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 0x17043cc156d27f99fb72b1ce58cdd7d6ae46b7626a807f4e22586a0233674099. 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/03f2e63d-bebc-4ab3-92fd-5d37068385e1.json and https://artists.proofprofile.net/proofs/artist/03f2e63d-bebc-4ab3-92fd-5d37068385e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Worlds Collide (Remixes) [feat. Dustin Allen]
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 0x6a46953ae1d60df9a79d9460be0cdb8b9285e17cde3654930609b4464b2b8867. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CYA111500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe242ee94777434c6694015c9cf9a6a9d8329287235d80fff0739fc56c9f8c284. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/NLF711505708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6570d087c80f33ec299181447fc7b4f47f74454c390c134f94f00aedc7ea4508. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/CYA111600126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f54f1ff403738848771853c7d0afea63fadd8fbd9d58147ec84f147ffdba35. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USA2P1839833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c3033de4aa8c3e8695d66d0cdf79b70fab9d5bdbd0a26862d5f1ec461a9378. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USA2P1919493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09df7b6789f597c3ca397c31dfc14dcd18e48bcb048ce4128e9ea41b41b129ba. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CYA112000450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfb9f1e1af138933bb37141bf358086f46e082d0ec2b1de7492b2d6c3bf9d95. 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/CYA112000854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c631270344d65108183eb96880e95d04878b74542b2c99a5212613e98d9746b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/NL4VT2100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0164a77294e04b2ce928b4d24c5b8e8fb62c2ddc68061f2a94c8863e3e5a7368. 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/NLZ542200456.
Skin Connection (feat. Olivera) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3e846cf3ed924bcfec5b5c7e00f4be1633ab55a9e3e0cc62228d758c86dfbd. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/GBKQU2409271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c9228fc4acd491327089d672d2266a382f14c38384ccac2da940ae2ffbb784. 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/USQX91800327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9c321b47a7cf36d011e6fd425e23058206aa9ad3934a58530b6b86e8c3a4b8. 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/QM24S2203431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7393d0f7c57346d4c4a995cebbb02d7d3de1bf50ee73b30ab1c9dc29c37695. 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/USAT21801335.
Hardwell On Air - Best Of September 2015
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7d18dda8e750b4322443111fe1bbecfdec51123f59ecafbe045da3a2f799ec. 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/NLS241502314.
XOXO (Music from the Netflix Original Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28873d26875731b096b7a13ce868254649a818b0af7f76ad8758058285ecef99. 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/USAT21602321.