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 0xdba3e6e53bdb1b9e3c750195f45a18bdb117f623a10e929f6def54e770c0da12. 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/b1164091-282c-4987-9f6e-0794019ed46c.json and https://artists.proofprofile.net/proofs/artist/b1164091-282c-4987-9f6e-0794019ed46c.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 0xee9119295437a52b86552c164eeec233d9de76c1b1e5210e610e43957a6b2e45. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEKV20911328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3864daa6b822d3297ffee6f0eb117715c500b4e15078af8c9b33bdf0f2edc8. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/DEKV21612605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aadd9363a09ae2ba252a023817e6910a39153992947e9f7c02c284ee782f19. 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/DEKV21800495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0349fc2a100983272bac15140b8354e0d9ef96662ed535283dc1b49a52df5825. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEKV21800497.
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 0x15ec092df7a3bc6e519c45818f4246cca8eb29147fa3ff531416877a07746503. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DEKV21800500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cc2c598324483864195c388d4893c2d999dc69d4f9021daffe839e88b0e4c5. 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/DEKV21800810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa740a0344133997b0f988211562135bb9ae912700846d1fb8a190efead00c52d. 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/DEKV21800811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d78c5d9950f3ade95e0c664bb5472af5e568079a8ca5125cede5c4e139b3a1. 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/DEKV21800812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635c829f95ccf0a6d4b104a92380f9ae026b609fe32cfdc71da1cb71d3d23b08. 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/DEKV21800817.
When I'm Gone - Solitary Experiments Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e4af708c17d4ae94de01832a98c2bcd06e5b8ec07addb9c22d559d3b45f863. 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/DEKV21800840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d52f39c0895e47f552ee147121781f944ef8807706f20d76a3ec5c07ad462a. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/DEKV21800808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb15e580d7b5e635e8e0d6890fd28345815f5584341b9057843704210c04d0f. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/DEKV21800809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9163486a1764a5e8fcf05f54d5f79fdc80ce88b380fd9742a960d775a2e1714. 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/DEKV21800813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aba2f6d84f60a5f84d0ee8b47e1bb3f6d49251752a95732bff3511d69e8c6d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEKV21800814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5647971b78b9da10446c32e8b1bc0505050d05b55b37d12c9a80109cd4b03b. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEKV21800815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51489a93b95f440b6772f8c2e0d61a30acaeac89487d3072dedd8e12f1e270d. 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/DEKV21800816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9fa7962e809b718b5ff70f04ed2b23d9e010bb78f075013f88183581c40406. 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/DEKV21800818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a6b8339c554b13a034b97c62da2cf93e88b456b1f7aea98f219d636250b14c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEKV21800819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1db31ea069b8c6ac69e4dff018398e357c6c06e0919f6fa45935585a9c64ef7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEKV21800841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6becf67302dabd3d7129529fd544bdfebf04e6385d64899bcdfb87ca9e8c16be. 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/DEKV21801703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ab6c07478036250a6543261cb8ab9a823c4c49567929d16f3432d9dd96426c. 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/DEKV21801704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b1668a321f743d84ba35d9827287ba610e1fcf8f1a6686c460f43484690685. 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/DEKV21802068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310c468a898ae99eb5d8b752d1c3b32ce124a65e248e721f28c8522e65c754f4. 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/DEKV21802062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95a5060ed411be2d0ab27fae66754272f828d26d7b95b4c2a4c29691c467b8d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEKV21802063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6becf67302dabd3d7129529fd544bdfebf04e6385d64899bcdfb87ca9e8c16be. 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/DEKV21801703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c6013163dfffbb9112c099b8b7c8e3898dd448429442fb7a3c96112758232d. 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/DEWG81700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f82f1387e2600cf292e87a54692ea30ef76a2fc344980d14cf8645da9d5cc8. 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/DESE51500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7816c8a367e54e1c3adcb76613f0f3bf21bbfa0bef8c5a048653c5b8d17e1554. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZTAX2326706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036a41536048ee9149fa6193b3dc29743539d8df83da880a81dd3410c502358f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEKV21800465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb55a287e9588daf17d6cb1ef06afb46eeaca3bd23c4b1716ca0faa73e5d7e5. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZPJ32209364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e68da15f6e093c936d6307d3d11f1492f8f4a11c32277b648a933863520a4d. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/US57M2022506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117d71589289bb34865c2e71699cc0e2e87042449559662a2da73c68abd5d62b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEBZ71700257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6758b87c9800a6dd5ee76649d8c33db3287002a63dd9efbbc91f5c8afadcd92f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEOV41600920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28817f6a6f8517e1fdd2e682d691161fecbba1ea0210aada12701a8a2d7060c8. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEWG82300068.