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 0x5ebfa5074f7ed51c1ccb03aa3895bbb9e5602a801267edcc18c89969bd891e1a. 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/ce690f05-7a0c-4199-a114-d637bfa984cd.json and https://artists.proofprofile.net/proofs/artist/ce690f05-7a0c-4199-a114-d637bfa984cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Capolavori della musica classica italiana
Gorgeous Guitar: Best Loved Classical Guitar Music
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 0x2c7a3ff38cc0bcfe6b2d9382f6ce5683a6053fc9353b738e75e13fd7a65db5cd. 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/HKI190132904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ed3794681471b920e3f77b2d6915410be8a4d80901683f7b2e294a8015f130. 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/HKI199945312.
2 Canciones mexicanas (Version for Guitar): No. 2, Estrellita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fe047dbc745163163b36579970ddba66ecab2d095d5bb441f78614604a2692. 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/HKI199716947.
Clarice Assad, Brouwer & Others: Guitar Works
Guitar Sonata No. 1 in D Major: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811a9ed91d8a765e4d62419576874d4e9e723007adaf944f7cef73f721a36472. 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/HKI192200706.
Guitar Sonata No. 1 in D Major: III. Scherzo-Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d3fb9248c26a8f4856401794e842b6c4c3f8a7418224118993c430b2fa7055. 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/HKI192200708.
Keyboard Sonata No. 23 in D Minor: I. Adagio (Arr. R. Oliveira for Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563907eb01bb5c3c2c35d236de6547935dfc5a308244d84adbfaaec2080dc79d. 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/HKI192200710.
Keyboard Sonata No. 24 in D Minor: II. Allegro (Arr. R. Oliveira for Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866ee11f02c3d359042d6dc9351346cd3359c9ac26d3d476d99bd4741667238a. 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/HKI192200711.
Guitar Sonata No. 1 in D Major: II. Andante espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be6f58f09c91d2132d10e90c3b11ce3a5ea0722b70212f2e7a94783f85f46b6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HKI192200707.
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
Domeniconi: Sinbad, a Fairy Tale for Solo Guitar
Sindbad, ein Märchen (Sinbad, a Fairy Tale), Op. 49: Cycle I: No. 1, Bagdad [Baghdad]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fc71cb89ac7100dde4db753c7efd2462adaee8a045ce02fd03d8edc806a107. 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/HKI192224201.
Sindbad, ein Märchen (Sinbad, a Fairy Tale), Op. 49: Cycle II: No. 6, Heirat mit der Prinzessin [the Wedding with the Princess]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94c63ac93ac060a526bfcb0c77f72abd2f2ad80a78e43ee4228ef44ce8c8165. 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/HKI192224213.
Sindbad, ein Märchen (Sinbad, a Fairy Tale), Op. 49: Cycle I: No. 2, Sindbad [Sinbad]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd586eb5176146c6efa3727b1da3b662365bbda3d10e6cd35c99903b971ba1513. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/HKI192224202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e7e1ea41af3c32bb9104b23375b13f9f463417d3b72a1d39dd2898f3973ac1. 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/HKI192032501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586db1e1bccc40958ab1017cd370c73997c704f59bf69780fd2dbdb7bb6f4099. 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/HKI192032502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723d66fffb09419bd9185ea011395e5242ad7b38261c4fdf9eedabbb06cf6a76. 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/HKI191811102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7267d391b591e4340c8b94e22ce695138ff3cdc080e1b9d4ac7da4d4a4b0d105. 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/HKI191811103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89baf537268b9a4b60324cc1745a98785d8b32a325f70e1672c5bece71266e7. 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/HKI191811104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fac03de81cdae520b4bb77f77be40bd69fbc8aa9d578c19abf1d8e5aa89030. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/HKI191811101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dbe037a2d9b97c67110479f7400002f5d0fac84c8349218cc14207136b34de. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKI191811107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0c83c400a5b899cdb81f59e20d7d4c87ceeef5392746663520d7d4aab5cb16. 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/HKI191811109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49e97323595dc8941e6cb4ca071909597b590682fd20f4726bd73eea763bd9c. 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/HKI191811111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83017d1ec12cbb57e0ce92ab85536df891cf09087e63cd26d7ddb70f345743f. 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/HKI191800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedcd5f7907b6d8088e93e88ff3b2998853492575e0ebb6e810b740962fcf766. 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/HKI191800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f7b0ae16e9b754181ce264ed482da93e9dc5796d4ed3cc1e17feb95220a789. 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/HKI191800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb5f221c11fe754149e9ddd99798018335b946c7ece2667b95ce790ef02a253. 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/HKI191800104.
