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 0x6a010c628a499c2dd1e641a264554304d0a6e1e1537a767334baad9535292b8d. 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/2022caf8-f188-4dd8-938c-f8251c0ce9c8.json and https://artists.proofprofile.net/proofs/artist/2022caf8-f188-4dd8-938c-f8251c0ce9c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Best of The Band of the Scots Guards
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 0xf8be9148d3707635ee73951783075f1a44459d39508a5c6cf11822df6ba58d3b. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/SEWDL0641310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac11780d218b9bc883420cc64ca5a19834c5414ca2542796ad240d74c220c1a. 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/SEWDL0641314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cf7feef597b185b8f3923d49f74d474e14ccce236c6b52ed290b182ea7d0b9. 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/SEWDL9571015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef46392d6f750a2384a99d181c93d43975b5942818c30485156be2ab9cea51a2. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/SEWDL9571031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeabf058c419f54085bd0335f8e0616a287432b78496b09537a5d92cab1c9dc0. 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/SEWDL9571029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd94e65146ddba843c1a05f93b4c5292483d93f690a06f5c4383d9b159a24a15. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9571013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c04d28f4f94f92dbac6bba39eaa8390b47dd2f9554c359d86499397ee909ae. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/SEWDL0641316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739da485a59541520670a5415ec53fee94401e9013bfdc723c878ebf2a89e8cf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEWDL0641301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb257cc6f89fc83af3d9778d63285bca14329d2a88033441b44783db5ac0693. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UKU6H1941959.
The Complete Scottish Bagpipe Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6029d5c2dfc67d8d5382771276e2c7be938410a69d3520dd06fc65095f0c47. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/SEWDL9571003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2bd144bbf2d3d51404821bc392b618ebf2d7643bf68037df641b6f0c06b502. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/SEWDL9571009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd94e65146ddba843c1a05f93b4c5292483d93f690a06f5c4383d9b159a24a15. 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/SEWDL9571013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeabf058c419f54085bd0335f8e0616a287432b78496b09537a5d92cab1c9dc0. 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/SEWDL9571029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3040c4d6ca7f41ccdc4a04ab55f997b58e13c51d88537d7e2d18394c53b14eea. 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/SEWDL9571027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a697aa9b8bf46b8853bf2459a6474c6b630241f1abf49abef764aaec9bcd9aa. 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/SEWDL9571011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3133e0f736b4923eb5fb5b024f4ae324c581d15c8a7ca7535a790598ecee2038. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/SEWDL9571019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e56fe54686ba1f3a857d14ffa1533fb5ccf26ff304fac809942be542932fbfe. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/SEWDL9571021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57b20ab5f4d6c1ea693bc61ee948e98cf996b8b2adf8a36522936ccf9169440. 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/SEWDL9571033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb5fb3ba1fadada864876943ec7986b0df702c98bc023c8304a247b69f84a84. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/SEWDL9571035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cf7feef597b185b8f3923d49f74d474e14ccce236c6b52ed290b182ea7d0b9. 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/SEWDL9571015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70589f51ad4bdf35d48ea88c59133fb0c591b718fcdf71e6671b8ad683a19a3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SEWDL9571017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e2e57699c5b87fc23fa92f1bd0a1a409d5de161096c1ebda66bc79b25f733c. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/SEWDL9571023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43c1ab81aa1e63c330a77aee1c8cbd1f6128fd87f05acf19c866b0569d4900f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/SEWDL9571025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef46392d6f750a2384a99d181c93d43975b5942818c30485156be2ab9cea51a2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/SEWDL9571031.