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 0xd3dabe9c2d776e916cb58382c71523c72816848b29f9684fede369dc6505005a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb257d9f-8260-4624-bd46-3fc2c9567e0e.json and https://artists.proofprofile.net/proofs/artist/eb257d9f-8260-4624-bd46-3fc2c9567e0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Allegretto
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 0xf816ba2ca63d2c1defaf1a0291e4de0dcccf978afb943a1eae005a3a0a4ec7a9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:36:51Z), 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/DEB201058902.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2409bb866381fe4822d5409743d3778abda41893ef46494541f5491e1b125d. 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/DEB201058903.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Poco allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555e22030591a433bbcf82e036561ec1e68d246ec5fc02da009e8b758da70ebd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB201058906.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27118e65dec1eda7663a18c68c587eee333a3ab84df56f1d86dad51882734d2c. 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/DEB201058910.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce43fb787475c954ba1c4c606bf09c1d4b04cdba97485cf1d33b4f4703d46c06. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB201058911.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": (Andante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ef07e4e83c67faafd4f16e08efb7e4a7109b6062c8e04de6e38fc9a5110a1e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB201058918.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a3f85a1bee288a0b7490e242af3fafe81c3a545c9091b9852cec27bd4f17ab. 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/DEB201058919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae68de5a6df35ca702b7878aa18e5c00600b868ac5f70933f13e5b5e1411d4c. 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/DEB201058920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c43a74459d2ccb697864d881f29d1509264a6611dc6091233f7526d28599b52. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEB201058901.
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
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Non troppo allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff6589f12a5499d22ebdcfdc24b7720307357b6626d071a26f095d1ed035185. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEB201058904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b757e1274573b2931dbe6998fdbb550f34b34b5482ebfb6da1e4f8fa4860077. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEB201058905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c570acdaf43af295bbee90d6e6890f29743cf5901dec9476d3b69a8829ab5a. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DEB201058907.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a79a04e2cec5955671cdd628d8e6b418f4a767bf28e3550b6a28ee5eb6c1d2c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEB201058908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6640915e3ea84c304eb8fd98ed71404baba9dc6848b819e29bb4bd5d18847dfc. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEB201058909.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c066a0f66a75b6625cc2a581b8dcea311a4c5c7d898f7260bc009ae8f95a2f. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/DEB201058912.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": (Tempo di menuetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dad57fedfe33fd94bf823bf58e2f3282b79144c94cd191ebaa548100c1f42e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEB201058913.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": (Menuet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ea4a7dbc8d7cd1f4a506bf35f39790d24b96dd7f949af2c8f3ca02e63ecf66. 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/DEB201058914.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17673b8b6dd10f191f408145d128fbe8081a3caa1c710817b67033115557537. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEB201058915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a02f4c58a327de85b16832e8ee84c5e19d87bf379a7fd409f0e305c91c1b3f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEB201058916.
Bilagers musiquen (Royal wedding music), BeRI 2, "Drottningholmsmusique": (Lento)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf499f48da105fcff8a2f30574fab5306b658d4c1f2ff5c57a47141a5ac68c137. 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/DEB201058917.