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 0xb4ba72ff9b65da2a5ef1aef49bbd6f5acb0ce68a67877abba13e6cb16c430193. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acaa98bb-5e0e-48c0-88c0-e578faf73316.json and https://artists.proofprofile.net/proofs/artist/acaa98bb-5e0e-48c0-88c0-e578faf73316.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 0xbdd2b90ab5f5bb8d825c940bf4d6a03293caa2937d8413ba9eee22531f93c529. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US25L2100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c97a03e6b4f09401478960dda72dc903a8006b44789dca045f93bd819e2820f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/US25L2100180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47b51c213e08702ddf9a580b8b5f22f2dbed3456e6b62303eb81b32657eca55. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US25L2100189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbf4934062fd95ff51b3622a2337cd7fe222eaba37db8c252c890a0569a6b11. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/US25L2100183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3c93407d739fa40891696632d7d4c5f4d67677829fc6f0c6544bfb084c2e89. 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/US25L2100184.
Promises Never Fail / The Everlasting - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211285437bd92cd23b1c189d3316ed86b82d74763b2620c11dadcde5da88bbd8. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/US25L2100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a8a79378917adb2e51e72d99cf308c338462ebfc892330b518083b400d790f. 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/US25L2100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886bfa007377a63bfd2a1a2977ada1ecb3bc035f31c23af095586acc7fc99874. 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/US25L2100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7068ed41fc4cf0bec966dc7bc9dfc018b647263efeb3543a87823d4a123bd347. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:41:24Z), 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/US25L2100191.
Only You Can Satisfy / You Satisfy - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275d29c61af94a94b51b2b835e42cb49dd077e199459302dfb2971abd9f9a7fb. 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/US25L2100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ddeb81ab653407d75c791b1f2b2dcf5dd291f806620117a051270f49b13665. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/US25L2100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ebaeb8f932e7fff187965fcfdc4b4c6cc1c68bce8874b32dce012b757fa567. 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/US25L2100178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc5aa24dc2d0de4dd99ffd6b372088f1414fd23345128a9be8e4be7607a6944. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/US25L2100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d863a806ff26a9838a2f7c9a24fa97aabf3ab4c0779b496191f252255bbfc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/US25L2100188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1357ee4dd2484b821f1890ac161c4df2dcdfef62eb06f1a348f38e347c79ce. 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/US25L2100187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886bfa007377a63bfd2a1a2977ada1ecb3bc035f31c23af095586acc7fc99874. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US25L2100182.