Danza paraguaya (Excerpts): No. 2, Jha, che valle!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a2b7d2314907e667109d021a7288d5a2e270269b795bc8cf4a427447867d8e. 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/HKI191800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e4b9dbe56e26882f8cbbe3aa46996df3bd72f8949a418fd8898b305979749b. 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/HKI191800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97b387166df4ed95d60e23fcbe5ce81a8b8c082e8e3c5192afd5a5f82691ea7. 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/HKI191800108.
Aires criollos (Transcr. C. Erwich for Solo Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bd2e7bbe7bdda8e6caae2b539818176925920eacea407b22649944c727b1b0. 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/HKI191800109.
Bicho feo "Tango humorístico" [Arr. T. Morris for Solo Guitar]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4609ed7672501842265033b9ae22c108f1d87d969563fed4f95cc6cb281a24e3. 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/HKI191800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6548ed507242d040524c5af032367f0b493c16fae7d9e8f9f261d2557d4dab. 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/HKI191800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463b4f9e169b72da0272c4765539f1c1a37d7846a30f8dd12fd4814e7f007b7f. 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/HKI191800112.
Divagaciones criollas (Transcr. C. Erwich for Solo Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76f6cc814ff6fa3767d1e7bc627d4d8091045de0e5bdb702d4582f2e11d486f. 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/HKI191800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56c27ee408b16020d0d91c5a067a9ec123333bea6c9fb2428dec61b57bc18a0. 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/HKI191800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5b9699146db446539815ef98ab72f8bf5c8f2f39213f520d99a1534c09eead. 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/HKI191800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d441b1b68cfe4b46592cfb16253ae1cc7a95b13119d6523e3af38fcf6a5a16. 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/HKI191800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0c3fd9a08e9ec94c760c9da7620afe6816bf52d5febe043b6d5cd6e3f84636. 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/HKI191800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518748a0505251cad164246e4d93135010050bdd6fcb7ab38e4e5edc6224a368. 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/HKI191800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57518e127a1c7edf7c2f5647fabc1fd75db3e768a12a83678dbd90f625e1f25a. 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/HKI191800120.
Danza paraguaya (Excerpts): No. 3, Londón Carapé
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ebfd2e8b3c9f6c540aac2e35bcdba5913f5674de8a4bc3305563aaed11aa1f. 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/HKI191800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca54ea87f934109299a71e94a3f76cef779092e2fae2c4aa3b4a3b8317890768. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/HKI191800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894b61340990ffc2e6b2206e331cec5f7ad8123f8bd02ab072d3490d79354639. 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/HKI191800124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dd3b066805d2616591c589e41bce5060d3175cd37db7dd7746f76a242ce18c. 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/HKI191800125.
Milonga (Estilo criollo) [Transcr. C. Erwich for Solo Guitar]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277618aba9afe984c6b441515713ef1410321a5935572ba0881742ecf2542c30. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/HKI191800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc491e3c160d3f6d36f38346a7b4918a2370a9c554d19808240ab67c519ca2aff. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/HKI191800106.
Aires andaluces (Transcr. C. Erwich for Solo Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7228c369aa585c88e0d80d131366f314b747cff0646de4cfb980aa9c4354b0. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/HKI191800119.
La bananita (Transcr. C. Erwich for Solo Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4120085ec4b2134d6a4c27cdea8e6ef218effa4a05f1e5b159183685f86fa15. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/HKI191800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3ce88e3643d45af73108660e1d5c401441062b60a3f4bf36e57b83f6f52396. 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/HKI191715501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6a17114807586f030f2d446ba7992b05599b815633cdf1c8b0d839669b71f2. 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/HKI191715502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc610e385ad7ac190748661f10ee8d0a971803177bb6506e5872e2647218f8fdb. 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/HKI191715503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf54b6a84810463472bd86065616baf5c66b09bafd4b0821fbf754ffb690ff84. 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/HKI191715504.
