John Maurice Hartman (July 3, 1923 – September 15, 1983) was an American jazz singer, known for his rich baritone voice and recordings of ballads. He sang and recorded with Earl Hines' and Dizzy Gille
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 0x4518025f6d8a97474d5e7ed9137ebe71e7bed9fbed01bda602816db2906993f0. 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/4bb8fef1-cf03-4104-adc3-276eb1ae5a9e.json and https://artists.proofprofile.net/proofs/artist/4bb8fef1-cf03-4104-adc3-276eb1ae5a9e.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 0x060279f329976a5fdf37a765e29326cca8383ec903188e68f5bac83ed538c253. 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/USMC16352813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ab2659427cd0fd552f82742be64d724b15fa5d831fdb999fa1bfbeefc48e1e. 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/QMSGD1370081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92e69527130b6e6b3ffa9d1b032292c698f333d7651bc0b0c4b59ad98e7da0d. 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/QMSGD1370082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe1fbe7a28de82fe2989d3467d3ff6b5c6aa655b2f175394740e84c9c04dd74. 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/QMSGD1370083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb153dac9fcd5f6855efb5ec88a8e089d824f8a57598a62e430a5228640b6c648. 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/QMSGD1370084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea5aff413bc74a7581e892a06cd34643789cf14b90502131919eac2942f7e94. 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/QMSGD1370085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2051eea8027ca27bf74c0672ab460216db396d65506240c35af3b4f2fc06de0a. 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/QMSGD1370086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25c642c88972ee2f438d8ebd9cc337907b96e17d26c384453b179921a595d0d. 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/QMSGD1370087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23675e501bc57baa9b3fbf9ebb9c1667563cafab4ac3fa0bcbc2a67bb5afbf5a. 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/QMSGD1370088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8760bbc8ddc57e906569079c373d058a57af442bbc22949b11b530d61d570b60. 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/QMSGD1370089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781ed14495e87b1511b8c27b035acaabac57afe0440f91c602a2cb8b711b717d. 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/QMSGD1370090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275912c607b6d128ad0ac201361a2b7a326991ff8a34eb296b1aca4f7e4029c5. 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/QMSGD1370091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4d4ddb7e70f5389269f68b0dd9868774a51ca9582ef1451d6214a72920b001. 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/QMSGD1370092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c497d91a1e38f7e576fc9d90d20a9c212670316b7a94e3a2c90a7a484eb5388. 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/USGR10110291.
Smooth & Swinging: The Singles & Albums Collection 1947-58
Essential Classics, Vol. 74: Johnny Hartman
Four Classic Albums Plus (Just You, Just Me / All of Me: The Debonair Mr Hartman / Songs from the Heart / And I Thought About You) (Digitally Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6daf349402ab25bfbe9f12db452725513d273167ef8135c8858250b0b258877. 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/AUXN22198054.
Les Idoles Américaines Du Jazz: Johnny Hartman, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56dd88c7c566d4c3d260407641682accc11deea27020dc2ab128ce053b7158d. 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/QM6XS1575213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d9b97bc6919eef8a7b5e207bd00a1448e4500c3864aa4360933f6810cc32a7. 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/QM6XS1575205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7e1e09317371f60d59c7e0ce144f1d7c5c8d237c41d055a5d6690f2de4e6ab. 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/QM6XS1575208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d08f583979b6036b12b19fc5bba338aca68e8b8056797f00880d2c3aee2a0a8. 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/QM6XS1575210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a58f8c5c24fb113affbf0bef11541c6ab2be0cfa1cfbe9e2b8d8b2e9f76b7c. 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/QM6XS1575212.
