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 0xbfb269330d8c11e05bc29076b3073b1e3023877761084042fe0496cb80c1b40b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9611eec-fae2-4826-89c9-3ef24bb9b46f.json and https://artists.proofprofile.net/proofs/artist/b9611eec-fae2-4826-89c9-3ef24bb9b46f.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 0x23fe54f389fd6fef42ce7e636c64c8cf868b66f2a279199953c422f76de24a11. 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/FR05S0700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaded8f9cdd610a2b13aca6eb89b4827ef83c759c45be3934dde178e56f9f5b0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR9W11204780.
Gimme di wine (feat. Young Chang Mc, Riddla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160f5a2aecfad0dcf60e6152696d265d8f17a0cbe66d0dfcce5af569f132bd46. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR6V81832679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a18cd800a7ba94c9bfd391759c6784d57884f77b8c3e15c17a3c6516c9647eb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR6V81832687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd3a986168e2a0a34611ef9a98dfc0ed0ff01461a50e17e94ecb1842840625e. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/FR6V81832702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a33990d1b33bc297ab5eb55599c97b45bf040c8258a1b517975327a34d4b99. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/FR6V81832706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce4c08e8c497e960112cb11c9d30ff3b59a320d79a4790e3b321140283468e9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V82604861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee2be7a2605d6200e82408affdfb736ba7e0f77e6b8cdf30f14aebdd29da69f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:37:08Z), 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/FR5FL1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b40f5baf74d5c5530266350be39d6ef3ae71958eb8df88fe82c126a81e8b1ad. 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/FR5FL1300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300e2dc7ffc2e8b85e3b5c2fa9c3e99248f3077405b1e3c3b9435215ef696ca8. 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/FR5FL1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4c524bfef52ecbcfaffec906f13e5575f269c8b97421a989416151a5cbdac0. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR5FL1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34ff0158fe8d053bcd218d739b4d443b51e9f9dc972b11ae2947578f92b6400. 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/FR5FL1900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0a644cc7ac42b4bfb559ca6e377c9a1ab28dd523e554d7d94c866efe42d995. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:26Z), 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/QZHNA2147756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39cec6ed1d6d342ee8fc873d26289a56dd8c5ee53154050cc783932f893e31c. 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/FR8FB2307800.