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 0xb08857288d2a38d78f7c99013f2587c45077a6dd1c0f8c2c3919f450944619c8. 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/0b0e78da-0197-447f-8b40-100ab3fe8574.json and https://artists.proofprofile.net/proofs/artist/0b0e78da-0197-447f-8b40-100ab3fe8574.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 0x365c932c18682c8f985d48c4a8bf0695a46000b812b70f45c4ab5e7d15cee08d. 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/GB45A2300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfed34df131be5ceab63cede04b8ebe32362cb23ff9ede11c7d718d39971318. 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/GBCEL2400257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d90ac50d57fc8d41a24c3bc529e6005524e4ae828e4dd275149960b609c3fb. 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/DEG932402340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47f3725b3336255af2a0182786d472e10dd8c0b95aa0dd271db9fa84c633c7e. 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/DEG932401761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63e76b78ace82fd750636b22249483999e5bebf47a2ded5f212bb435e748dbc. 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/SE6XW2353499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa949d2c7aae5e50db268a66a019321953025dff6f8a69ef57131a0cabc837f32. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GX5D42200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43357c7d35c2382d8990f88b7aefdb0983ffe307796a40877ddbd8e2bbb801f5. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/SE66N2286556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799ffcab50eae981020393a4876132d573474871d09fd9ed6790a447d628d839. 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/QZRBC2100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9e18118ee3cf40c912baa52c281a3a9f7d8bf95df29ca5e7bf56ac31b4f44b. 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/GB6LY1600904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da6376c560c5ea082dbc1a6bc4f2bb8cbf870b13ca6ae3792953b99b480a988. 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/UKN6K2100377.
I Want To Know (Do You Want It Right Now?)
Everything Else Is Secondary (1-800 Girls Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cee4924d6872162e0cbad2101a708832a6e39bc03d71821ac5c96d6edf0d2be. 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/UKN6K2000638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98c1b537d8b1520852cece54b3bc3affbe65b6d39a70fba2b51cabac032278f. 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/UKN6K2000639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef1e6828ca82fcd28d83badb689904b791625cef72787d1fcf0aeeceeed42de. 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/NL1AP2063171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f352fbeae8b9592cdd9d77b3204670c294a3b4d74271103011d56d575cac69. 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/UKN6K1904420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e43e7d95f514a7a7a655e8d17752d4cafc96511841afc863e8bcaf6e370e5c. 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/UKLAM1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0094a1e1592bc1f101bbf31f30f8cf847788aeb42a25e2e24497bd95d3f0f5f5. 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/UKN6K1902684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205335866c3af7765e4f908ec5f45619c1c3888fd1d622e5d5d623a5ce4e46c6. 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/SE6I31939947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69097740b323b4879eafa16fb1c906852aa862ba318642e3fc1bbabd87517ce6. 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/USA2P1913766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0280f3fdb433d7cd9e49a4a9732e759e5f002844ba70af4f684ca5d41caa5620. 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/USA2P1913767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d3215ab68832f3080a4b057ee3acd57df273e2239af199b167c9f4b08bcdd8. 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/SE5BU1737307.