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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282059782dfcdfdcacb13984925d868bca0e3481e63cc9bbc538dfefbb78370b. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d03f83c-2a2f-427f-8bc8-803db0686660.json and https://artists.proofprofile.net/proofs/artist/0d03f83c-2a2f-427f-8bc8-803db0686660.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf453daedfb59bfc827a60cfe9a12db8e37bced4b273886cb1cdd1e1a3feb97c7. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QM4TX2200037.
we’re dying (H4RDY Remix) (feat. Paloalto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51d84c0f229cda7e97acdf04bd7fb48291c20d7f14f19a0a93f0bb3adf7b5e0. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QM4TX2200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62058e216abc9039b85c7b834d7ad99773de8b3a3de9987fa548c44de3418862. 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/QM4TW2299941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3457940f97841fc04a9d911a882dfaaad30d259c8f29a690e52cf213da2e9b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QM4TW2299942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc514581eab6e895c1aecf4f637764bdeb6265b799ca4e43d8e29db46c418854a. 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/QM4TW2299944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940f4554801b1ee1660dffd0b9b40c35476bdfe25b150f7cc24ce6ca37f1593d. 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/QM4TW2299945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b63d48c8203e81064f8e43072aeb106e1a81b81027f9344d1d4a3517b4d276b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QM4TW2299946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1620419ecdd45cc0913c3a468c549bec45bfc301862dfbb8bd64bdb04f4ad39f. 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/QM4TW2299947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93df8ac06133f5e29dfd7ecd3c408bffd267de4948582deab880c6c11f98347. 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/QM4TW2299948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f143ceec5ffa0cbbfcb5532386dd8a6c85f83baf8c730a7f0dde7689646856. 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/QMFME2249331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e8146e65077d9f979ac473c7bbf03c33c524de0614e5830098ca610d468642. 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/QMDA72176503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1a12df882a3dae884ef563e4b4e090155b378ff5d2248f30bb68d9efebe9f6. 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/QMFME2172829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911fb6199be773670e82a8365f315c47b64a7f5f6451bf3d54a27146bc57ebcd. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/QMFME2172830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474e19868e853e1a2c9cab8e7243628c4fa7d128264042ce00dfcb8fd7687edf. 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/QMFME2172831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef99bb3d8fba0cff90f87760ef2892b336e288b66a244cd07ed4f029eb68b03b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/KRA252000248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f005c86d978ec502c6a93833f4097aed2ad2af7f1df9c9143fa1bd1f621e25. 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/KRA251902168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a62b2100d446d1b0c840ae182695575ef62fe7b4b92cf0f22a61d09628d51bc. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/KRA251901123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19236c492b49d19ceea8adff57576e38b0404fe2ef44528b28a51a14fdb2067. 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/KRMIM1901129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655a05322fe433a029f5648dcbe92d00dd10880c7cad388804fe474d25bcfd9c. 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/KRB471801455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14caffcdfce37743563387e900df38f8b4446f3c4f2ed026a706b9a0ab6d4dfa. 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/KRA381703092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4bb140eeb955e50adb015ecfaa8186e1e3679316053c230e9f31d49d253c9b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/KRNAR1803636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1473b452e408e47b52f4b2038da5049620d4c934652f73b0845b12e881d7a26b. 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/KRNAR1803637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a82f1e465ba63bbe4cd99ff11854dd893a1ff4f4ac73c2e7b18a0ffd8dc69f6. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/KRNAR1803638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e872f305b3b550c67418a36951bbcaac80476f00fac72d7a913a3adbe2a374. 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/KRNAR1803639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba67f332d7abceb06736f7a8edc77818818b9cf4cbe599ed2bfb236a42e6be1. 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/KRNAR1705920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdf4884c5c883f9a372ef6e66f6bf81e5397f8b2415b57c5e8b77cf057d46ec. 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/KRNAR1700949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbf05b2aa1262dcea0d8e8de1d1bfe82a12027a2214f5dc34462767bc93e44e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/KRNAR1700950.
4 the Youth (feat. OLNL, YESEO, Ku One Chan, Cherry Coke & Minje)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb853b5509a8aa2ec5295178dedbd90c55812b519da6ff83ff3f9181965609840. 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/KRC391800022.