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 0xbff2610b1aaf75d8f667e221627bb0702ba7a559b12705cadd0b5a65f85c18fb. 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/b6f7e79b-dc67-4420-bbac-612791e553ed.json and https://artists.proofprofile.net/proofs/artist/b6f7e79b-dc67-4420-bbac-612791e553ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Jorobado de París (Original Cast Recording)
Mamá Es una Estrella (Original Soundtrack)
Dorian Gray: El Retrato (Original Cast Recording)
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 0xe46b2857e7473f25efcdf33d8daa10b8c54d4287e74573e1ab63b8494afb28b6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USL4Q1868703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bfbc28856c88e99ab59bb1c93f9cfbadb702f3b7b6ab84052e86d7b881f754. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USL4Q1868717.
Angel Mahler & Pepe Cibrian: Dracula 20 Años (En Directo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9fa62e726ee60d35f1dd887038b155fd4f4b6608419f78635c571011c21907. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USHM21868212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf18c60171d406b456ec9a9282a3a42fea8c06bd0c0cca9c067470bb9e97f476. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USHM21868233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba122cde7a8bb07abbf2feeeb79d809fafbde7c2ee88056e8498b86660a928d. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USHM21868213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde190df2f3ee2235b3a8c36bafd178cd2e6f9ff6a56903895025b009a31fdf67. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:30:05Z), 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/USHM21868234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe22a47b3867e822fb047b8e76f1af436cda0ffd2fec07453251d2560cd450bd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM21868235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcbec9fd113129056d04ee87110ff112630b24b6a85f6939880c82b83187ba7. 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/USHM21868214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cf4c08f8ac48ab46f4e3fa512b223c3f30ee4165fce2937d94781a001576af. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USHM21868215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451379dd60af05183ec68d358db4ea35ddf36d39fe2b07b4157589bafc18f850. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USHM21868237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8caa7b7b78080311bb83fdd65fc7d6404928bc50db548a9ca6a831c762d42219. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USHM21868216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82414fc99cc1d1115759a1af42e6b6deb374495b2568ea343a05d2511beb5c0b. 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/USHM21868238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7113b40d1b0c3579d242dfbde1a194ca3ee09e79c71c1112ce3da86655970a3. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USHM21868217.
Obertura del Segundo Acto (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7c2833f065aae827336d9fb36590004c5b3013b8471d8d9ef926ab26e84d66. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:49:29Z), 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/USHM21868239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bed33b9f48d7c35bff4f47b27ba3b434fee6096261888d2c8d3a63c32c4bed. 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/USHM21868218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9855da57ff665afe943b9e61b224f69b09e26d446f9b4c43dbce1e09689272f7. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USHM21868222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a3482f715880d0c32094a9397f3104418ed0c1b6cd29e98540d9311efe6de9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM21868244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934e57d3412b79811441ee878e07571b9207f606769915f0a25da7f17774491a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM21868223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e1ea9ea26c5069f6742c11323a7fc2d1c4965f2bc6f6c9266c4d1f0abcde3a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21868247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c402ce0e6e2d23dfa5427733935062af5b3fed25c2068c310bcfabb9a9625ba. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USHM21868227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c06bcacae27f3c3c27cf3e46bbad71143657d32eea09f30eb6e828555e4be8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USHM21868229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2806ef72d8c4b85d818e2e3f05333106ccd8c638ad7460d274eaffc79f0c9148. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:08:25Z), 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/USHM21868230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90e05c4397e64718b4d9aa48c916f1f1396b0b3132b1d8daf9a53ef03ebd136. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:53:14Z), 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/USHM21868232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042cc8ca315eda87b30780fdcbc356b3880f592c32f41a2650359bf86a92fe48. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM21868256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef91a2bb7c80c219b90f89722d275549b2ed75a3501abde69b5502dea1defe0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM21868257.
Tú y Yo ¿quién Nos Puede Separar? (Final)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c9a54c2ed823034f66f2057754d53f7374eae2fa2aaa3f2a2d7b0c3d4192a8. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:26:23Z), 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/USHM21868260.
Requiem Kadish: Homenaje a las Víctimas del Atentado a la Amia (En Vivo)
Angel Mahler, Cuarteto de Cuerdas y Piano (En Vivo)
Ángel Mahler: La Música de Mis Musicales, Vol. 1