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 0x93154a559c104fc35d80de0097393309e1b771e29845db932699ea71906c0c66. 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/973e29d2-c0f7-425a-8b3f-e3fdeda50196.json and https://artists.proofprofile.net/proofs/artist/973e29d2-c0f7-425a-8b3f-e3fdeda50196.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 0xc01282e5dd0c1e51d1736a9edf853b03b9d2cfdf819c0979421848f059bea847. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCJPX2361001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc1d0a4b80927e22126116aa2211e46ea600a780ae28581cfc2e4caf6135292. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCJPX2361002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1160bfc1f1e00dced6cb70a883d73b598882434422d660b63320b4ec8458275a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/TCJPX2361004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8612d76dbb286cbc6c041cd9245d486d6c7509ea3b540b9cbbfcc724b3657931. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/TCJPX2361007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3fed2940f83113ced224ec027a4a0b8a65c5686c3f00b4760154cdc6ff43e1. 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/TCJPX2361009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01282e5dd0c1e51d1736a9edf853b03b9d2cfdf819c0979421848f059bea847. 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/TCJPX2361001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abeb7b1b67c9cf30aa94e04d3c213b022774b6a2a0bfed494e5212258c1d4a7. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCJPX2361003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1160bfc1f1e00dced6cb70a883d73b598882434422d660b63320b4ec8458275a. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/TCJPX2361004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8612d76dbb286cbc6c041cd9245d486d6c7509ea3b540b9cbbfcc724b3657931. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCJPX2361007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3fed2940f83113ced224ec027a4a0b8a65c5686c3f00b4760154cdc6ff43e1. 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/TCJPX2361009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa47d9db4746d125a3f58d77f07d9fa68696642368e5b0ff036b532a75cd18bf. 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/TCJPZ2497772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccad05bb7de8360a9011ec4b865bd16d83cfe264eba1db7940bc1ce871e07e0a. 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/TCJPZ2497782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccad05bb7de8360a9011ec4b865bd16d83cfe264eba1db7940bc1ce871e07e0a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPZ2497782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0761d71e4c404e9ccd03646d22a0c5e8d60030a52b17d00c477da71e4c12a0e. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TCJPA2400832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ccc53d7808538fea4013ee9e8513ed0ef1c18c73da399f41adf8809ba0943a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/TCJPB2443644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23e93a34780314cec8e976a49a3152642c97538ef4a8eceb82147ee12b17af1. 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/TCJPC2458754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e200a8526edc8ee55683d54817e283dcba96c1dee9532832c17f6053168193. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/TCJPC2458755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f428b4a51de426e03fe6089f319978dbbdfbb499d340690d82ef11414b121c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCJPC2458756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3221924a4209595515ffd5544b741d390a09efacfd093efcd487ba7b15968c5d. 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/TCJPC2458757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17491e816bb7664c57617c2adb7e58ac77233683488b7d005deeff39b82846f3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPC2458758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe826265c69d45c6c2abbe58bd04160996290f72705c149f863a3e8bdcc3259cc. 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/TCJPC2458759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe67f42465a148f69660a35eb0770994be888197594eb45856ec801f635f026. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/TCJPC2458761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27de58fa8bf8d6a1f41a123a1f92772aedde321bfff37af99ccffa21ba8b8de8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCJPC2458762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23e93a34780314cec8e976a49a3152642c97538ef4a8eceb82147ee12b17af1. 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/TCJPC2458754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e200a8526edc8ee55683d54817e283dcba96c1dee9532832c17f6053168193. 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/TCJPC2458755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17491e816bb7664c57617c2adb7e58ac77233683488b7d005deeff39b82846f3. 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/TCJPC2458758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe826265c69d45c6c2abbe58bd04160996290f72705c149f863a3e8bdcc3259cc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPC2458759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec50dca347b1fba97257c55104065691552fae84637499fcda830e792808995. 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/JPP302500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674ee3294ce659197195aa6b1f8aef4f4f7aed76d0d192d78d301d8513d96951. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/TCJPI2530927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674ee3294ce659197195aa6b1f8aef4f4f7aed76d0d192d78d301d8513d96951. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCJPI2530927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabcba7e9a176f505f8362eec6a1cbfd331dd9d7df021e78ff90dded6852753d. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/TCJPK2539096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabcba7e9a176f505f8362eec6a1cbfd331dd9d7df021e78ff90dded6852753d. 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/TCJPK2539096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95e15c5b2322d45279b5a96c274f663cbd38cf8e5baf3c561f059a84d718005. 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/QZZ7P2477159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf681cb29e1a8984d9d6f280cb8f3594c520696b1d2991ca6955fba1200644e4. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCJPD2538454.
Scratch the Anthem!!! - vol. 1 (Remix Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fd9b186213defa57fcb53f8c874f53663d17b3f43d62eee415bbc4c60de114. 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/TCJPB2497545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e1665c0963c4d85d4a1a405311a767b5a1630a03d1049416aa685ba7cc1abb. 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/QZTBA2331723.