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 0xafbb033581ba103a8418f491951a14c75d4d53a708c4c7ea82159c16c8127882. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d31bc8f-c0ae-43f9-97cd-e05617fbb73c.json and https://artists.proofprofile.net/proofs/artist/8d31bc8f-c0ae-43f9-97cd-e05617fbb73c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Heart's In the Highlands : Kenneth McKellar Sings Robert Burns
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 0x01ce070d4984fff8f85924831dae705fd0de00742d12c14173c505476cf0aa60. 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/GBF075922160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3a2ec4c54982a460647dd23ff0fd035d840ac396bec460589ce7b60b07a859. 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/GBF076201690.
The Golden Age of Light Music: Continental Flavour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181bd874003b133c3a58a0d50014deac0112311e94adeb9635cd56c28b8f23b5. 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/CH6630753218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2749ff4fdb8e054cdd96ca81fa01f04d258c42613070aa34bd9e3863316cf4e6. 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/ZA42A2115085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66092e563a27370b1c5bd54edd10b7832f9ca4d9c6ad6a7deccecc6d43ef495f. 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/ZA42A2115086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56f5bad337c206167e4aba73258a4db507b54132e420bd34f6651c95af457ba. 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/GBUM70710574.
For The Love Of A Princess - From “Braveheart” Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef5b77d4ce2fce51d8a9608d5ef3e1d20fa12ecd7a1c49d302b6cd99841bcd3. 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/GBBBA9570211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc111c79f6b5aba2ff93d766b12e49579c165dca5c65a4481a80d20e4600263. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBUM70710576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3e6589f7e86bf0b1dbde78126939453f9b567ff18c78b24f054a65f97887c5. 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/DEN961202133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791adfabfc787113ecf17f34a5deaac3b513e5663e8f6970dda2d7ea13fab6d8. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBUM70815436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17c9f6f66bbcc2dd1ffd5b2e1db5a26ec39c5290632ce5e2ab1bfd85693492a. 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/GBUM70710581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fb257e86ebe08545c14274feac1e622c16272e1c2f74b1a637d6331f7776ce. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBUM70815431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fbed4847c6fccbe8c9b7bfd36a277c5e5e9bf356d762f529a89a5ba00dc50e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBUM70813570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b6b42d6aa4b8b9beb44fd152be6196d65554bd9f52409bffc548ca61b2bfab. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBUM70815425.
Dreamy Melody : A Collection of Classic Waltzes
Solo Flute and Piccolo/Solo Violin and 'Cello
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f524000ab7fe378c2dbd0514d37506b4b1e5dc99d90edd434e1af8da0eac9a5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBHS7400397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0011b0f2f8561d845609e858c1425bcae62947bc1428e54856d5f57baaee52. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBBHS7400399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1972de077b0fd0062fff64eebcc1bf0c29ab0a0d44e9edb6020182c71224e67. 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/GBBHS7400400.
Deutschland über alles - arr. Sharples: World War One Medley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce37415cd5dd84a33a9fd0f2c8c8941aaec5b2d201661defd759419d5c41413. 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/GBF076311940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf09d6d4afbf23ace996a1fb515e9a689500cbf844fe9e83b96e30c9e39de73e. 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/GBF076311950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1131b4691c70fabe8263d37f60fb9c80450332a72d5d9ca413c991ef264b5983. 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/GBBBA6372206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614543cf6e0a63ab790f3d589278dde4c47e74e21851b0f52106cf4ac8763a8b. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBBBA6372204.
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
Fanfares for Important Occasions 1-8 / Fanfares for Important Occasions 9 - 16 / Fanfares for Important Occasions 17 - 24 / Tea with the Family
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f4ef66a4c594702912bc612ef353960f04d44a05eedcb294082e2d14edb9cb. 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/GBBBA5960351.