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 0x01b5dfd39ad842302f035a2c1a9b2fb44052848ad148393dc0315002cf652c93. 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/b9e5a494-383b-4fa7-90cf-cbd9b1beb12f.json and https://artists.proofprofile.net/proofs/artist/b9e5a494-383b-4fa7-90cf-cbd9b1beb12f.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 0x24d9bfbd3cd4ecc1de1b14c3447b461497b3afb6f306c5ed0c4164e5c8dafdc4. 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/SE5IB2123122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe05529f510b274cce795d04a11288fae868186f9cad500baca107aee6d521ad. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SE5IB2114122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10202385f5408a64cefd83c9706a6efe43ec567642a25f29a57cb33f79fba120. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/SE5IB2123104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7e22b2db3e4df73901c269b86942b8ad1d87cbb955cea9222417c34ce694d8. 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/SE5IB2123626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c91bd8f17b6ef48efc9b89673579e8c5cb69c6404524df8af7065438064e69a. 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/SE5IB2123329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3aef80347519a9496b99a01e4ad4c0249ff67bedb95b60f94914b29cae327b. 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/SE5IB2123302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ebb6c48a5302f9caa543936fa667d529c50e662e27a2a05e87cb2daf3f531f. 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/SE5IB2123554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc844441147aadf51eadc241009f67b9b69bbdb47bd2618fcb7a88cea8902c39. 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/SE5IB2119576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19322d0fcc9d10f1d6a3ebc0e6252bea6da903022cda587b4180e04f372b638c. 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/SE5IB2225393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102e711ee80c6586ed63982fe10c6e7b4a1df2d1f25260cf45c5c387606c15d1. 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/SE5IB2123185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16f1159bb06b430241f063f4021b9d020e8cc402387ac5d6c4cb017c3eb3395. 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/SE5IB2123383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d32324df6cbe0e884e9afdea661e21d3daaddf02d037695b9ae11ebd03ba818. 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/SE5IB2208881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c512b893337c5b0abc1348806befce9ff6d8fe296a0e79daed8e64716dae416. 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/SE5IB2100503.
Rainfall Reverberations: Melodic Rain Sounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603457d619b048774bb90a9b9e35c868094b4a679261b34adb94628505404d0c. 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/SE5IB2323627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0821d0119386ccfdfe7c380557c87ce28230628f24076f06721517be9d37031b. 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/SE5IB2120296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869f3401c3998a39140036d551735dee4d883553ab88852ce6747ba4be37e71f. 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/SE5IB2119621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8140fa53a2fcbdef0a6cebac4688ac4a95fb30ee4e21a2b75ab92d6516dcc022. 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/SE5IB1701022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab038037cd8edf5aadb36af0bbb10990a2900ac0f30c4ad1173a601fac64a34. 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/SE5IB2119549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1a38757543233b63dee663fcf8e1104316ecb40c56171201d00d1b000be08a. 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/SE5IB2101208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f320f7706f33250b1fb726bebdaab311df79bc22fe4b89cef1b6d3304b6c879. 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/SE5IB2114491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648fee1bb98e885b9069fc7b36d197cd0d8974ef9116bab2e5596c6387dc8830. 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/SE5IB2100897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e31e04b2c609a1e0c0ab6b1f18052ec0de425fc9915c9965a4d03cff33aa36. 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/SE5IB1701006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec35a839b5ae3dc5b4d10bff65f6a15e2cb4ccde55baf02a45f51f168ed2ae00. 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/SE5IB2114428.
Gentle Drizzle Symphony: Relaxation in Rain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5360544c952768c83c35eb5603336042cfd777b064b416e859a4637a3ebfc648. 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/SE5IB2323603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7c2d765ddd2ebcb19fb7249b6067dff08212043e3868cacbe8d5e34e02680e. 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/SE5IB2114401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b3efc05aa8469956ec26fc2b0dff131ca25c9cc614422e68174e83a768d862. 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/SE5IB2114392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87eda2fabd18a0d7b422521b1e04281fd8e1e40cbbc95ae9290d15205d8503ba. 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/SE5IB2101148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13576ff5948157bd4760ecc124bfe3276fa7e71547977357c6d5a42029b6f46e. 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/SE5IB2114167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e7950cc25ae5edd44778d78932d100d02761e8fb5ec00001b22adbd329886a. 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/SE5IB2225761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eefe0e837db14b8ac017c2f5268b93fc127f2406f91775e7aa7c20a184ca9e0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5IB2100898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d3765b33b4649cd9b0a9465fd368e9031e9c99f28792f116debbd512a27598. 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/SE5IB2100899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d410150b449d3b7688cfa78ca0bfe085261c9ca3d88d013fe1a9aa76123d64. 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/SE5IB2100900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ef3f0e62c1ddb4821e49525eca01f90528cdd7607f176d3c1e0f38b3790fb4. 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/SE5IB2100901.