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 0xf169cd01865405ca1d89191aee29182cbb5f9ecf7e941512ddac7b395c6bdb8b. 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/cb45587c-b5b3-4147-8275-fcb178080733.json and https://artists.proofprofile.net/proofs/artist/cb45587c-b5b3-4147-8275-fcb178080733.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 0xd20cb310f5d242ce94586402d68ddc5e9efab56201d62ee29f53f647dc319c6f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/NLE800700125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87f64426f504b1a6324775a002e5f857003f9bfeb85425e9756b5b4eede84e1. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:29:02Z), 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/NLE800900110.
Tiger - Roland M. Dill "Got Him by the Tail" Rmx
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63afd27fffc355d8eaf9d0f5a7a6ccca94e9bbfc0b79eec9f5b1427df981f029. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEBW21000034.
Mi Pieza Esta Llena De Cosas - Max Cooper Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd1c6f854a387b553ac4f86a745d07e288b170606934bb73af27733589c9985. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:57:43Z), 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/DEBW21000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eea0a1a299cd0b79fb87ff2bc6cca513dac9d93b0d51d694ecc0cdd62a57664. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLE711030901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770a822d70699820c0152911c6c9b8abf7676f7c0e8d0c3b3f7f237c9643e607. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLE711006501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f657c15098b431fb67ff7df08dd3fd31155f6e7ed28ffab045a77589ab919f. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:40:47Z), 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/NLE711006510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe013b4e4e5a0031bef72d6635e990f55b94b333e28ceef7756092debefa2bd2f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GBKQU1151937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6351c88d5a0f7fffa82cf03e6dc639d472dd3319cc074726025d24613477bd. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLD681200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c69f2c675278171c450601ac2c6b266acb9ece566adf686f71e0b4ca3c6753. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/GBKQU1151941.
Hero Of Hope (feat. Aelyn) [The Remixes]
Twilight is Coming (Grube & Hovsepian Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663ca2b034b5ca9c1ee191d4f9628529ce262a20097688c176b06705eedfd910. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLE711500230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfc99e157501c2c416a1a484066984a87076b7b2d9318272444bb58086b4df3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NLE711500231.
III (Original Motion Picture Soundtrack)
Bring Me the Night - Anton Ishutin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7272371cd9e99399c10a2bc9819cebf36b713667ed133be102530063debe69f5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLD681601237.
Somethin' 'Bout You (Indifferent Guy Remix)
Somethin' 'Bout You - Indifferent Guy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749294521ecf47a5eb1081da09eee39c7227687c7ace92e542b5b1f186b588b6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBKQU2186394.
Rafael (It’s Time To Be Free) (Indifferent Guy Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57199b0d70b3467e0587e361feee3cd178cb5ff56cb7fd99f353602809dfb340. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/GBLV62402849.
In Search of Sunrise 6 Mixed by Tiësto (Ibiza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9723b1cff2ff9e5af21839b283ea23644105f266a6f911621251e0d3b8385127. 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/NLD681802989.
In Search of Sunrise 7 Mixed by Tiësto (Asia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c71554b3ac4930291b87e7969a042282d6e6eac66b9bdff725b3592c599c33c. 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/NLD681803056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d8cac47202d38e28b1a54c1d798f67aadb3f78e599dce6129ec0b42fd40e6c. 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/NLE710721010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce73fa746f05d7f496c5b33d73a84bc38462747e8495e6820bfe0b9bb6b32301. 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/NLD681400538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e31c99db6d4640a38965d79be65c67f1e696ef7d21a24ad5a920aca1dfa9810. 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/NLE711390123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26f89134d5c300ba0b17d7dcd70b1277b0652d599570cf2f05c89dfe265b620. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/NLF711601447.
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