Angela Maria Diniz Gonsalves (5 December 1949 – 8 September 2025), best known by the stage name Angela Ro Ro, based on an onomatopoeia of her laughter, was a Brazilian singer-songwriter. She was influ
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 0x03f6e3a4757ebae2e5d2a9ba7573cfa5bb1ebade570d1f48f8b9016ab154d6da. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3163ca7-86bf-4ee2-8a72-8b27415cb4cd.json and https://artists.proofprofile.net/proofs/artist/f3163ca7-86bf-4ee2-8a72-8b27415cb4cd.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 0xf5c3a097c7de581fc84dce54d2806ebedeef747ed06cb97199924353e829c8eb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRMCA8000119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69099334e4da0d19aedd0d3958909850e5cd284e5d9fbef341bbe85bb2523daa. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BRMCA8000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d030bec05881eac75d21d86b2fa03f25fa0dc92b3b47c020940940eaca719a4. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BRMCA8100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e9ef0c7ae51c4b0322339db3cdf16e3ded91c074854863f67cfd21dd8518cf. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BRUM70700164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7b7b67087020fb41e19fe6ebe09cfd2ba5b2d34511a0b6939c5efc5b0a6582. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/BRMCA8100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda1c856ee0c7e4c4d5d8685285aef0135f3e9b9a481973e4e4d9e403a1810ca. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BRMCA8100153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45450332748fdd3a335cb1a1516b11f144776f36683a4649403d1c6b2925329e. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:51Z), 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/BRMCA8200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf2f27d19c884faf732cdf1a2208a9a1de74dc76443527f921e6e6620ce2bc5. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/BRMCA8200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf509909f721475dda85817836f707d28811a59697ab5a34657fd44df5a2289cf. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BRMCA8200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8758c5f878dc7b5510b98d60cea58c389c559d196155196795354302ac289128. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:39:54Z), 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/BRMCA8200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe747d8c77f7fba7ec6d10baed741756f8638cccc0463bf527539da456b46dba8. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/BRMCA8200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2515b155ff2da432bbeab51f48024f955ea6465b343f3f59e5c7b8792fdd2d5. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/BRMCA8400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832e467f73bc19d55f43a9b6fad396d9e3f925d21733ca3fabc939da8bae0f2f. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BRMCA8400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bd9bc8aa66b4ff861eee8109d6a55e169f9e332be9241ff2853610814c6ddc. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/BRMCA8500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633a0a75fed0511d3aa9c06e3d4af9f0682cc6055317d0a60cf896096285894e. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:28:46Z), 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/BRRGE9300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ff4ebbd800d36420651b2e5f4eae3f1659a26374a40a26735f0cc6e46a87dc. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BRMCA8400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc596c8a88f28331194144aa1ca561e90ee56879f5b38d07c4ff5a0680ba538d7. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BR2RA0900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa955c8ad74d06e853bbcee3b92826d8f4a91f078426d3f7d56059fd8f3831c36. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BR2RA0900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092c34ebb573991f96cc7223d1e3ccab967ade3bae44aae947ab02cc6734826a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:20:21Z), 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/BR2RA0900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5e74d669171e660060edc477134d86c6b6a0965f63a6b7e7e4ddd9dec0b498. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/BR2RA0900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dfa8f4c26528d9c45e64d57c51f9740a50a1a1d7c0adba51a3b69fb27ae109. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BR8NB1100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa8046d6f8c6006bd16d7f82c46c3ea09492c0e0557fc7c62b049580f10b227. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRMCA8200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7c897b64bcf12c4abd1fa5b7bde83e5b85155c52ee08037f1149e7581bea88. 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/BRMCA8000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9ddfc6682a907c1bece742ff1935d356e1aebbd3e1c80a20e124ed0ff12a75. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BRPUI1700168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5422c8fd324c6791426d72555c0fe63dfacea8bde716e1d15f28f2949418ff90. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRPUI1700169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e8926a7fbe3177302623b451009d87990147e9d93078ea1468126ab3c13642. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:56:34Z), 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/BRPUI1700170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea733a9fab8528275fe8a10ddb1cc82670941cee2f33e975c71cbeb1cfe5f517. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRLOT2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b505a7e142967659beee91d113f7155d575f54e532ef6344fe70e688a599b1e. 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/BRPUI1700932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2dde248064444cf258f748bf876244463f94fbe1e3e429babcd5f50a673a4f. 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/BRESM0600191.
A Voz da Mulher na Obra de Guilherme Arantes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc4bd772c64317763e3edfcf4254104efe9b7a8a3b725cca44bd6429b1b3b0d. 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/BRTRB1200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd7247af06e6edd577a17abd702d6e9b9fb0ee360b02ffdcd296024f0c95db7. 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/BRECI1100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4c12f3bd87f10c70a62127339718b02eee7187185e42dddb4a9a061e38378e. 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/BRSGL8200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95787bf40b03fb68bb8337ec5c3c9f5c3d520617c7e2d3400e664eeb21135d2. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BRECI1200060.
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