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 0xe65f0c2e386aae249ae1e73da07550e910c870db2242f53a5e58e5e1fa2d5fba. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a029b69-7d80-4136-8fea-82c442f17e16.json and https://artists.proofprofile.net/proofs/artist/5a029b69-7d80-4136-8fea-82c442f17e16.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 0xe5b8496df611cd20d34d454b08c11c82125bf610daf80151ee6cb3c50dc4216a. 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/NLE421903301.
Dido and Aeneazz: No. 2, Peace and I are strangers grown
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5a03ca29183c56df04be163395617c9ace0b58ffd1507c17aeaa7a56b24c33. 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/NLE421903302.
Dido and Aeneazz: No. 4, A splendid time together
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e18af1d1c4803890c099568aff613e87c7b24d0211df3f6e57b4f8b30ff3ab4. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/NLE421903304.
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
Dido and Aeneazz: No. 16, With drooping wings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a10c7c483c1a8535de92813f12a9b470f3e1db7cdb4b512eb2e4ec428aadbf. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/NLE421903316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465e80c8b1da55ff03a509f1824ffc4ffe465711fa5be26f6e0d6c696c04843e. 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/NLB151300885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9710e2ea9185f7f6c247e61959086c733cdf0e1a0c8e829a9d499e6aadad7bd4. 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/NLTR41500009.
Goldberg Variations Bwv 988, Variatio 3, Canone All'unisuono
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797a2eaa928482b2fddcfa31c9bce66bac8c655a9289ef95cc4f78d63a212704. 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/NLTR41200004.
Goldberg Variations Bwv 988, Variatio 15, Canone Alla Quinta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38adc130a3e1ba7807d960f681d386623a802c5a0df6706fbb9d372cf0f9e80. 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/NLTR41200016.
Goldberg Variations Bwv 988, Variatio 24, Canone All'ottava
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dffa6f729c9737a00bfc272e0d177e9c6598948e56cd7e7e934e65b4aec8ff. 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/NLTR41200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d5c80cc7ad947d2431eb0947e6cd056b828fa78501dbeb0de33461319c1478. 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/NLTR41200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f94187b61725b620bf96d524f1506364dbcca457eb4424156cc94a50f6376b2. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/NLTR41200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffd37dd29ea92d0a6ba058ecdae877104fb478455b95368d8370a62563cd613. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NLTR41200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1dfc85a99b09d87a71f441679497c0af14fc4709ca86d7755436385c3dd79cd. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/NLTR41200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e588ce9c8709bbdc83f8981e226a25cc68ec7b6117c4b99fafdda962a49f60. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/NLTR41200006.
Goldberg Variations Bwv 988, Variatio 6, Canone Alla Seconda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a18cd24cb691d6caf7be6ce27e244ebe08539709b55c2a9b593a7d1ec44143b. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/NLTR41200007.
Goldberg Variations Bwv 988, Variatio 7, Al Tempo Di Giga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ec34951cfdab31fa0465fb82eeab03863553c6193447b7f5acefc5492c7766. 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/NLTR41200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb939b6fbfb87b9706cec3217de516e139bf177302232f7046a214a6bcb5800. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLTR41200009.
Goldberg Variations Bwv 988, Variatio 9, Canone Alla Terza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ba873e8b5220680b963a30af4d54cacd90ae7cbdba4f194c507ecd05dfb9d2. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NLTR41200010.
Goldberg Variations Bwv 988, Variatio 10, Fughetta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c78835da457360e90a0d68e26880f9e34065c41ee79f8fb593116cb25edf5f. 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/NLTR41200011.
Goldberg Variations Bwv 988, Variatio 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853428126cdba232841fba268ea88dd478a0a7b0b29d6ca742d214546848ddde. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NLTR41200012.
Goldberg Variations Bwv 988, Variatio 12, Canone Alla Quarta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5944adf0f2daa7184b4a33f2491e6601862825338536048369e1887ffe7251. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/NLTR41200013.
