The Royal Wind Music is a Dutch recorder consort. Founded by Paul Leenhouts in 1997, The Royal Wind Music is a consort of thirteen former students of the Amsterdam Conservatoire. They use a large ran
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 0xae8ce8f2474832af612ff8f7ace4acb7da45e601ad096a585c1441dfb63ed6ed. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94a12663-bf3a-40b1-bbb5-20bd78d57b32.json and https://artists.proofprofile.net/proofs/artist/94a12663-bf3a-40b1-bbb5-20bd78d57b32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x073ba3e4a0a91d346f7f30293b74cdb5dc8b8377899fd126140a88cd66e1089a. 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/ES29G1402302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7497af1bf6054e158e2429094c1b33260bf5923bb71012f737f0c2e0d14d3f24. 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/ES29G1402303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe69588d740ad93c02477b48619d4da20203ceef993899926656dea45a7114a. 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/ES29G1402304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc1557c480f8252ddcd573cccee07dd09d0567ae1586b3e83af0fdc5cb74250. 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/ES29G1402305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2e525fe3b5817953de07cfc07a8206ef5352785e025aac564ac0505afd07f6. 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/ES29G1402306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a657354ff4819cdb395eb41d865e426053340158392f58375af2a0bfdff245. 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/ES29G1402307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4c113a8f0ba85a2f6e69581ad57daa6e5ac1ed0868eb7f1f12aaacb1d0279b. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ES29G1402310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1361082292c050f1d29d2d6df9ccd97691df4e52f8c22e01b3810d1428ffd652. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES29G1402311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02167e01383700a71c623879aa6400360c8ed95b0c181347bef267f758d26792. 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/ES29G1402315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39323d9b3a24fd5d66e7ab3c91d2070ae787adf782d08443d7632eb77b59a028. 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/ES29G1402321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e57f1a2e3d1b76a8a0f8c016d707f7977d8e649f697daf35185338309bdceea. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ES29G1402301.
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 0xecaebc3000808df100b82c5ab91ecf9e0032301a698da671b7f06ce64418f7ed. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES29G1402317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36b8f31afca246d51789b474d6fe2e2a9ab09a6766603fdab52d31154374a67. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/ES29G1402308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa657413202f0e55818ba4c39c4e77617b9887abe6efe26d2fca2ab592af750. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES29G1402309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca3fec021b7f616f429827eb0b2d35f62d2620353c6deaebc0825fc169cafd3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ES29G1402314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190a4d5fa4d442856d45f39b0306fcfba7fb7a79a5f7b5efa0d0ab41ece97500. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/ES29G1402318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314c7fff9595e19d8f519ce962507ad56884289841147460c707a84dc329e073. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ES29G1402319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318441edde9d987280117d055a2409a07c3d95a7f5a4717ce6c2aa8ca9e9a386. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/ES29G1402320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8957c88090cebbafded6e9ffbb4e07541ca6e548ef55077a2697c854cd10c3. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/ES29G1402322.