El Malo (The Bad [One) is the debut album of Willie Colón, which he recorded when he was sixteen years old. The cover design featured a double photo of Colón.Sue Steward Musica!: The Rhythm of Latin A
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 0x489daad8498be8ec220f906368ce8c2ac29b9592c4c033948453ab3b21f2f55d. 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/2fb577fd-f736-4119-b37b-837911574a69.json and https://artists.proofprofile.net/proofs/artist/2fb577fd-f736-4119-b37b-837911574a69.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 0x5a59b340e81f01b9b7538380af2da31076b1982cae4065647e81b29f852525c4. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZK6K2474172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea42dc9ab1225917f0d5610e0903a8724ae889f168fe3c5339cebe97921db31e. 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/QZK6K2474173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d41441c96d5bd0e7662f46f19055991b85185f20ad4e6a490f335201219dd3. 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/QZK6K2474174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510677b1a7e8229d7926a9c3912788daad702b0f5c26c80a10a482e6392c51c6. 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/QZES92374718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a11533172ad3653ebdd5ea75c1d1d851854e74d2742e3692aa72ab10427c24. 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/QZK6K2474175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e214c81f8d00b9529cbeb8b5daf560c6b8642c7fa619ef7702a44ff1025ba4c. 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/QZK6K2474176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947547ac8f1ea34d118704a6f53717c471147d69ce79148c6274346a3edaacda. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZK6K2474179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bcfad16d0ba13955f84c4abf26c93c6bc239be4252dc709d853373b363db25. 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/QZK6K2474180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a597f22bab346f0de6ba0b30e789d300627b7f859102d28aa5641ddde929da. 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/QZK6K2474181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b52d578c4c8992214ebd8212cf9c4ccff4a324b0bfd49f347f5a7ee8e6b129. 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/QZK6K2474183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c35fe5e35a4ab8140d73ec5cd34906b80fe0067ade291885c0e991f41b026ac. 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/QZK6K2474184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32c70c2516441c3de2549bdd4fc97aad0140bcf8a584f9f69709d1f69dd2b8c. 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/QZHN82420443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbf3a39d6cbaf7739650bdc312c33e7a3cfec89d1c7a34f5cb4407c23941e0b. 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/QZ5AB2481843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa976de7f7c64ddbcc3791f12bf3247967b553669cc91c158551b5c400f7b8059. 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/QZDA62496313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312a8291ab8bb87996772676c4067bb95ef4da20d96801087b854458cd6fa56d. 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/QZFZ42438108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7281ea9bce3aaf583a31fd76b5b0353fd4c747209312dc0b16544e1662c92592. 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/QZTAZ2360891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14281b18e9b970355db7f26e0c45fb7b3225510970f354f672d02e306be8d0d9. 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/QZTAS2358218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440bacf9af9daba9607ea63b14f1f8aeec895fdcb1165cb6156f678b8c3da292. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QZNWU2352267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0800725316dadd59d6ac3ba1853c1e33662311307a46de41587718d4d780832. 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/QZK6Q2382420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510677b1a7e8229d7926a9c3912788daad702b0f5c26c80a10a482e6392c51c6. 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/QZES92374718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275ae90b3f32f35eab41acda935094529657424dd5ea085751ab16558179ae8a. 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/QZFYX2372720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf56f7055e5ac05505708139c7653dcefd974ebc1550533664c8e6e3bf955f1. 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/QZTB42225899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4215665fb1b02aa8f396a4e4024187fc9f1720fca0d8d37fe23d9472cd7ccf. 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/QZTAX2260791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadeb1b5d3b666eb35083f11b0bc4eb0343088039f2b2e7f7a30af37f13b088fc. 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/QZMEN2264196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3a7a11ae9f932abb44140d93723713e3d2f999618d6e57dc75975854e64c47. 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/QZHN82256281.