1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9c7031b883e53dd8474d50133d8375b900cc34d546911410a56cbc94e2bbc4ab. 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/ec2a84f3-8f7e-47bb-be37-d027a60d7d95.json and https://artists.proofprofile.net/proofs/artist/ec2a84f3-8f7e-47bb-be37-d027a60d7d95.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 → block OTSBitcoinBlock must exist at that height 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 0xdaf8fcd4c68a6578ff9e9773dcab54e596d532a405dbf864ec37f05f41fe6c1d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPX2361466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf8fcd4c68a6578ff9e9773dcab54e596d532a405dbf864ec37f05f41fe6c1d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCJPX2361466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504c26cb93d4707e4ff55822649b7643fb2c1b9a9a5b0157398273212c011b0f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCJPY2357423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504c26cb93d4707e4ff55822649b7643fb2c1b9a9a5b0157398273212c011b0f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPY2357423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2f70f0572306a51227216a62c0bfdeaf615ca2deba87156db2f1fb21c4d338. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCJPW2339711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fea4339f11cb8fd78e5cfeef7df133072dcd4331d4a89e6c9e0ba519f80cc8f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:38:51Z), 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/TCJPA2471592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e263f0888c19442dc22f1ab48a4e4487488c436be0e35541f7e51650ac3a71f. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:04:57Z), 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/TCJPX2361460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e44b8cc961b6e435ed60b861a5b62045c820b4a75d570d81d198a681c3492f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPX2361472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5921b36f3656ac0aa651118443545aa76220201d8972dc2baef1c1d65f2b0fa3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCJPA2471596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2f70f0572306a51227216a62c0bfdeaf615ca2deba87156db2f1fb21c4d338. 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/TCJPW2339711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e44b8cc961b6e435ed60b861a5b62045c820b4a75d570d81d198a681c3492f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPX2361472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5921b36f3656ac0aa651118443545aa76220201d8972dc2baef1c1d65f2b0fa3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPA2471596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100556491b8790a3e683860d2c09168f1ec171ff1e2fd3284713042685e71796. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/JPH372400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b65eea842d7d1c566c86087d069dab4ef2886a880ce4679b972209d5eb2a03a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPH372400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100556491b8790a3e683860d2c09168f1ec171ff1e2fd3284713042685e71796. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPH372400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ff6fc041effec4454e1e448f19bd9ea8c7872f53587923301f301468af96a6. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/JPH372400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6741dff4b71bcca4c72fa2a67252191c3688feca7d76a7a9b851f5076e198f4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPH372400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b65eea842d7d1c566c86087d069dab4ef2886a880ce4679b972209d5eb2a03a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPH372400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43626c2be45e853c59f2996b8c18f2eae05f0c1b70887f3c7975b9ec9a9d457c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/JPH372500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43626c2be45e853c59f2996b8c18f2eae05f0c1b70887f3c7975b9ec9a9d457c. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/JPH372500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee069d85bff26ee3cb791f8639b5cd1c5e8d03eb64598e918c1361a5dfdeb839. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/JPH372500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdf7b3749c90b1a5cd218a71179308b7efd05dbb4ab7295913d48844f66c0fd. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:38:44Z), 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/JPH372500012.