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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c2a3ca8a92a64ae4a3905e42c0b1af82a8337dd44e812d1d58fe2dc0809043. 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/9ee2bbf2-848a-41ca-b86c-ca1195c28f10.json and https://artists.proofprofile.net/proofs/artist/9ee2bbf2-848a-41ca-b86c-ca1195c28f10.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e207ca6c4639654bfa220d698c5a89aef7dd62ef2bb3625d6faac779e4f6060. 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/CAHQJ2140317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d629cfea0c591e25e2f514ec8c81c362e430165de243ecdadaf5189b451a1ec. 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/AUMEV2152384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd2d9957b8db1ce99437e3aef410db2675454aac96659836890ff8bec7fb302. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAGOO1946343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e933f22d9440415978dfbabd20cbdc70af28d91d8ac79bddcffb13ebf0e48d. 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/AUMEV2170139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27e97ef5ffa9369c3baecd85b7c33ae3a003f0a215dcfc83e72ce2d16c306e3. 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/AUMEV2170191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b49e0b679dbb3101341b9107e3bb0bb34b158b625b45beb69269acd21e37cf. 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/CAHQJ2004547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f403b992ae0f7e3fbec44fcb7c6369ca9f4789de9e7437132586fe58c4f3470. 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/AUMEV2148177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8a33c09fa57e0e85498e13ad72b7ad194590ab20b2db35796089fe28d7238e. 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/AUMEV2169910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d9a760f50af57e72267124fc2d4e7cf1d031166bec66072a08893492963fd6. 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/CAHQJ2131154.
This Is Classical Guitar: Music by Sor and Giuliani
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f483031b49e7154c6d3e28b40b34b7f39a85bc098d26c2c262b8ec94d5aa67. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:27:03Z), 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/AUMEV2156605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455983dbee03cea0df0d08029d722d4bfce68ed432c376a7d963f4766735bf76. 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/CAHQJ1991762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6c18efe98f8aa2dc7b8327d3b751ee39f139938e5c113b8f6fb374cafed9a9. 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/CAHQJ2126097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a8a358a75a69db9b652268d8652c64b3b177828e1810a5495de6245b41849c. 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/CAHQJ2126092.
Sonata No. 14 "Moonlight", Op. 27: No. 2: 1. Adagio sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba94dabd1b1217323253a6bdace1b8748fc4a719de80bf3034b148e6d29c20c7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAENV2029516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600a58df72777e3bebc165900815f7d48504023f14a4530bf58492a396969947. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:04:50Z), 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/CACWV2075774.
Renaissance: European Lute Masters of the 16th Century
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e95bb85164b42034ab27370fc735c7faf2f7c03666f14621d4cdb663a6eafb. 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/CAENV1859222.
Jürg Kindle "Fingerfood II" Annika Hinsche Mandolin
ANTONIO VIVALDI - CONCERTI GROSSI (L'ESTRO ARMONICO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3707966390cb8bedef9bc6cd6bb5cfe9b4a80727a693ce2079ddb57d525ae3. 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/AUGBT2414901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ceb56c95b7ff71271766f5350ffb12253ecaea991176d51c6c94542b2b2071. 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/AU3SE2401147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc5f8d50cad6fdc63d29e2a4a33f756944f826eac1145ab9cf1fd9adeba884d. 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/AU3SE2401146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fd9dcf2878cef59412fa7f8e7bf4b361b2a02720d2b1c2f5baf7b7d3d33c77. 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/AUMEV2454672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6c81467d716b5ae6bd83396fe7d59158a6102d442713adb152a22b2670f639. 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/AUMEV2445536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a508dc85be11f7deddcc5447b5dda12758e4767ba34421490d672bb4f3fa637. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:43:31Z), 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/AU3SE2401088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593ca7ce0615e5893b6b79fe08adbb01e4a935e412a98033c56b0f987adc63fd. 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/AUMEV2427396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf338584aceb05e8fae645c154128a3ba14208cb445aec123c5ac41ac2676a884. 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/AUMEV2404544.
Les Barricades Mystérieuses (arr. Jürg Kindle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd77d0de9030cefe3fcc864ae2c70ebf2709bb792c0988ec915b7871799e08da. 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/AUGBT2303872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472630f97a65967d2c9731e45fa15fcdd8f527e475a78aa03fa4ed557386a619. 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/AUMEV2382068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6c81467d716b5ae6bd83396fe7d59158a6102d442713adb152a22b2670f639. 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/AUMEV2445536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694c35543826794ac42a00b16ab0d593204438acf03b508fa5ccb1020104f3d8. 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/AUMEV2327202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b733467fd46864d6b6a1492962bf2ace480461b58e7d4ce6438121b388edaf. 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/AUMEV2374214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3707966390cb8bedef9bc6cd6bb5cfe9b4a80727a693ce2079ddb57d525ae3. 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/AUGBT2414901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf338584aceb05e8fae645c154128a3ba14208cb445aec123c5ac41ac2676a884. 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/AUMEV2404544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb506873fe46a6e85567066d52a7634fe92a0e90a409da1fdbf1a9f138f8dd36b. 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/AUGBT2224705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593ca7ce0615e5893b6b79fe08adbb01e4a935e412a98033c56b0f987adc63fd. 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/AUMEV2427396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc971761cd240c5266d73d24b95eaba154dc622510da829f641b0c0fcaa4a07ba. 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/AUGBT2228600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe165f4b4a377de7794094174ade327f977e0f677cca89137cfa9ea3cb6c29996. 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/AUMEV2245122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a52cc45453d30dfabc5f0f81210136bfed252b7b13731e5a8420bb09e5048a5. 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/AUMEV2332275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd77d0de9030cefe3fcc864ae2c70ebf2709bb792c0988ec915b7871799e08da. 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/AUGBT2303872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fd9dcf2878cef59412fa7f8e7bf4b361b2a02720d2b1c2f5baf7b7d3d33c77. 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/AUMEV2454672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c3a5e05a27af32605fdd5865862f9928e21b5182bb6bfd5c0b2ac38a5adc29. 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/AUMEV2492696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553ca126be1639d3fc365f0e8a0461663ca6766b2afbbc1ecaea758d5d047f6a. 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/AUMEV2543187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdeb022b904db6e27ea5705cd218acb80aea4d23590bf8ae92e80ca4c6b8555. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUMEV2537451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9505adf0d6e25557c5dc103c3a806a6e368074c63a96bbe1d9da20654dfcea5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUMEV2524662.
Ständchen, D.957 No.4 (Arr. for Guitar by Jürg Kindle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5901a9cd7c15eee21b93afa8fede48cff0eea87b6f6b2bd099a721216a2eabe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AUMEV2509026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3886a3e17e27469d8cdb626c1659c4a7e7cee97324969ba70760bd277be821. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUGBT2475672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9bec2c68fa9f28d6869660889b977ba5f9d52dbf13f6c785de814c4942f7f0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUGBT2467653.