Schnee in Istanbul & Schneeschmelze, Op. 51a: Schnee in Istanbul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02c1d0d998300bcaa0262cd961159cd6bc29c2e00cb04aaa60b6eb60b71a830. 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/HKI191715505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9595d95bf677819af8a75945a1ab17cec1202f2bf3ff0180b6966c510a7e83. 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/HKI191715508.
Minyo (Variations on a Japanese Folk Song), Op. 50d
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdf6115b58454cfc5d26436cb1e4b9f6acc1030c6907ac6e54add41aeecaac7. 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/HKI191715511.
Don Quijote, Op. 123: IV. Revelación y recogimiento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9813fa9b1d62ed6295251eb6d3cd2dcd426041fe99dd171579fd31edc6188efa. 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/HKI191715515.
Schnee in Istanbul & Schneeschmelze, Op. 51a: Schneeschmelze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b311d277b9e1284985efecfed7a44f02c4b1887ce1b7e934fea4bc80089c1a. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/HKI191715506.
Uzun Ince bir Yoldayim (Arr. C. Refik-Kaya for Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac3cd161756ffba6668e81b0d77f2c3e3c647fd9be44940723898784e91f2e6. 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/HKI191715507.
Variations on an Anatolian Folk Song, Op. 15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b48a266816ab6f58627889e9292f6e5e8a8d675cefd123e2e6983159fd88862. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/HKI191715509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0fa0f9b032a13bedc686ff93efc97fe5b43b675ff83bebed08dcbfd0bd36f7. 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/HKI191715510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217c981bf8864df0f30bab2116fb064623a708a5b8a1f867ac323845eae73b7a. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HKI191715512.
Don Quijote, Op. 123: II. En el reino de la fantasía
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe9dff4292e5bfdbf73dc88a0929b954535caa6c05415ca6bccc594cb63dc6a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HKI191715513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b994f3984e66fdc8d2076ff670efc92a8b7a98b2ac65b57fc708b067859c8d7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HKI191715514.
Don Quijote, Op. 123: V. Transfiguración y muerte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0e61c93e672ca9aed77f9d6fffa36630d5329d9b0ff8c338e2ecf337dadc30. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HKI191715516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad27a1141a983097745699add453e76ec223f37e0e329526ba4db8a767cd2288. 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/HKI191601502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb699bd1d25fe627fcfa1c2d6480ff882af50278f79af14d2214bb2f24e43d5fa. 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/HKI191601503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96d6d7854ee9324204ed3f2ee9456c13e66c112191abc20e3eafaf2008a41ff. 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/HKI191601505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65543c0ad973d33e2bf93dd85f727893ea3cc4866fee7faa1aea871d103d531. 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/HKI191601516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d07e2b479a8e2e87b57b817e6be6f261a7e1a062506719dba75b41bbbde0c5. 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/HKI191601501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe6a9ddf650a77fac796af9b76191b15f1810d037b381b4d8a9e4ae52f51509. 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/HKI191601504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa35ca1966a1c8127db59221a3ce1e1b42f887821222fbb12571f372fe9e63f0. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/HKI191601506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd340cbf80a29c2150bc52be93732e057c47aac65e3961aa2cf2a1b660610f2af. 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/HKI191601507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8814bf0077e8e448a4fb7e240e7d9792794b9ffb987e2992aaff8c7aab1e2a0a. 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/HKI191601508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb1e83db25bf351e1681f36c9d5985346c44903ccd2fad2519e9772bf6b38db. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKI191601509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986f0af7e3296376ad61a8fe01e8a82a9edc03faaa64cb32b45a8f6c2c9ccf70. 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/HKI191601510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52765b2f53d90d8203072dbeb393f90bd1b31848bdf8b49dbab3a3b99b4b333. 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/HKI191601514.