Joe Acosta (October 31, 1950 – April 6, 2020) was a salsa piano player and one of the pioneers of Latin music in the United States in the early 1970s. Born in Santurce, San Juan, Puerto Rico, Acosta
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 0x0389d9f35112a30bada5d006337ce5462529176c084a9e681feddb2cea0cb51a. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/538e877b-c296-4907-adf0-709dc50147d0.json and https://artists.proofprofile.net/proofs/artist/538e877b-c296-4907-adf0-709dc50147d0.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 0x8f52ffae757b2dead88c1a4c6ab8e650d854eed234b9a3a90e6c48f320446542. 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/USLZJ1798993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5355fcc8089ddb1bfafddc3513d7ff90bc1e1ab60bda82bf551abb61b068cf3f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USLZJ1799021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1381e35eabe13134b90b3721153a366796ffe28f6104717bc2c9c9ca01d8b14. 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/USDY41567950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb5ea85bea69c83964fd060da6c424c2ff4009c60fe96b2f6416b5f4c32c21d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USDY41567952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1bba712b6d9354fd16b00323a3de47cddf6a3d10ebff89eadbd7f259b64030. 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/USDY41567953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4785a4802f86a35f37bce1c71ba69752ded1ce97de5c6a093fc29e3f5c1e439d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USDY41567955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a536a9990de292ba5553534e4a9095c1b3ab6f8a6e785bb62d0d3e64e3d3802. 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/USDY41567960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cfee90cd002c9d896a168896e615b76298d1ab6240f46a3e0bc7c51f2db9a2. 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/USDY41567964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9a349af6ad1214199ab57a3ed8c6b1c9d5b494485e16f35e7df1400c1a0b1d. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/USMRE0850301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cdca5867f17df4850a738882034ed9245ecd4d6139a8b47977e19eb65f5f03. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USMRE0850302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4798c86b6bbf13b8c97d65ff294d96eb12a6e5017374a616df398d11be1214d6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USMRE0850304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6973eb3a5d3d830084c8060b6c4f7540863d8031424e39f72398ec468b41a5bb. 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/USMRE0850305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556ca0b4e6f23eac8ad2a3e8867d4c3c12d0c68b54e499c394edce29e765f97f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USMRE0850306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e06be651ab8da37b693d5dec685e4c3bb9cb32f63842b9f09048d1e12c25fc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USMRE0850308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4cb7db18a06f71696e4ad907456ed0ae45df69313cf33d765a942b60383e83. 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/USA2P2240085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d89f187b6ea7ace5620f10b9cfb7285e63444ee2ef83d408c1ed703a72faed1. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USA2P2240090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b110b1419e378ca1860541bd31a0f41eecaecdc9eddffa38fc4ded9c483e1e7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USA2P2240089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344f3a43022a9697b15b8833752192ec0b795d45eb07eb94bb5e35cab283ca83. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USA2P2240087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764b11e855ff96b476b4f955ab147d573fd5e1786d7372f8619cd0705f407e97. 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/USA2P2240084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9acaac339433654b5a56ac57ffe2b81877ebb841712027eb79b9857d8290e0. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USA2P2240088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3efbeca09aeed79ef7eea3fe295c476da550efe82649a708cf277967daf2a94. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USA2P2240086.
The Sweeter Side of Latin Soul (Volume II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694ed26cf3c0106f712344db330903baa870bda8d2861e9a401a3818a3f488fb. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCAGG2278726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb76445467d4afd552b1857f6a90edf941e975e53128d82f303de0d54f43eed. 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/TCAGG2278743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92644aab146d8252a3538e62079fcc72bcea179734e9c6fae1a63ce68b6443fc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCAGG2278776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c355f535633dcbedddf178d69ea8a59ed6275b80fd51abedb0cbf31cb50e83. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCAGG2278785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44759f986895f8261117f536544bce5061dd140a9bd2fffce3db572807179582. 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/TCAGG2278815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3ff9e3736e7e5ce7792a44ad7c2846828044d5424682dfa374be11ba162211. 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/TCAGG2278846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fdb09466b4b890b0a841eae768dcfa2aa71e437e48a4b7c1a99533bf2c6594. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TCAGG2278849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe339b83a97faf0d7451604df8b5ab65a7393377fd115f58ae8a3e0ed86c977. 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/TCAGC2221207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb17c650935ec6f4f1b6b87ca29ea17c8ce43c43e2937cbbed66f4ee0bbabb5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCAGN2247437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63710c4fe9e092278eda3b74854961f548b53a29c33b8fafdd4e7cc06bc71cac. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCAGC2221228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbd2f6a127697c10ce7069fd55048823772d5bc2db67f43ade3449610eba029. 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/TCAGC2221300.