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 0xbc2615c0071c9567c5a82c3e93ebaab6269d800edff16ec5412677e0a4ce4be3. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce140eac-fb5a-4d80-a15c-35de05aecce9.json and https://artists.proofprofile.net/proofs/artist/ce140eac-fb5a-4d80-a15c-35de05aecce9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Neujahrskonzert 2023 / New Year's Concert 2023 / Concert du Nouvel An 2023
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 0xcdb65b328997812537b93018a6bb0d9c560bdadbc9fdc353f1f05f2d6d002700. 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/USQX92206247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcdcd407b24102a96056f34f809b43ec40123a7765570203dff40d1ed0b4beb. 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/USQX92206248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81225564c246f709b9ccfb2bd5d2cdb11e875e72885dc3fa6cf0728e9145416. 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/USQX92206249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5c4d69344d48a7b7906dcf16c478793d1d72e2c9f2a13241cc78abda907c6a. 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/USQX92206250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54c1ff475a35b07fbeb38701544d15129bc3ccd577e62f960c78465d14e49cd. 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/USQX92206251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9350c3084fb8ce312ff049eff668c901fcf2e73a4687ea151125b374c68a90a7. 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/USQX92206252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56cd8d730ce619085d33c09f5b4db44058c9bc062235b2b8401412b00ee69b8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USQX92206253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d6d03b4b7b2206dbac916e3f3b3fad5029d52e81e641f4badfb5a2ae608400. 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/USQX92206254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c53e6770699ef8a6696163d7d0d788e06fe237b3e36496f97d13bb3db6ab24. 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/USQX92206255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927189151d127f1ed6f464cb687579031aab910360c9f6a8d911eff0bb75ff49. 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/USQX92206256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e829b2ca02e4afed7b8631d32285bc760252669e1c46d6ff2a0f826227e667. 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/USQX92206257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fc125bea8a29d1ecbd6baf10798dc7612cc66e83b19b7a999d0424fd531c70. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USQX92206258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308eda732dc139ff2dc063713ff03d88d2e89fab61d1d7149498a400628e67be. 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/USQX92206259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3db915469cb4d673a5f5bc93a5b8814fb54fa91a13a3a8cb451370bbd879f62. 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/USQX92206260.
An der schönen blauen Donau, Walzer, Op. 314
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5f66cbf6be7b9a9a86c4cae527720926c97adc203ffa123b73aaa3adbd7881. 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/USQX92206264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e79a61cefb375cb216cf01820ac4141d5b62cc7ac9d5534a95d953e67f14ee. 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/USQX92206265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c27c21f56bcb175037568a563139127e3002f8de6011b7bd7d9867be83a3558. 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/ATUM72300446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d13f32bd22464e5e7d6e244058206fb2a118bf04e8dc48160acaff7b301c334. 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/ATUM72300507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e231bc88d8a80ec309c3d010fdc80a0248344727c9b1bbc85a13d312fbbafa. 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/ATUM72300449.
Selva morale e spirituale: Magnificat I, SV 281 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35c3b914624152b2a0b36d99491ad9a6322cfdf37c6fc29a8c5c91a8111e5e6. 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/ATUM72300454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bddc99d3297beb4aa09fe3b2f96db6e1e4e1a4882445e5580b2126c5377a43. 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/ATUM72300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6cc992a66216a68b61694d225d7d95b97f3d3db1a227c24b41277b219be33b. 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/ATUM72300445.
Kaiserwalzer, Op. 437 (Arr. Wirth) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e8a3f0ef4ffbdb4d6039b827b429fcee3d02910cc50d5378b35a463c45830b. 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/ATUM72300453.
J. Strauss II: Kaiserwalzer, Op. 437 (Arr. Wirth) [Live]
Josef Strauss: Matrosen-Polka, Op. 52 (Arr. Wirth) [Live]