Goldberg Variations Bwv 988, Variatio 13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe654ff89fe4780b49fcc32925fa126356ea42d2dd19758eeaa95b2b3940f0813. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/NLTR41200014.
Goldberg Variations Bwv 988, Variatio 14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447cd427d6cbc824364c0e000f8598478769cd100d3ddb16d97f6a160cf5148a. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NLTR41200015.
Goldberg Variations Bwv 988, Variatio 16, Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1307b116553a989535ad55f5daab246236f653c501a36c33c3c0f6e3de8cc705. 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/NLTR41200017.
Goldberg Variations Bwv 988, Variatio 17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c55b1e6714d2f66d044109ae09dd42b32b4fbd0fc49f575e20c9da989b801c2. 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/NLTR41200018.
Goldberg Variations Bwv 988, Variatio 18, Canone Alla Sesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977d512913cf42226c8115cdcc814136dd2110eda2015fd3cb272d52ef43f877. 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/NLTR41200019.
Goldberg Variations Bwv 988, Variatio 19
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4844f714bf330bf6fae4773da9f4057868d5121e629818f80a0d76d7605ce543. 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/NLTR41200020.
Goldberg Variations Bwv 988, Variatio 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd016feb317efc7c3f6f46c94aabe9a3ad791e6450caf6012165a6b1c85d1aeb4. 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/NLTR41200021.
Goldberg Variations Bwv 988, Variatio 21, Canone Alla Settima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bae6e2233825736ee57140a3e422d956092e7112237dff24d4939e3cfa9bb26. 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/NLTR41200022.
Goldberg Variations Bwv 988, Variatio 22, Alla Breve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb747f05b514230e8fb36fe2887bb3f0727d788a2cb8b904cfc413ed7820f9331. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLTR41200023.
Goldberg Variations Bwv 988, Variatio 23
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfe0b4a9663514e515b7385bfc798239eee6a450dd67f69bc5fe540c1ab5a52. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/NLTR41200024.
Goldberg Variations Bwv 988, Variatio 25
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483e7b14fc38851bb9414501db26fd6a44f6e9ef5fafe8fba916b4a01f1c0939. Chain 2 (Bitcoin): anchored in block 960165 (2026-07-29T23:29:40Z), 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/NLTR41200026.
Goldberg Variations Bwv 988, Variatio 26
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da5516827a64c3daa0633878c37d6a190350e21b68ede47795379dc3767c2bb. 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/NLTR41200027.
Goldberg Variations Bwv 988, Variatio 27, Canone Alla Nona
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0157605502f148a05f54c7d02632e6ef35b2cac4699410458c5d0d6a7f0d32. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/NLTR41200028.
Goldberg Variations Bwv 988, Variatio 28
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c98975934e1784b3a2d4d07a6a595b489aae2d46742b6fb5a397c363c85aa9. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLTR41200029.
Goldberg Variations Bwv 988, Variatio 29
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e52a8841c7e41a2025e8120dcd2ed6f685d88c79181586139fcf229a1d0aa7c. 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/NLTR41200030.
Goldberg Variations Bwv 988, Variatio 30, Quodlibet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfa019f65f70aefdc6b74c27d75b9973e2e6d6188088b774c016c3cdb149f76. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLTR41200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bc481cb1c821c0dfdef804bdde155c99b2738a663e34d423bfa23b25171148. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLTR41200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0ab8315d72af670c17066fad4d693560d6acea8388eaa70108ac97a21f9753. 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/DEB240537418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1dd1686b401ee46c1372cc2910ac74473a90323764fde89541cbd586f44aa6. 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/DEB240537401.
Adagio für Klarinette, Saxophone, Baßklarinette, KV 411, B-Dur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f670f08fabcd013167c4ee0aaa160e4ea9c6794c2918b28032150c6df9b97b. 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/DEB249777005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb842fdc142cd8dbbd1a2208e1f80a7367bdab82d6c095fb9799914e90dec1969. 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/NLE422304619.