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 0xa5e656baedb654e6ece5b5f334c825cae78cf52b2fb70ef28820e1f799fe4df9. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c88d7f2f-2678-40dc-a6ca-573176913519.json and https://artists.proofprofile.net/proofs/artist/c88d7f2f-2678-40dc-a6ca-573176913519.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Compass (Ferdinands Feld Anthem) [Radio Edit]
Compass (Ferdinands Feld Anthem) - Radio Edit
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 0xd8f1ba0f77351f8f6ba69e1e7ce4ee8fd94a44390a50af6d13cb9078caa51697. 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/QZFZ21949763.
Reach the Sky (Ferdinands Feld Anthem) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46620d37f65ebbdf2168fb2bf547a9b69eb969775a90b7f24b6f9ab429342ec9. 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/QZDA51898239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0b65bd349118d2c37fcf50512d3674b563e545721ab7dc9dd7c98528cdd6e5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLZ541701146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f33a624f7fad8e7f9ec42fcf2bd07a7dc18f95f20bc4bf11522bf0f3bc395d8. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/NLZ541700984.
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
The Bass (Ferdinands Feld Festival Anthem 2017)
The Bass (Ferdinands Feld Festival Anthem 2017) - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76c14f693c5b3acb861f21d188f71b7c27e06c3e6cdfa1514f3798d22ccb315. 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/DEPY31700647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a2a637a53fb97b1267274a00991ee587a70ef442182221449311c49f92f2db. 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/DEPY31700638.
Armada Invites Radio 264 (Incl. Kav Verhouzer Guest Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01271bfecf2a560b3610dd3f3886c91e8b434c78c59944e51219670e6775fbd. 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/NLF711906375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff32e0c919e81fa0a69a76d664436bb48febfc27016b0611bb8c301c6fbbf96. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/NLF711906376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ef98c5d45988781426e52c271b7196899754c3f213d4df6044394a44d33c04. 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/NLF711906385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b9f4a402d950a7bcd884bb1656404d6fab4b66f98b8b46103efd3033271d81. 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/NLF711906389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b0d7211eadb121bf61a65237a5abe7071b0faa86263914eaa3a46168578d0c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEW871706424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68156c3136d427bba697a0fbfcf431b30d59a485c1c0414db21027e6703c2510. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM6P41846502.
Armada Radio 277 (Incl. Fedde Le Grand Guest Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e338ca02816ad0e44b8a8a6ba0727cc795d5bf8208c98a6cc43bc3bccf8e93b. 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/GBDVG1892101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81345d844ea4d6a673f44227cc719af913e9d48e32f45439da3f74f291cb16d6. 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/GBDVG1689701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7dec2d3c615403289a979c640cad68e6aba19eb1eb90acea4807cd1655cfd0. 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/DEW871707895.
Ibiza Winter Island 2021 (The House Edition)
Fade in 2017 (New Year's Eve Club Sounds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e47bcfa629274a4a0b12336d4debdb5dcc77d5281f94cd885b53c5d0f100a7. 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/DEPY31600503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57723f312da6d343491d2adaa3dee032c3ce285be671462874db3bd0f202186b. 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/DEE861806869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1232216e6489a1773fe80111c448e64db223eef7abf13283086dd1ca5d2286. 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/DEZ451200603.
Futuresque - The Future House Collection, Vol. 5
Happy New Year 2017 (Best of House & Electro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ef3acb4074e455ed7ff018bfb277d3d173f20516a3931bc2f87084770109c5. 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/GBLV61502993.
Somebody to Love (Rework) - Guru Project Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fabc1faa2357eee8a20ed34c58d97ec252ce43e51a799f25f2086a7ad79d44. 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/DEW871708926.
Friday Night to the Club (Thanks God It's Friday), Vol. 1