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 0xfd1449f296e069d6e8b838f4af5eab79b6f1990554e983015cbd258753cce77d. 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/c6508693-7530-48b3-8310-4050f72eaecf.json and https://artists.proofprofile.net/proofs/artist/c6508693-7530-48b3-8310-4050f72eaecf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Juggernaut (Pandora and Ken Plus Ichiro Remix Ringtone Instrumental)
Juggernaut (Craft Integrated Remix Ringtone Instrumental)
Pop EDM, Vol. 2 (Electronica Dance Kids)
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 0x00b389df5a2aa22935db28d3ce73edfd5e7a8582e5cb9f0c092584f270cd5d68. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMGXA1690543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e11c4ab99490e6bd555f14c3814c530eb6ab54408ae655a55e760398fd8a7c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMGXA1690546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad01692bcd5956d2b268fc68de8cb5da2b615f88004e4bb875b0b11bcc2d2bb9. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMGXA1690562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545d3a0f6728663f4bbe793dc327db5fece23e6a7c35847cd035471b5a4e104c. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMGXA1690565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a7664b2737a167367983cd87a324fa3041e23bd4392fdcc43f16e2a7bab104. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/US83Z2511407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393b629ef48ed01f217fbf400dd2cd903e858591f692d0d2517a4d65a65dad71. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/NLD682500667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32afb308b5f1136a290097336b927e15e722da769835b1218f034ec7ef5c84a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DENP32500203.
In Search of Sunrise 19 (mixed by Markus Schulz, Ilan Bluestone & Daniel Wanrooy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3c69b2a7a8abe3710bae31d10198544f5dce9fa73d8a96b6a5940f79eaf602. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/NLD682303519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca0016a0e683a77fc6b549f1ced6c4f545c055cf5b464c7270685a3845308a1. 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/NLD682303553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791de51bb138367f0dd4c1c7e0144c99d39012c4da573f5f4bad7be1048cfe43. 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/NLD682401984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ac7d12338a5aeae788f91f8d2c676fb3c9576eb72a0e469250ae992d744014. 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/NLD682400981.
Neptunia (Year in Review 2023) - Club Mix
Markus Schulz presents Year in Review 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca2286cb6fe8fff36721137e7ede0912f12752f3cf1bd9eda1f49f0504d0839. 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/NLD682304275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14159e79ae0c259abcf63cac25a3e4cfab1f430485bf9b6fc6a58775b1933cec. 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/NLD682303391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3f55d6732bc1613ec76897b600ce79c7bc8c8051ba219b1e8937f8e98824b0. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/NLD682402275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36bc9a6b64325ba9780d92a2fd9ae2237f1ddfaf22278280e14516d64c56b64. 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/NLD682402307.