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 0x7e683322ba8aaebc1a3105b03c1198e9389bf13c089856a2d528663f4ad31e2a. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a09330c-117b-44b9-be79-7af3b1987f32.json and https://artists.proofprofile.net/proofs/artist/2a09330c-117b-44b9-be79-7af3b1987f32.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 0xba62d2df0dd5a2cfc36a9755f7abc7131c7f9fe3df6c86577ace997a55f32286. 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/ARF052200242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdb2036bce52b89ff78eca252cce9c4fed5250cdbcd691dc92aa0a12ff12951. 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/ARF052200243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e16c4d02f139917309e2e7142421e30099a2b40baada53d473bc045e5f9e3f. 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/ARF052200245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb2d8a44a81325deb97396da8221c49b6834a3011fad276b8068451beeeabd2. 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/ARF052200247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e757b01dbf3a374bd594ca7e0877cb59fcf32923e84b4d8a200905ce0a9aac. 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/AR66E1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99173fee671c235efa43e1c7cd04f3705bc80e37ea396751a792c83e6aabec7. 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/AR66E1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81c12186a439f8200f574c27a7b378c5575a042357ab2a39bf3932bc149b566. 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/AR66E1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b21afc9e523ba26ac98361e81a8443f511674c21e8c6833f5218cd0e31fcbf. 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/AR66E1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8816c1733fe4e47ec3e77b094c9f4fc03f8b08eff2d47a782554550403b50581. 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/AR66E1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8301fb0ae5cf71c69f3118eed075d86422842a499dd07a68e1f870808475c7c6. 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/AR66E1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c02ad781f14679859575146e8e095b591118888dff5e0035146831ea130f563. 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/AR66E1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281802c6505870f72552cfbb180db7484212323230839380a4b549b58eb3dc31. 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/AR66E1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72637638faa896255cf601c612e6d7dec5e61d632a129cb4ee4e60c474a6a1f2. 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/AR66E1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95edddf671ae2375ca1fb4c0d070761c3d299cc7be1485c11e93ac2ebb358160. 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/AR66E1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02e23eac1400e9f8b42f84271fdbedd526f05992f5e70e634e6c7d35e23b99a. 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/AR66E1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e805d4faae6a76faceac4a7ef59e5e109b06017271930727660aff94ae5ee80. 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/AR66E1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716bf9398984173743d164580a3b7d52953bdb82a46949739279a7bd9cc44a37. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/AR66E1700008.
Leonor - Modern Bellydance Sounds, Vol. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1ae47bdfdb5e5bab396139a61c5cb5b95069d8c360e8947c6ef1b5abe4d5ab. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:01:20Z), 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/AR6DB1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c1fe61e8da90ff021ea9d4619439a0d42c25512fe1327df90ad6ee2f50689b. 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/AR6DB1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2176324f91dc0329572d93ec750e9d3e37b4beabc0dc511c03e152b202337d32. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/AR6DB1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8359ac6285d7011825a7f20169ff50b421d16cac234d83c6ffd4e4528f1020. 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/AR6DB1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9276836e1568784df5091c0e6a8fd90af41d52dce99c1235d3ad9c59f03c9d9. 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/AR6DB1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506acd505afc3481dbacc81ee04860731236ce4fa060da0aea03db33ef447ba2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:36:49Z), 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/AR6DB1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6f5c31cbc7fda7bf9c8d8daefa2e57030ea8daff139c06d2dc6b78d6652527. 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/AR6DB1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59394db3448f6a9a4005b259e45130fb523a4d5b76d07f95fef7e197e95ee893. 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/AR6DB1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84696ee3538995e7509032b8af430ddfd9f25279c2ebcf5a167bba030b3771d5. 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/AR6DB1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea279e20b33d0ce9f12f39a9fd99ffb93d43f11e7bcfb67302df6ad2e98d320. 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/AR6DB1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3c0f6ebe56b53c765f0443eb1b18900c7ada490039ff85b43bc19ba79c7a31. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/AR6DB1700006.