Alfredo José da Silva (May 19, 1929 – March 4, 2010), popularly known as Johnny Alf, was a Brazilian musician, sometimes known as the "Father of Bossa Nova".Larry Rohter, "Johnny Alf, a Father of Boss
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 0xe5cad791644186cac18886d1829fa6b9a8018d9fb444c801ad87ea454601d2cb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2028ce2b-4c18-41ca-a35d-5af6eb630944.json and https://artists.proofprofile.net/proofs/artist/2028ce2b-4c18-41ca-a35d-5af6eb630944.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 0x5072ed98149765b4a697581c8c1139b8862410a81038b5e1693049fbb76b8713. 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/QMDA71876364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231e60185ed183194b0ea5f25a022039f77b204410ccc2f343e8ea5c10bbd44c. 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/QMDA71876366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1ea8c2df827ffef85180a2399362b9bcde245858b82d46535bd2774ee52722. 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/QMDA71876368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf143cf937fe04a43fd563a2a24c4fe07f2488695e0bcb0f309c97950abc79b10. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BREMI7300558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1879093b71c0c37b8ee119e8250923593a43c9e85cf43c3c44090bcdd464595. 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/BREMI7100378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f71de6bb2673326a4f4c5864955bcfa38dd4daef660f58b565e84ac91ee3e7a. 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/BREMI7500510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9602833ba6612a63ec946a12a240a369fd14e7b649485c0e76d3cb30737d320b. 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/BREMI5600158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093ad8c4c9986eff3100ddd7020f921d151085387c7694174600e7f6c2387a23. 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/BREMI7100640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf143cf937fe04a43fd563a2a24c4fe07f2488695e0bcb0f309c97950abc79b10. 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/BREMI7300558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10360de03c428c872ad4ab09702d212311a5180064f2f26db7f01a34b9ff10cb. 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/BREMI9400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde2494a3385112a2d8922dd04ba86ab68cd51c133d61dad147e1896887a5064. 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/BRBMG6100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde2494a3385112a2d8922dd04ba86ab68cd51c133d61dad147e1896887a5064. 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/BRBMG6100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17ae98d93c62ead195764c04cb78ad24aa5a535e34e37b27d3b0eaf25da8c3. 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/BRBMG6100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c5803fa5de382d6f53a925adee0de01927a49afe0e3c74d90ad870bf760183. 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/BRBMG6100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1940536adffe31c00381af103b69562233edfb9fe7e395d64a84a87c41eaf8df. 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/BRBMG6100039.
Acervo Especial - Leny Andrade & Johnny Alf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdc0355b207744e5edbe32164fd0b89793bc7dad9ce132a76127abab0742ec3. 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/BRBMG1902315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20878e2f9ce433b9bcdced843532f602eeac9b5a908b0104c993990f79b118ac. 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/BRBMG9009957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2ace28fac42caab88ec064732f05fe1a2bf39c92c6e612a2e8daf8e0afbdaa. 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/BRBMG9009959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9e64c54083f07d3e46b2dadf76e252c84dda620c0223fa0fec9f39890b3982. 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/BRBMG9009962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7e3bf769eea1ebd686a9de21b7ef77ed258c7792c41cc1d1f922c191ecc191. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/BRBMG9009964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2190d37691f07bb216daa0f9c1041c97ba38c2a5a7f21f5a31dd40ecb140f580. 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/BRBMG9009966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c28a71e85cb7245a4feda46237a3342d2c01090b4dc237f1ad535aad84817b3. 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/BRBMG9009968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f58432a68dd144d4d1dcc915e25fa612ba37bee11db7b6e8c4bf89397dea8. 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/FR6V82246434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8553c8af07b725c65b188ae744db8451862fb10b60d3735815746fb129bc5c. 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/FR6V82246435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb343bb466cfebfb126d71610e79ba221ba26ffa3d2b99322b80a1ece82c33128. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR6V82246437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfdc9257adc47b7f4698dc7886c3c6789d80f1b79af8c8e73f72cddad34f6b9. 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/FR6V82246440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba55be558dfdf7c68bf96b18c2dfb1b4bf8afb76347a38279c0c9d6f894ad00. 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/FR6V82246442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf2eb4292570e8a615d59e5bfb64b739d0aafca3372562948c68fe8b2f31d8d. 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/FR6V82246443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc442e1ed287ab08440f1d78c7e193ff0446a7fdac408a28bff884bb3d6f6f2. 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/FR6V82246445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed06e175ed5e8890913b7f29a2b00a4f8860523b6347c6b4f1758f2234bd55d2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR6V82246446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64c58f91551035338d5169d2606d14ba43d4b62715a522ae2af2691d89e55a5. 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/BRBMG6400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad41dc5f211a61054a15f02e20388aa8d8b03647303f62344a2ff3896ddca4b9. 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/BRBMG6400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0d26a4a55dd42a4d5da80680b43a848e13548b199491ef859c12402743b338. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BRBMG6400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dba3cb0e4235393612ad22e4d521baa829b1a13b10401242461f06a80dc359. 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/BRBMG6400055.
Direitos Humanos No Banquete Dos Mendigos
Bia Melo Canta Johnny Alf Arranjos De Nelson Faria E Roberto Menescal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bade552516576251afdef693ca958f0cdcd1c09a6c57fb593fc32cdb771dda. 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/BRWMB0200595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde2494a3385112a2d8922dd04ba86ab68cd51c133d61dad147e1896887a5064. 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/BRBMG6100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049091365c228aa23900594015c972f4df2ede3810c9fa18699d716b60d3f918. 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/BREMI0501092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7e3bf769eea1ebd686a9de21b7ef77ed258c7792c41cc1d1f922c191ecc191. 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/BRBMG9009964.