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 0xba240f804d4da908769e1de2632acf73d32fbd64023017a79ae15c1f6236e172. 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/e65d0902-32e7-4b56-9e60-57d175e832c6.json and https://artists.proofprofile.net/proofs/artist/e65d0902-32e7-4b56-9e60-57d175e832c6.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 0x8bdc194e1c47ffa672c78ca1cac481e7bd286a91c8fdca6a91d07c0bf9ce6cf2. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:12:23Z), 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/SKC531100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1418539c051629308f73bfe22c74874b3b78236ebfb4a18462641a72756e1371. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SKE741500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b78308d88ed223dee2d92c1387a4dac96a3fd09041cb67f5fca0d35dc426b3. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:49:00Z), 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/SKE741500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d9fbc478c16d7d8e0528122554993e31ba3246dfb557883c4d65024782b304. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SKE741500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1a39232bb4055778fa71530e91603e6abbdbbd2dc2920065eee4c0afc0b458. 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/SKE741500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51772a395cb9879593e77fa3757fa8419e0be2d4630221460b31489c14057a6f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/SKE741500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95430946ded256e5313ffcc8e62b737d2f202b00946f637cadae7656c9983b65. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/SKE741500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2ead592717c0e00e57d3b09d7ef777683ad0a86c7d27bad3c7a80572e512dc. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SKE741500214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccc56396f830aaf30fd5c0c4d44d64a1393f3266ca91ca0a063e82a84f004f6. 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/SKE741700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82aeae87803e71790c487b47035bca52acbc6a3f8c5b42e9602da57a1cda9079. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/SKE741700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa21d87afe7c21ce9a0ca7391ca0499e69718f6bb8bbbe418d12bafe612a15a7. 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/SKA012400015.
Nestarám Se O Nikoho A Pálim Zoot - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26674181f7b0b2a47186d99f32efc7c78923194cb83551704197846b90a62ec8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBMA21261203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1ed4a594cb873a93fd7ae51c8689f9a023e5371a5781ae400e6f19c813e094. 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/TCABN1383378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ea7f83f3654068b418b08c0a8386161f551dbb3d20de6215036eb5bd36f09d. 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/QZNWQ2008822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c596a48e6a4ab0896495030c38de6621a998c1e00a0f8333bbea98755c429d2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNWQ2008824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ef159493c9a4031d4d7a6c08adaa3d1aaa05c082ba39a5e5cda1e12d786337. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:23:52Z), 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/SKA012400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f38c04f40102221f83e96c7f7279bdb1a2be8e3508d514d60845c3502ab9fa. 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/USHM91827333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea47e2c68a0d512fb735f3737951e96740daf70b51c98123eaebb8d1374855e0. 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/SKB930900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501e15a5a6e28f6a7f2d94b56ae9bd76df8bdae23e0c2c5cdc2a1f059991214a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZWDW2218462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2817d1b6fc1c7e8e1d6df020bde758b66da11401e0f42aaba19a0fac654a5124. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SKA012100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0add089286534742ff4747fe2f6cfd450e3f994698b41155edb0153d5a78ba51. 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/QMANG2291627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32aa97cd19abbb50aa255b89447b4a1fe439ffc6674c9ef87d82aeb4ecf0940. 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/USJ3V1164932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106117a26fd989b2a92a7cbbff925fe4225261a120ef70a0f178f14c30e9f996. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SKE741300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7310668ba54df3a2be2bcec76fc3f893dab0d96eb746d0ea4059a32daf653f8f. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/CZH110900098.
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 0xea6d2da4716257b3a84053646afeba599ea8fd4d223313da4f8505c39e421010. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZHN62005876.