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 0x93b24dbaa6e2387e1788c555b2c13c68c9d5512e545ec3968d02e2ea8d430fa8. 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/e6fae9e3-df9c-4ffa-802d-a1ee0dbfdee4.json and https://artists.proofprofile.net/proofs/artist/e6fae9e3-df9c-4ffa-802d-a1ee0dbfdee4.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 0xed1bc6b795b0ce094ad795766224a0ad5ffeb9c07c159b32b7a5814cfbe46d95. 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/ARF411200000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b02d80161f6f705949820a6bbd0cab1533ce549fa5795749b947b867d17796. 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/ARF411001039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2263729d2cfbe820e7e55049a2bb748e7b8be3e11d25dd62fb2fe93b704fec76. 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/ARF411300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad095fef97b18d3e84124bdcedb8eb70c3c22ba030f069712b50cde533ee4663. 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/ARF410500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49adbaf1e817c8457c580114eb43229033dbc7717fda84fd740b6192e7a3ced5. 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/ARF410700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee8ea5f8b66a61fc6fac6be225b0cac3b5e2914908ac392893b62a19f1f8105. 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/ARF411300288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb784c96748cec567116ab3f958441e091ccc7bcefd31e78fb1a4ca3f4d3e2c09. 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/ARF411800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc48dc873e2bbbdb2f6df1d85afa5be588bf9a944e4730a3d9017177d075eb41. 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/ARF411701838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90580cef22f0ce25455189cf13be27c12836934023bb24da4ca0451a3af05c05. 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/ARF411500977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5d5416c2038edaccb6fef41b9df3f109fc4b6ac27cd5fb097cb081c3ef09ef. 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/ARF411401220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0c132daceab04a167c2810414db9a34b6fa42b9525e11d64cafd7f84002076. 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/ARF411601088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfb268f400d1647db44f4a3311d403b16a138952af6eaa11e1fffcfe6ed6656. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARF411600155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89d080878bfca323fc48c196d97856d849f293ba6a7cd25ac38f5de7341df9a. 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/ARF412000174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c5d8640fe8bcd6a610c0495b5da50d2bcdbeb8a6b4472d55e51bfb10e22faf. 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/ARF412000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9098b8eca6ed298b16237bd0a96b14b9ecf86ad3f6a3a88aeea50e4da4d31587. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF412100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170e10c7b0c9ef93f128f34f992255735808d3eb70397e67bbf310ac9ba68770. 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/ARF412200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71f513286cfa7ade4737c7d4ae830ffc395c91f609ad6b9e516c9e52192b133. 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/ARF412100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9fd9f4fcf574a8c9fd805b41d56fc233af952639b9b960944888c7d8cebc29. 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/ARF412100195.
Hold on, We're Going Home - Urban Love Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6a41644d49d52b0986648dc778f1d1a4b9709009ebf1e0f23e1b36b9ce94d2. 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/ARF412100295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bab2e28a8914c0cf6e1fb39f3c38df64d1ddb917eb72047a58f4d691af024a. 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/ARF412200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d357e5b6531f35b8f7dac22535c403623ab6d15033a0f15cc71619055f9a54. 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/ARF412100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2482ad8c9eadf4d47398ddd4f12fb5c10e2f244656e40c8bd8402cbcae552ad7. 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/ARF412100360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c5d8640fe8bcd6a610c0495b5da50d2bcdbeb8a6b4472d55e51bfb10e22faf. 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/ARF412000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a552a525837a537d79cebe9b1cb21bfe763e9163d445002034050aa6bc18d6. 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/ARF412400189.
Vintage Café: Lounge & Jazz Blends (Special Selection), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1bc6b795b0ce094ad795766224a0ad5ffeb9c07c159b32b7a5814cfbe46d95. 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/ARF411200000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5d5416c2038edaccb6fef41b9df3f109fc4b6ac27cd5fb097cb081c3ef09ef. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF411401220.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0c132daceab04a167c2810414db9a34b6fa42b9525e11d64cafd7f84002076. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF411601088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad095fef97b18d3e84124bdcedb8eb70c3c22ba030f069712b50cde533ee4663. 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/ARF410500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49adbaf1e817c8457c580114eb43229033dbc7717fda84fd740b6192e7a3ced5. 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/ARF410700022.