The Budapest Scoring Orchestra and Choir
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 0x1e9c05f3091817e8ae1b29f43b1f0d1448513776ca2abfdb9e479f7627865c5d. 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/e2a5d659-6a72-4d78-9050-28f006b36ce9.json and https://artists.proofprofile.net/proofs/artist/e2a5d659-6a72-4d78-9050-28f006b36ce9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lords of the Fallen (Original Soundtrack)
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 0x7ceb64b6621b48d13239964070700ac3b8878854367800b94c799d48be0b435c. 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/UK9AV2301916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff49c1596b458c1c709431b4d8bb19bc362b754f6eefd012aa9647b7fc842d2. 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/UK9AV2301917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd477b6510950f8700fc65e0264052eef0323878b4df506d69c917cb3c92fe59f. 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/UK9AV2301918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a5744e5f3976250650667fd1283aee11eb5c9811cd558b5a458016944d30ca. 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/UK9AV2301919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf506e133cb69974a3c4201db6e01153261843f3a8c051cb20ac5bda85cff1fac. 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/UK9AV2301920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607341bbd83ad104c9d63dcb52f11e2a3eb3433cb8edf70fa7e766d1d3d23106. 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/UK9AV2301921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2778e674145951d6f4f947abc32f25ee6746a69728e761be315b098ea0522c. 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/UK9AV2301922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc412babfccd814a2ebe1d666b056a5569e25eabad36f358b9243a60c4c2a890. 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/UK9AV2301923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09541e3b6abcbf266fe840a525065821a662c010ca62370e2dc85ae8418997a3. 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/UK9AV2301924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ae8e357ae1ce928d67c3134464120e02c0784f9a52e6b4d9de68cd7450fc75. 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/UK9AV2301925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c41d2a3f549e2b223005a048840a128baf0b27fa1cd11f56443872897bfec90. 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/UK9AV2301927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90d20b7d35b9815c1fc40a4c9f59f9c7807c5266c813309cb834230c28ca419. 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/UK9AV2301928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa004a9ca2fa8b65ff83da226ed7dbe350e4ee2a9e7b7ba9373c80b16fcaccd. 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/UK9AV2301930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdc645aaf5df5b134e74f8dd3a084cc06a26d51856d6cb0526a15ff33ba0c54. 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/UK9AV2301931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cc3416bb16d0b901c44a70bcac8e89632a63eaa307d10e4ef6ead90e12bd81. 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/UK9AV2301932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789b2a475b429091844d065c40e12e3924832c17fc9948dafec32eb5e45adc7e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/UK9AV2301933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a77d333c0081d12867019b831d74565765aa11a29df2bbcce395ff5d7cd9917. 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/UK9AV2301936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6a5929d27d7ba1a4b207db2a392d87658eca11b768212df92cc89ecada3cf5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/UK9AV2301929.
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 0xa97845af07bebdbecb5ab224b4dffda14beb6d78c21d761b8422ca89e3fc1dfd. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:56:33Z), 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/UK9AV2301935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77db9ee0dc611ac2b483f9bbc3aebbcb608655e46344f0f5a0bd54f556985ac9. 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/UK9AV2301926.