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 0x16361c6b18de0ce74f220c0260f4a21a71096dd050efc095d415ecdb98caa26b. 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/33db7c76-26a5-4925-825e-dc3e373c633e.json and https://artists.proofprofile.net/proofs/artist/33db7c76-26a5-4925-825e-dc3e373c633e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
The World of Hans Zimmer - A Symphonic Celebration (Live)
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 0x692d64cba7519426321757a3b4e79820d20af2d090c6ca221fa15bbeda48a964. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861805995 — a six-check JSON result.
Madagascar: Best Friends - Orchestra Version - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1edc71ad15bbae52ac4b5cff5e8fc4a376cd5ed0817b1278e9c4195bd1b3cd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c8e7788c858e90841eda5905e86afaeb6565afd88aaab064f58d61801a2db4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861805996 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765bbd60bd5bb11d06fab9e3ec2123e7f18663243974cce90e310040ed9d1f19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806005 — a six-check JSON result.
Mission Impossible 2 Orchestra Suite: Part 1 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ebd474857db0a9dbed11833d84bc72f3d3ee42c7e8d47e8702d29382d93a34. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861805997 — a six-check JSON result.
Kung Fu Panda: Oogway Ascends - Orchestra Version - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f5961559d15ec49bab7628d973b5da9181dd8cd66a7df0fa27ecedd425cb19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806006 — a six-check JSON result.
Mission Impossible 2 Orchestra Suite: Part 2 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc90659c1c841f8a4fdcd1ea76add5054d35a0bd81d54f6ad77870f27682f97. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861900371 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52914a01619749f76c38f8b734721a856cd63b140a73c422909090161830140b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4675dbbfb73cab3c2c497c0c9453eed12ab4db49ede4bec419db1946f2691419. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861805998 — a six-check JSON result.
Hannibal: To Every Captive Soul - Orchestra Version - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c988a8c90b341002905f2246644c80217aaef83b512a1adb05894f414fcc2a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaeee061119b0b8c0d02ee2ca9b143381005bbc56163ebffad464e6fbe988915. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861805999 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd62ace9722ebd09db8ab5761b3401f241aa45e1deb9895b67373bf77ad58dbc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806012 — a six-check JSON result.
The Da Vinci Code Orchestra Suite: Part 1 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4dd84e24713badda6fde1b8ed16d7685ca5c76bde81e1a9f8ccd281183c774f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806001 — a six-check JSON result.
Gladiator Orchestra Suite: Part 1, The Wheat / The Battle - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f49d08ecc69aa1402910d73b6bacbeb5cd598bc9b82aef4d5801c992258a92. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806013 — a six-check JSON result.
The Da Vinci Code Orchestra Suite: Part 2 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bef08a44bf6cf1adb58ff14430ff135e8b9fbdbec84fcb3340bd4d5609de324. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806002 — a six-check JSON result.
Gladiator Orchestra Suite: Part 2, Elysium - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1403ac8c0eecdd29508ce09d467f719167b8ba98ef9509004f2ddb6a0be241b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806014 — a six-check JSON result.
The Da Vinci Code Orchestra Suite: Part 3 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942316f7f8cb4b450970c9299161e8eada61b637b628873dcdd21cca6e1d0d35. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806003 — a six-check JSON result.
Gladiator Orchestra Suite: Part 3, Now We Are Free - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44a0d184fef02240df127a3b13278a3a8b04989ee3c63d24765dae1864b0e45. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806015 — a six-check JSON result.
The Da Vinci Code Orchestra Suite: Part 4 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f8bd6712845d1c8f76954d1996be815ebfb783cabe8b1053383006a8c79c55. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861900391 — a six-check JSON result.
Inception: Time - Orchestra Version - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03371c8b32e37984aa3905d35a79616481783e2b24a7f6a9d13dbb31e7dfae0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806016 — a six-check JSON result.
Pirates of The Caribbean Orchestra Suite: Part 1, I Don't Think Now Is The Best Time / At Wit's End - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba2f67d217216fd0f18bec4d5379ef7f3b045d1dbd3646da7a0cddedc4027f3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806018 — a six-check JSON result.
Pirates of The Caribbean Orchestra Suite: Part 2, Drink Up Me Hearties Yo Ho - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ee9d26c6b1506a13b1535713476581bdbf69d46561cd287082375232b2d4d4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806019 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c8e7788c858e90841eda5905e86afaeb6565afd88aaab064f58d61801a2db4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861805996 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03371c8b32e37984aa3905d35a79616481783e2b24a7f6a9d13dbb31e7dfae0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806016 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f8bd6712845d1c8f76954d1996be815ebfb783cabe8b1053383006a8c79c55. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861900391 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f5961559d15ec49bab7628d973b5da9181dd8cd66a7df0fa27ecedd425cb19. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806006 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44a0d184fef02240df127a3b13278a3a8b04989ee3c63d24765dae1864b0e45. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806015 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f5961559d15ec49bab7628d973b5da9181dd8cd66a7df0fa27ecedd425cb19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806006 — a six-check JSON result.
Peaceful Classics - Relaxing Classical Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f5961559d15ec49bab7628d973b5da9181dd8cd66a7df0fa27ecedd425cb19. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806006 — a six-check JSON result.
Reading Soundtrack - Relaxing Classical Music to Read
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f5961559d15ec49bab7628d973b5da9181dd8cd66a7df0fa27ecedd425cb19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861806006 — a six-check JSON result.