All of Me - The Debonair Mr. Hartman (2014 - Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e01f267b3a0cefaae4d4b445a204c615cb418fe68a9c047cfb928687cc3001. 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/ADA010804601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe828042122d128c160d7a6980e018df203767c353efbcc5ee42dcf5dcad07a92. 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/ADA010804602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bd92e9baf58d105d7227bff5f5543f60db9e1519da851ddd13b8af8668218c. 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/ADA010804603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f70f3e018eb0a1d60bf66e8dd48221243b2fe0389a94e16ed8618c69051cbe. 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/ADA010804604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb702dbf46b27be9e2d2060e433e51adf347afcd7fd3b62be2cdd8aef24dfc065. 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/ADA010804607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdd5a042736f9843876a185be174a59157ea49ec90a96e508f1479b214d8d75. 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/ADA010804608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3777a6d6cea60e2cfbc41f9375f9d06017c5e48a37f7ecc683cc082edde19e1e. 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/ADA010804609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5c987e699db973e1d46cc9a3ef62e3faf33d98f7ec96b7cc94a21bcc7e7b69. 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/ADA010804610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0002371d57f2f05d99881c7f7492a6730caa96a20bc0e5dbe5c0fd9ef632d3. 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/ADA010804611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88dc7a983880c1db9b9cfa7e22ccf8c5fe7bfafb61415d9c9882608210c3162. 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/ADA010804612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b3fbed57f7fa862d3e8430d93fa4823e1388a66a7abbe424b7ac768220a0c4. 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/US1A19816502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359435f22330a3c16bbb7c8d7d7b3d4c752d6164aced950c801ea51a6b483200. 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/US1A19816503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf5f322fd3d716f541f90688770ff7d590ad7162a2abd6f198ab3a6a8776db4. 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/US1A19816504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c497d91a1e38f7e576fc9d90d20a9c212670316b7a94e3a2c90a7a484eb5388. 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/USGR10110291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fef85e8bbcc936cdd7ab6123056290f8a0046faf1e681e00016a7a12c1bbd6. 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/US1A18018101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584cb85434c511063b56d7dafd6aa931efa012e51a0c507c04a5ed04db2d4e08. 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/US1A18018109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0cea8472cda142f823bfba019cb332a57566461cede9ce7ca6437c79229a78. 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/USMC16652822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b68ff5a71641a0c8c7f6ad8e12c83345dc70054fa96bac4c3edb94089146c76. 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/USMC16552824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cd6c15f1cd7e230c10508c9c7572fcbaa4fd2576c1b6c0869f64e67e1dbd3f. 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/USMC16454561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872ed077980cda3b4b6675156048365bc7cb42442e92686438574aeea0f3fad0. 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/USMC16553888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917e1c2c104c3be66e3324fdfbaea50b674299a0de89a4a2d3138da1004c7b89. 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/USGR10110277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a88049f6cec8884ee68549e5b09f30c854764b00039e6a6656a7c7081046156. 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/USGR10110278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4d625d00846a8b89d85f669548939a79bd574a1fe76a8a62dc50d728868f3. 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/USMC16454862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa192cde9b2b535df063f1f99b702e61981436351295ad3e19134dc57d12db2a0. 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/USMC16452817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36ac2915c89cd1d09fd583b3a7076cf0ec771b9ebc182bfc946bec4b8314401. 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/USMC16400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a6ad568200c927708cad64d67ff774b77708c0cc24c0cadcaaccea79aaa3f6. 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/USUMG9900589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221c2d2047d8d1417e4c1eccd68c1fc93cfd05a79b6461e14165a12f615204a6. 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/USMC16452819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f664a12ca7dd13f354fbdf2b58c3903c13ecd4ed658949359f14a05d679019b. 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/USUMG9900590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0896109021506121ec4638a3f913c5fb64a1b245f535a4745707fdfd71cf9e. 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/USUMG9900591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d44f4b098001eaecf9234839f653d18817a7c6ef38eb0eeb5a2235109a7ed03. 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/USMC16452820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c08e7e91ec7e5e4ed0ea13e3c1c2b5063271647845584dc06e68fd19dd04b8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:17:52Z), 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/USSJ10001121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc696ee645d5c26cdcc5a2448628fe7686ff104ae6cb77b1f50f3d4baf22375d. 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/USSJ10001122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311cdc2ff6792bb6567872b467ccfc8fbfee45884aa646ce4f08d197a67ce504. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USSJ10001123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b671970ac4c09342c41814b3c7d62941319fbdaebe4777c48d1062557d87dc. 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/USSJ10001124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc216575c673ef5085116d5d542e3d0b59c47d8af0443b8439b80bad4a5829c58. 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/USSJ10001128.