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 0x33ba8c74baf32a1a566017620736e8f98b7d18aba0c6e85dc2074c37a1d37fe3. 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/f25e8243-d150-43eb-b1f6-c4a038985122.json and https://artists.proofprofile.net/proofs/artist/f25e8243-d150-43eb-b1f6-c4a038985122.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 0x615acfc57f55cdbbcfc9d0892e5335d3c00d37b3f071f37b13c1b40d057d0f88. 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/GBKQU1660760.
Aanwezig Bootleg (feat. Ir-Sais, Shans & Jayh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e71710fe5e8ef11e3229c5071419fa497d61271cd11613d501f632a5a6b56c. 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/TCADD1738630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2640c8fe7cbf854130a34dcb19693ba3aa24c4dc4f299ae8aa0b2064d6ba50e. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USQY51763404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b4c6cb2a2867d7feca0c2878eddff9777797659a0f73fefab4e14a176262cb. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USQY51763406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a03ff576e211a8e39a48965f13b56b59224a0bcddb7c04c47e9f23085cab73b. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/GBKQU2061263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53301591d3c6d8a5d55c9936275609f35bd6e53482deed52c22796d1cec4774f. 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/GBLV62039199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89cfb251b8f5534c3b961cdb89058d8e01c11f609ddb5bd2c4eb7f7ea7079f7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBKQU2151742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7296e1aa7e16a74fbc05ab037e5787bd3fef3ebdedd98a3084f941d9430d027. 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/GBKQU2162854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4841c8d387a91b77126f4c8e1294790c416d8de9c783c9bd5aff2df96c5526f. 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/QZDA42582571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978a216e18ca305461f0b4308eef31e82df1e57a8be4c352efe4fe767644ebd2. 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/QT3FE2513462.
Lights Out (Too Drunk) [feat. Hayla] - Menasa Remix
Lights Out (Too Drunk) [feat. Hayla] [The Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731945de2958bcc149d4482686516d152a4f5abbdd1914bc12caf307721d7f5a. 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/DEL711610282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268110ca1c794a2356ff879062e3e74c92ffc17d9142f4267e37c8b426923c09. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:19:48Z), 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/TCADR1847583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de582e5c85f3f41d2dbf769c5a219aca3457b491dcd7fdc29996fefa895bc8. 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/TCAEL1912580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49103bc5a253e790639135fa90db34dbf7d6c759e65c5c841bb0ece30785fb7. 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/TCAIT2422446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30080c33296dba12badd7c8a67eada16512eb8bb6cc8e56bf79118d9ff3880cc. 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/GBKQU1760959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7d7e39ddc0c6d28c64f3e496eef67a65518e947c5d77bb162c8923df44b423. 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/NL5MF2100043.
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