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 0xd83e2bf8aa0fdfcc997399f6ca3753a678a845ee8bb102c5e5d68756ef8f3a81. 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/f44b7aa9-3ff7-4dc0-bb6e-c28f9b6b837b.json and https://artists.proofprofile.net/proofs/artist/f44b7aa9-3ff7-4dc0-bb6e-c28f9b6b837b.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 0x3ecff9e1c1755e6dddb33457b68bf8e91f81a8c5edeaabf520d7846b5e8322fb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a36bd2e9d805aa50b0a80f0192ff4e696381387a409ad7782a1f376891a8f7. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/GBLSB2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f27ade3f569884768f4204db4fb1bc33fc31f91f9f79bcdb3ec345633610e63. 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/GB8KE1653198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01d70a3e0bdc8bd5e9e2c1e3d0fa8bc5aada36ae85ceb2cfad12eb75918a4af. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R1903092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd9b87e2b320583f0a4c8cff97bcf2c793ab5861bef89204a8d2d4f4de2d1e6. 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/US39N2301011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65024b6896f5a30d0b61cd911392598bb9e2cfbe57cdc05c01fa49162edf96fa. 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/GBPWR2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6cd5f02a8a86e3dc0a11e9aa13d590d6ab812509106871936bac8f654ca185. 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/GB8KE1651940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53887ece2581531d25e663711e053d2a1a5a952fcbd83c795b6b3e9393352846. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB8KE1651941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0787b3ef20c263bf327a95f25ecf2f6efeb8ad520ebb5b89debcf18f7420cd45. 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/GB8KE1651942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7d108150411ac6b2b6b07fc7c0cedd1439bbef44a362714b619b2037f16e64. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T18:09:31Z), 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/GB8KE1651943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c41273ae5681890011abc176a638723066e2ded36ebfab943d9b467c64b5e7. 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/GB8KE1651944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe874fca8f9202616b5a9d13d40cca9e46285a895f29424dd011de020cbcf814f. 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/FRX452142515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe874fca8f9202616b5a9d13d40cca9e46285a895f29424dd011de020cbcf814f. 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/FRX452142515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10be15898e0ae2ce5610644de3f0a37dcc60663bda43ba04b7231e621920d251. 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/GB5KW2104685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9993c7413a6623ab80cfaf6df49ea192a4bcc2580eb98adc391fbdb4f4b98db2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US39N2310760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cbe17fde04c4a199f48ea7f723a31b0599f81f14662b9712d66aec953ee5db. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/FR59R1803550.
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 0xa34f646c40080fa8b7b4719b4ee228c1ebd4d49802ce2314e44587c178c3bc66. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBCJY2000098.
General Levy presents Welcome To The Jungle + Mix by Deekline & Ed Solo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802a5c6e3e0ae85f28a9e9e9773bc4add9d93b1f8fd10a90b06a76d3b962b7c2. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBFG92000040.