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 0x1d2d4ea4290d5dd4249353e3ed52731b8d3162e4bbecbfc2be5238ca2d585f3f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f0e52c8-e9a8-48ac-978e-40dd2fb353d3.json and https://artists.proofprofile.net/proofs/artist/8f0e52c8-e9a8-48ac-978e-40dd2fb353d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lullabies for Babies: Mozart's Magic Brain Growth
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 0xc86dacfc6ecf3d04f1b089332242019d2e3c8770f3a5932c68ee64e4a3f88322. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZTBB2444920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92412b2914766218f01c6bf03d1efa25cc1e2a35772eb8b70e3841488f385745. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZTBB2444921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7783b6f9da152e489caca32673c234182014433623947bc1defe1ec17f068f7. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZTBB2444922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d22d0d5ad6dad57647b5d2a5d7d8aed4b54a288f959a220034f16cc4fdcf19. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:30:16Z), 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/QZWFL2457697.
Orchestral Suite No. 2 in B Minor Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4fbfdbe8bab3d7d32d99ef6072267b77a564b92355975e7f7062d225a6119f. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZWFL2457700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5af4b14b5b1ac5508f881670fc431c6d2e2b0d801c2c0d87ff9ffa5fb010988. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFL2457711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e82bccc2615f262aa4b5739032e320245aaabf81a7b166c168a2c4b73ba7e96. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZWFL2457699.
Brandenburg Concerto No. 4 in G Major Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1fe7aeabe3bb53c5373a4306f9b0e6237a2e164d99c674999f9ee80d015261. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZWFL2457705.
Brandenburg Concerto No. 6 in Bb Major Adagio ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56865cd64778e8ea103e91e90e05c4cf1733cd19c8ff04c7262a99469a71e3af. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWFL2457708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7f22090d229adde0eb65f91a07e06168300f3996f0d5766491069c90ae1e60. 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/QZWFL2457696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d22d0d5ad6dad57647b5d2a5d7d8aed4b54a288f959a220034f16cc4fdcf19. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZWFL2457697.
Notebook for Anna Magdalena Minuet in G major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c49da4cabf4746f356ea7bf364d08c5b68226531d3d6f1e926de526d29346a. 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/QZWFL2457698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e82bccc2615f262aa4b5739032e320245aaabf81a7b166c168a2c4b73ba7e96. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:12:14Z), 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/QZWFL2457699.
Orchestral Suite No. 2 in B Minor Badinerie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd4fbc72cd6109c4bf05f273637c9865ff3375dda59076e005d9f0200d07974. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZWFL2457701.
Orchestral Suite No. 2 in B minor Polonaise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9918412767083b8b352ae24f682a32af8fa0a15b651d07c0fe86b021a3071b. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZWFL2457702.
Keyboard Concerto No. 5 in F Minor Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3a549521a8ff5e18e69f61c202bee9503392a59613055113245ab30e122b23. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:46:23Z), 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/QZWFL2457703.
Brandenburg Concerto No. 1 in F major Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f90fc1fd9a878ec5937a64cc21d8d2589f75a7c4131c380cdf7105bb0e6b0c0. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZWFL2457704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1fe7aeabe3bb53c5373a4306f9b0e6237a2e164d99c674999f9ee80d015261. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZWFL2457705.
Brandenburg Concerto No. 4 in G Major Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9283693b12716e0ffe12ffe21cc7cc327b6c9801f5e17544eb2452e2ff7566. 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/QZWFL2457706.
Brandenburg Concerto No. 6 in Bb Major Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547facf37542287cb9dfb21af17cb504e19f2b1bdb6700ad9cc61ef0d7f541e8. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZWFL2457709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5af4b14b5b1ac5508f881670fc431c6d2e2b0d801c2c0d87ff9ffa5fb010988. 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/QZWFL2457711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50604c597d05f490c6e93648f00aa1a4623847281c7f0d69ac2c3a62af8d8409. 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/QZZ762419718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ce20fc0ad7385ef44becc10cec297821087de51641d85cd80ca583a656c3dc. 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/QZZ762419719.
Symphony No. 6 (Pastoral) Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe62d9c5989cdf3afc0272033ed43649f4ee10852825bbcf1f9b5ce7defc4071. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:59:33Z), 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/QZZ762419720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7c3cc81c7b6b85b5b5697e8ccfb054fdde7a45bbe7ca48298e27d7661fd32a. 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/QZZ762419722.
Piano Concerto No. 5 in E-flat major (Emperor Concerto) Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6363b641822f68d944f4fe3a9c6e5e298b5b0b314010d836eb27b2d6c78549. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZZ762419724.
Piano Concerto No. 5 in E-flat major (Emperor Concerto) Adagio Sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555039d24854c82b4e1bce375045047c055a3a7386b07ef562ddebed2d7519b3. 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/QZZ762419725.
Piano Sonata No. 8 in C minor (Pathétique)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d0caaadfcc8a3c981d52c442f643190532ac935cf20f71368fa55bc735353f. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:29:33Z), 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/QZZ762419726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5452cd29e8388f1b6e881ba34f61628d66db35d1ecf870f416f2a26c4548f5b7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZZ762419727.
