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 0x9fb265cb3df3f418053f6b76f2f63fb67ca9d91ae9c23210e01b7c90d903102a. 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/2ef6917c-328f-49cd-99b9-90d113141163.json and https://artists.proofprofile.net/proofs/artist/2ef6917c-328f-49cd-99b9-90d113141163.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Freedom (feat. Asher Roth, Jonathan Chapman & Leon Q. Allen)
Freedom2 (feat. Asher Roth, Jonathan Chapman & Leon Q. Allen)
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 0x9e260f934b5709f8b03091c891f740c5346e63b3c5e4650dd2b713583f53f078. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCADA1741255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaeb81c5d1310d24491d90855ed33ffd3e4a99dbda79b1058b97e4e15c176235. 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/QZTB82294626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5b3eb4b911f126ca1a60c0ec12b1fdb31d1015de8b66123f44c37c4e8a4c0d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZTB82294627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977e3c81b4edbb8e787798ab93d43a9aad3ef1047cf30cfc65c5fac133616d26. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA62564890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f475cb73254153560020bb44e1380c8386b3dafb7dd83a28c8a38210a5853e. 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/QZTB92210347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec165f77c113f0aab107b86be97f849cfb0f16663c12237ea84097d76f55a822. 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/QZTB92210348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5b3eb4b911f126ca1a60c0ec12b1fdb31d1015de8b66123f44c37c4e8a4c0d. 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/QZTB82294627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf28932bb3d55bf8b00239e9e265e8049d391e41a8916ddb2f167ac1c6096a92. 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/QZTB92210349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bcae5fdcafdadbb620abd0977cbcc7a88a6893fdf37f40b76751683557a07b. 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/QZTB92210350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305d05e2cb440b2f627898bc556146feb98cc01f7a29849616634a14bae9bda5. 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/QZTB92210351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ef83a3f764b640343360da3cbe8e1e544b3135be888df69ac91473912a0d99. 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/QZTB92210352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc48316ad087aa14c6c2b55b12370dc8c1f8e5a115da3ea1e045c6b71dd0200. 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/QZTB92210353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaeb81c5d1310d24491d90855ed33ffd3e4a99dbda79b1058b97e4e15c176235. 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/QZTB82294626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7927a09d2c2aac2f58b0306a17f8d8d6bfc14de896d3989dcfc4bab7d0d9a6. 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/QZTB92210354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ce87aea5513eeecef56d5c320a4046829146f3f085a6807ee3d9d46d4eddae. 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/QZTB92210355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e67d8239fadafc2c9d6575445e80d2a9546746e607002c6020ccf1a98940c36. 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/QZTB92210356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b13187d8c1e5fd654d9da6f0573c3d98819a52b69f3d97e2caa066c6b8e9ab4. 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/QZTB92210357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5f4f2fafc67d0c826b94b79de056ae79a944434f517a60f1d17a29eb89bd4f. 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/QZTB92210358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe503fa345978370863c7bd1abe9ba6071d66d048d875284de1c890591957ac31. 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/QZTB92210359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdd698b4dce32377d834b1ec5b6581df9e5674eab7982c5723bcfedcf528f2e. 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/QZTB92210360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176de26fc4b1f49929b528e37cf8ac4a86269f7ff401b7fd799bb100551e2177. 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/QZTB92210361.