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 0x4940596076b886fd5d9c57454ddb73ae7f73e8301763f32fd3b2e3d5ada5c4a2. 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/88a69bbd-628a-4043-9313-4c98434aa8fa.json and https://artists.proofprofile.net/proofs/artist/88a69bbd-628a-4043-9313-4c98434aa8fa.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 0x559fcfe25c05bd7c2a3c8058eab6e63a0f46cdb9c74fd137d62513206bee62d8. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USA4C9805214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8d15e466b537d6bd3b77070913afe7f6137d0d093393344d1536bde754ba7b. 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/USAJN0502801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820968e25d06f55f5e6b3fd21f6566d1c45258709379e4e5ad4220b8a0567cce. 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/USAJN0502802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949dee3febd598d71b6893ebb757701396bb27b3fd37b093cf7185aa86aab8de. 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/USAJN0502803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c8c7628ef5592ce4931d37b0b93ef6ad38fc640564353686e21857f01650e8. 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/USAJN0502804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7ff818a0e88acdd49f61950192f298d7ddd702d138cea7f358b631d8fbfa91. 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/USAJN0502805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514ededf5db02c0de8b5b770a1b39c08f071d8530a96dfa6d5b8f3d963ca09c1. 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/USAJN0502806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cab5ee5ec11242a15805710ba132d46de20fc537ca60482cb13cc6366a0a72. 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/USAJN0502807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53497b14856b8639bb8035a110d307ee56e7468065ac334ac1da1cd27a297fe. 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/DED629880703.
Spiritoso (with Radio Symphonieorchester Wien)
The Thread That Keeps Us (Deluxe Edition)
The Black Light (20th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a5aa6a6335fe3664fe42a1c519867c2b3792ff520dc8396cbed812e8137d2d. 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/USSUB1930002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b987e14f0f327ade4219184e1c3cee90a8295f47af23e0c884330290be32da2. 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/USSUB1930003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ce631726f67dc641efd1f03a2bac97b1e0364190fa06ebd8ca834a028917ba. 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/USSUB1930005.
Black Heart (Live at China Theatre Stockholm, 25.04.2003)
Alone Again Or (Live at China Theatre Stockholm, 25.04.2003)
Feast of Wire (20th Anniversary Deluxe Edition)
Feast of Wire (20th Anniversary Remastered Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bcca14a48638d1dacf04aaf0be0fd5a18880d11d5fefd458b4ed55a4424d07. 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/FR99S0500018.