Piano Sonata No. 3 in C Major Adagio ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb759f93aa0e4486df00c072b361eb184eb9e1e2067dd1a023ef422193e25caac. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZZ762419728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c8f063a63dc324810d507cc8dc831dcfed7727641a07c8f695a0d806559817. 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/QZZ762419729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09043648a2f938e65ad759686e40ee3a7dd4b961cb15f021663fa9851ad04474. 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/QZZ762419730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db7014b75b8b5c67b71db8a35eaac33f7b4f450e0d5661c44f4a7059ff5b412. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZZ762419731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e68a303f6625cf89c6181d9d90abc7b73df1b0702104c266acab51a772399e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZZ762419732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598880ed5edde98d202934736434e69d6a6d36614e2f350c5e160ee18040544a. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QT3EX2423187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8bb4f73f2810f31e25b16315976cb0a3f8513347a798ff1b9cb1956daf00f5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:22:18Z), 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/QT3EX2423188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3992e5c961e52dcd46a93f577501a2a4f6048c04cf12360d1b6ed947d608d32e. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:57:53Z), 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/QT3EX2423190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3a808295af4530e9d8b1b974c40917972e21b1cf374de66fea42d259408f98. 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/QT3EX2423192.
Nocturnes Op. 9 No. 2 in E-Flat Major Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f23561edbf416cb9b5d694062751a78451c660f008454b37093b06239d69877. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QT3EX2423193.
4 Préludes Op. 28 No. 15 in D-Flat Major, Raindrop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77f4ccfe6c90a4843575b41fbad59c2698f64a1be6573a50cc5faf2a6c4d6ef. 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/QT3EX2423194.
Études, Op. 10 No. 3 in E Major, Tristesse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2377e0cb4df3bbd2176987f8db78bc79ca681a79043e2fdd1f316b78e2ed0e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:45:18Z), 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/QT3EX2423195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c1111e5465d47f184d2bf7c4cab31f70772fb0bb850f7ee1e7f4cefc0eaf6c. 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/QT3EX2423196.
The Four Seasons Spring Concerto No.1 Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9527220d49f2dc7714d2777802fc18ff6f43be03448c3f1367b662f56e02d0f0. 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/QZFYZ2584496.
The Four Seasons Spring Concerto No.1 Allegro Pastorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa443a260bd96b70ced124a1fab7aaff5ab359a5f0fe3440cc1a760c4c8c2f701. 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/QZFYZ2584497.
The Four Seasons Spring Concerto No.3 Allegro Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62d2694dddadd68e299fd2a14e038368fa862dde63bfe6afa199ede940dd8bb. 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/QZFYZ2584498.
Concerto for Strings & Continuo in C Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b4672655a6740df1c2d060bcb5ebdb08470499a05f719e721a3440cefba849. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZFYZ2584499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c0c8336f3f7d3b21695180a8d0a83d8d53f836ef35d913fe84ad7201aecce5. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/QZFYZ2584500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0c6582ebaf4f5dda536e69fe969700ecf2b5fbe59db1f31184b6abd361b55e. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZFYZ2584502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd384484ee53b8cf8237b1983fcc318c315fb95e6acb910250c886f57a90eaa55. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZFYZ2584503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6998373631e0c5db11dc8bb39bda9d958029df1ff55e12eddaa0c9eb01a18150. 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/QZHN42541802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308ef09240b0d5ecc4ac470920eb6654b3b63eb5ba159ce0f260a991cf0ff90a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHN42541803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04af8e0a0482f34aa5c7773d7a21c309f13d4029f50d60da49c5f77ed1bf58f9. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZHN42541804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed37351e1954d0dd380cef7dd95e1bec2786b0c62ec82cec664da1c74de99be. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZHN42541805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996570eb6c3f055c743d3f2a4de6cbb233f9fe63874a6b876253607d8f746159. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZHN42541808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a083fb2cc60652bf7d6705e810ddcc76cd8a98a540de9930728b37953b6442. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZHN42541809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b6504c0f402ad517518730a5ccbd4ed632d5afb055ba5200a434441eaeb1b7. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QZHN42541810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02392db055493092227ee8d42f17f16de0625d37170c61107aab972bdabc4c8f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN42541811.
Clarinet Sonata in E Flat Major No. 2 Allegro Apassionato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6e48dc7ef61def12d24c1265341954f4da03c19384bf830f3cdf44e94b2132. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:48:17Z), 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/QZHN42541812.
Clarinet Sonata in E Flat Major No. 2 Allegro Amabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b6c447a17b968e8ebb7172d5d90cbbd8aa584e67f0ea7fd58d000c239def99. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:07:13Z), 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/QZHN42541813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcb78f0764b7b816e5a1ca34759b2a5b9e628053d60f00abbb5d87dd7be1ab9. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZPLR2576371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88450095702527355fed332af134de80188cbe2d32ff71f067b910a378497a49. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:40:04Z), 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/QZPLR2576374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7bb5a23b8e3b3eb7c1de30e79d59bf8e6da29d6fb22ba828a9906307b3344e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:50:25Z), 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/QZZ7T2509626.