a family of musicians, Costa grew up in Juiz de Fora, started pl
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 0x64028356a0812fa09ebc11adc33155b5eedea42ebd09726e3dd45ed9870bdfec. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a14135bb-823b-4407-a1b2-5df95ad2f78b.json and https://artists.proofprofile.net/proofs/artist/a14135bb-823b-4407-a1b2-5df95ad2f78b.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 0x3f5dca837ee898df1d90b835b6aadf139943d866268f9475c968b85aa74706a0. 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/GBPCP1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789c9989022facdc261f614fb0f7599d52a432252bda78dc29c3bc115a1d07af. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:55:53Z), 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/GBPCP1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841ca3c5569fc6e34c9a3d09633ed5d482df886fda588e09172388414c4620c0. 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/GBPCP1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b69bc8f2a2c510010507d3dd4de2b5d1f9c6f3c82fa4667e14c0135b0ae97c. 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/GBPCP1400012.
Sueli Costa Convida Fernanda Cunha e Áurea Martins (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c4f31e0cdf1629f387fb3deda4b2a8632b873d45db9d3ca8de04240d35820e. 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/BRFOD1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82909d6dee0a3ca10ad845e5baada1ed09a708251450828b85ea251de44648e. 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/BRFOD1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa33a2688e65961de3e371b1ff473ff47979ca442a95211639c8bbebd095eca6. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BRFOD1800005.
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 0xf520c20b3877a063ad7aaca9ef2cf4de8902ac742eaa5462b68ff1c8b76f467b. 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/BRFOD0700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0de09ab8fb681358fc3e0be6059fafe29efa86ab31a659348ae5eb4e143f5ac. 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/BRFOD0700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb448e622dec0817025693cb8462d00efbbc373ef7a2d4fe23e3d18b2123286. 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/BRFOD0700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2e4271673a4c8abc084230e2b369da88a99daca8b5d3e47ed66125b9cc03ed. 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/BRFOD0700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468b1cdef1bd6eb97c917344948a36db0a8a905d6cc4b0e97d08d4d3f8825994. 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/BRFOD0700022.
Retrato (Sobre O Poema De Cecília Meirelles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd7f6f6d466743700792f084f166a9a6a58d7ecc6f088ecc35fd339b428daa2. 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/BREMI9400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcc2cd33d14efaa298760656a8e17d60e6060f94301015563da1d7c909418fe. 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/BREMI0500859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f3f1c5e9e328f9003c1639b10935f53d48a1b9af04d40cf16eacf11096df2d. 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/BREMI9400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d225a65a4ff1d11615b2c686a24e083153e5a65c9f4861a74beb0681006e674. 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/BREMI9400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50f208dfe6be27516028e54ecfb5592c61516a692ae701ce5e3eb3e1ba0126c. 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/BREMI0400187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd286f151f6ba9ca0a7c93594e7eddca81c5d3ab0adb536477008a69dd549f53d. 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/BREMI9400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b6c04afe79acd77478b3dc35d1688a20c43b51b5f4105c311f4c6397bf6df3. 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/BREMI9400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6a1c7f9becabbe7210ef4585e674aa3d2ac7ddb87d1aea212c94ea5d4d19fb. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BREMI9400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8081eee2c559e33217a940507dfffcca8f8af5a268369679745cf142d3f434. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BREMI9400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b6bc35cd8c85f75936f276219faf197bf95776073fe2c3eb1d6fc3e0009bb7. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BREMI0600915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50476d256c92db0ff95c2a4d8e1ac76985f78e484c697455c86a024dfe39aa59. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BRPUI2100396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8720ac5a80b91f7c2274dfba6de2b484972ba45dee1204e6d9c11422c10e001. 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/BRPUI2100399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b456435f62ddc03216256a5a5617fc081470668a7eb0b7d1f9e7d6dd0a52551. 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/BRPUI2100397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e785e10d18e4191d2e025bea35d1a44e78b9b82b93c43d0565a67df9ac8356. 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/BRPUI2100388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3936005df79c78ffab29f9eef3ac186793ea98a8c51f12f1b3a020dbc51aa1ba. 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/BRPUI2100390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467138f78ce6601bce343d2c02c545d62b3b0ee6b5f4700658de8df88597d005. 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/BRPUI2100393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbd57d5432a71cd3a9f4d91237355b73ec5834f0f3623507dae4eff1ee6f9db. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/BRPUI2100391.
Rosa Emilia Dias - Album de Retratos - Cacaso Parceiros & Canções
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d1b925b4d3ca9097b331d5c1e80b2aa97adf74e912602267e759fcf0cd5bf9. 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/QZBRF1847180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de62be6fdc0d6465743b77e5f0f8c8e202cdaf85d57c323d5fc0db728d3a340. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/BREMI7500312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8310944e8871cc7a3a318bbb62e852868a2a0af664b4c685e59cb2e8c9b0c0. 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/BREMI9900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1086d34ad095fc94faa2d93ba365741fd46606b9ecb9287c7d858a291141a3. 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/BRLUZ2100011.