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 0xcd0ae3ee477b199baef32817e7ac788f96d935ef81d0c187c59ad36716ac8549. 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/d8d203bd-2978-43ec-b29f-86d6a2a70447.json and https://artists.proofprofile.net/proofs/artist/d8d203bd-2978-43ec-b29f-86d6a2a70447.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 0x2c937cc7325c2e2f08729b62e7e8da485abaf07bd93d0338e9b236b1a5807e5f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEZC62206733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57307ac68b360eccf5b9b36896ff6bf1d7cf498878b7d801a40a5df8d9de134. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEZC62206734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219660f012dc76e812ad1efa87e076fc98f7bb3ce3fd67697fc5cbdeed2e3f48. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DEZC62206735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a56183462feb3589e3bfcf92d750d77e39a6dd84bdd183cdbacbdda85ff9c0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEZC62206736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702aefa833ee22c8663ab2ee37d427aee9b91b1a5a87db9fb77204c81cc553f1. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DEZC62206737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7664cc362a78a29869190ae36020c5552565477635f27afffb41e417fb4a75. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/DEZC62206738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26451ac8414a804233407dd5aa2e1cc9b6b93dc485f34fa48d0c7002b23f40e. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/DEZC62214305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb133d0bacbb3849c1fb78b79d4ee25ee8792b03102513b73885dffbc5fa746ff. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/DEZC62214306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a4a43d5dfb2f6dfb7bfe9bf45bafa2ba3d80b7c7ef8a9b3920a3fb9a204594. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:53:41Z), 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/DEZC62214307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1233d77b0f3bbb7394be846d831edbb50814b645417e3c8b867082069ad76a36. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:02:33Z), 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/DEZC62214308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67d9095b8664426215698c2a2d5d0a15ee3638197b3248362085f33978a638b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:29Z), 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/DEZC62214309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bc7dc28dcf7c35a0eaebd267ff98cac41a1f78663de1af1d2062fd0da401e8. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/DEZC62214310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc628afdcb5a01aa27356b5e2ed59736c299c27abd25c980ae6843a6e15ef9510. 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/DEZC62214311.
Drums Only - Classic Rock Grooves Volume 1
The Running - Classic Rock Grooves 144 BPM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038a272fe319c5611812e93ecbafd339229919d07b7512262d97565818bdefb3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IELOI2229908.
The Own Way - Classic Rock Grooves 135 BPM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f85ee1ef747cbc60905def1774f749e82843ef46676b186f53c9db965e0ae7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IELOI2230348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09eaf1d9645d71316b09ccf9a1ba3e04e437c2766cf58b68266896eadec8daf. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/IELOI2229912.
The Highway - Classic Rock Grooves 170 BPM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdb2af72222a11634585e8f79165013259a732b33612b19e8475c390f908a90. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:36:54Z), 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/IELOI2229921.
The Pig War - Classic Rock Grooves 92 BPM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a69f3c2d4478422ae42c4c89f4fb6618b3c3c929d11757d3dc6b124b660ba15. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/IELOI2229910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe009556fe268b8a7d7aa29b8e5bbd48aae5a7b6328c6996ce08311d6d4eb78b6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T09:04:54Z), 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/IELOI2179318.
Drums and Percussion - The Latin Drum Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6747b93f3bcf3157b40dfe5dafb0f85353bff9da76c7020486e879477a55dbf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/IEWNY2330796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85af2e65488e62d07e00f8a1b2c26f6e9ab71b39b387a202f1cbed3fe093ab49. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:43:24Z), 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/IEWNY2330797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547bbaf48202676756523d7b9041408111eb44c1e1c7bab4eb57147ea2cd54de. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/IEWNY2331492.