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 0x256f103c4112db885f93e71321e3ec81bea0d2c7fff41308814cf2b783fc1ad6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99d704f1-4031-4f0e-9545-4f515abe5094.json and https://artists.proofprofile.net/proofs/artist/99d704f1-4031-4f0e-9545-4f515abe5094.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 0xa7dceede2e5ddd21f9986535e35bb0e3076d7bfcd85ca6a8893fdc956db0691f. 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/GBKQU2446727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b72a7d1bee8901d49062bbfe99a161cd1c042072c3244760a604ce5ef70661. 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/GBKQU2446731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ff17444ec79ac09327e40963c9bb17ecf585ee523c292e9279b9492632c8c0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBKQU2422705.
Falling Free - Jordin Post Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51133f4cbf53dd9f4e3083f484af308f97460ccf72ebc113c6665d95dff78631. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBKQU2446728.
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 0x147f9e29f37d5448616c87d52906a68f78033ea54811588518a657ded458acb5. 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/GBLV62320223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fdf4bf627bca44626b0f787798b9e79ad6f060f8d233b2db558abaaeb1d066. 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/GBEWA2206490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0605765a997e3923857300d75772a8a44700dfb9f588619ce46829512a0973f3. 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/GBEWA2105480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e805a4be53461e1d0496689ad637c3b74da20a330edf2055062cee3be3ad46d. 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/GBEWA2305651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fee82f27186a07a550bb794f5f982ab43a161eaa9c98da3c1ef01fb5699af0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBEWA2307178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeba1e775a0e77fa59a6e125013d322bfe3bd1a7448f6f16e0a43401f4c953dc. 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/GBEWA2306041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb024f24a84369b402663d3663fde75886db02c3b5b88e79f7a3a54cf04b00ce9. 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/GBLV62302173.
Colorscapes Volume Five - Mixed by PRAANA, Estiva & Klur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5f8ed49891a756a7d2b2bd2d2abf439e582689f7dc8474e73a66b1985a6b9e. 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/GBKQU2374540.
Your Intent - Live from The Poetry Club, Glasgow
Anjunabeats Worldwide 11 (Live from The Poetry Club, Glasgow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe686f71cd44032aabab7218cfb59d8c59c070004c9fa361b4b65f801ae4f1d73. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/GBEWA2306171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c406e78d80e49d6c5a6039bf3c6420cc94a9560c46292ee3840fa1f8f8002f. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBEWA2206491.
Falling Free (Tritonia 477) - Jordin Post Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7e5af7dfcdc5ad7f046cdc84e2ffbce0e7262fb23830b94596794ed0463bc6. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/GBKQU2453205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39f9f02f6193143cc4b8b22b3f81c8fb8c6ce51ca42c003a5af5703bc5bdec3. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBEWA2205670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8774cf2b22d88b0dac47a126f61124d6aa5d4690dea5b251a848011c1ef854. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBEWA2205671.