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 0xd838937edde20d7dcde11cdad2854be3c90b6c2606fe2c0a444e7d813be29cda. 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/ccd73a99-478a-4913-ae06-37fa23af5240.json and https://artists.proofprofile.net/proofs/artist/ccd73a99-478a-4913-ae06-37fa23af5240.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 0xcc6dab415de573fdff7d07a41f2acb29143ad866bef00d3a98d8746c5aa88fd3. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T20:45:59Z), 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/USC4R2340260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8669be54e026821ebfc0a07a6eb97f6622f341d58d3f99f077322d329d09e6b. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USC4R2340261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c19c3f69ea843ef7841e2245e5fb37cceb0b1c7d72b74c9f06e71de203fe44. 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/USC4R2340263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a896c503f0975cbe78d49483ac71153cdfb7be1852aadc87e0a908e3a11695. 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/USC4R2340265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a270e0a5a03fef645e120acaa282f11d063a81ff9b85b3ce840906565b172d1. 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/USC4R2340268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264ff3afeb99e7702f01bd232f39c1cbfdcb8451165b4846971e4101e311d35a. 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/USC4R2340270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfed2e1ea7b863054abb49708116509c47b53a4eff6d38eda542acf1f5cbe7e. 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/USC4R2340275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd9a5e835d847ac8f84344a212ad213f807b556cbba91dfb2567d537fdf91c2. 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/USC4R2340276.
First Date (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281568958fb39959313d72dfcabd29f42a95f238579d63091ae786819771050b. 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/US6W61390001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed05af831ccfb08f742b08252b01d937d050f7a89e57cc92e88392dc17d84ae. 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/US6W61390002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a9fe091ed46e72c925aa2c11e60791b1904b5a52a8eca8e07f7feb7bc1ebdd. 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/US6W61390003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7c00d8dc685ec9d1c0e65bd3c91019cc67a4eb5ae6e3e30c08c954dbc09544. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US6W61390004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87327bab9c9053486e2a6f45a0e08b2450312abe26fba21374c9ab4acac362d. 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/US6W61390005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc543243dbc417c172269b21881b835609f58f76edf144c24d0399d2200692e41. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US6W61390006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06582cc65eea27d17b122db5b41cfb0e3683144a08779e3cee4324dd1b49d99f. 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/US6W61390007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2567fcff00ec4add9aa05cfbb34fb243c97c73d9b8312d74b5cb49946b77a2ed. 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/US6W61390009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284c4a4844f4352abb4131081289153c235c084327bac1e66ed6fb765931f98e. 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/US6W61390010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cf7a2e0b261418ff862fd12d81c3cae06081ba96431c1c31e15365f9abd84a. 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/US6W61390011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f464b110901558b84eaba038b5107ac5057d26ffccc302a4ee1c7d512b586f. 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/US6W61390012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b9bd224a676ddd46ee753d76cec9cc8263ab448bce48456f5e4af4e803201f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US6W61390013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25eefbea686c955e14ead5d91aaf462ea882f6d24502611b5388c9427d1c1ad3. 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/US6W61390014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b98478e8e097292561b8459d8d5eb4616764c8c532e1fcd9ae64095d3a2f38d. 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/US6W61390015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94fb9da443a92aa3c8934d3e64cacb16a313e59fe8b8634835cf47677152db5. 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/US6W61390016.
Secondhand Lions: A New Musical Adventure (World Premiere Recording)
I Think I Kinda, You Know - Instrumental
High School Musical: The Musical: The Series (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb54d910be2bdd936d9d3ec627a1f4da41ab3282f4354aea11356bf4c0690f2. 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/USWD11995202.