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 0xa2321b8cc441f49d8d21c47e64356d2f50a8a3afdf29270a25a793f48119d95a. 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/4caabc63-108a-4d9d-a35c-b05d8933b84e.json and https://artists.proofprofile.net/proofs/artist/4caabc63-108a-4d9d-a35c-b05d8933b84e.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 0xc4806c3f94bac659b0eff69132a52e1db25aa75d9e50ae51ac63a384f4d0e3b9. 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/GB7NR1922602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc791dabad20bd96cf4172332f171eaf231e429e5379a113ccee7c83a55e24a. 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/DEW872106354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc058ae3d4bf1ff092b7ef00f01956e9cdb8735fb3e4772f9a6af1da8fc28a65d. 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/DEW872106353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda94808be70c747f338590d8d23867bfe20b1535807b88fcbd16eff780878672. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPX42100467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9778e26156dce4e5cdc6b7d9fa64f2239c038fec3c8509682026f3a8e6e03795. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/DEPX42100468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62014a144cb9b89864d584e1e31c317dd9d48a6137974232f157038b7634961. 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/DEBE72200799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ff0099175954e93c425a8750449adc19d4fbd14fd20a1db556cb42b35f9f0a. 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/US39N2303085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9771c14d31571f3f56dd4c06fcb63ff21316f38d94f7495336463d7d85697b. 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/DEBE72300614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62014a144cb9b89864d584e1e31c317dd9d48a6137974232f157038b7634961. 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/DEBE72200799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22522fd0369064e5bf54b5947f2ae9616ab4d10ebd5a83fd2b3338084959f6f2. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/NLF712400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f39ddf9c773b84ce934c3752f10e90170493e5934f3b6ec6a0f63cd0fe766c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/NLF712306545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a578fa231017f61ec8ca53307164d6af786845b75ffab4b3b07c20dde89623. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NLF712400659.
Love The Rain Days (Santiago Garcia Remix)
Love the Rain Days (Santiago Garcia Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8703ac5659ee9c7ad9969878ae805393503ee1574acc06f70c03a9187bae670. 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/NLF712402040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7f634426201ea7746b7d8ff77f4ba40963d4399d182da7476a8197e8d0372f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/NLF712402226.
Fire In My Soul (John Digweed & Nick Muir Remix)
Fire in My Soul (John Digweed & Nick Miur Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8caa3e757cf7c9e05f8e995688a8fcb300ddffb643ee39231004a6987775b30. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLF712406855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8caa3e757cf7c9e05f8e995688a8fcb300ddffb643ee39231004a6987775b30. 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/NLF712406855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7f634426201ea7746b7d8ff77f4ba40963d4399d182da7476a8197e8d0372f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/NLF712402226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8313c5d89b06051e2da755c450087e945ee8e47dba303bd3340eeb8dca16666a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLF712401577.
Love The Rain Days - Santiago Garcia Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb4a7f2832d630435ca56cc46d8ac86a7a3dd79b305b909f439329a6f82b4fd. 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/NLF712401251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6483dcc8b6a7f9b36be8164bdad33113f27cd6c13abb13421ecdf58a69b82a9f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLF712405316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8caa3e757cf7c9e05f8e995688a8fcb300ddffb643ee39231004a6987775b30. 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/NLF712406855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d08ba29361808352ae2def79db42b82b54ec33d857fa412b76bb54a6abca4c. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/IL4612400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6587fc046ea7877ec683ca230b8845f987d236d1227177d35042adb93a5683. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/AUDCB1702973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5eb321ba72a3ac5ee26fc8390ba8718fe0ff55e402e437977bc65221e7e7c7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USUYG1597436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c26e9693271141289553cabcf36d6ecb7db440512d33211ccd31b5963fca702. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/USNRS2544043.
Can't Stop - Kenny Dope O'Gutta Remix Reprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6834774459f9f6bbeb132390cd196be84c55e74a98218667d61fa99ae955d554. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/USNRS2544045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862a25e61ef96361d493b21332ae7c9e44a488e2ba38fc316914ab5f1fb1f361. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/DEBE72500558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6aeb55a4f36676a88752397351c05763ce8114c6476429401155ea06b4ee15. 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/USUYG1468455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ad92aa98691ad38b8efb719cbcab3df0e142362d66a06c1161f5243f147084. 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/DEBE72300167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dea742d02cec79e10c87bb88341c49b5b0eac77673f43a4cb8592431d813cb. 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/FRDKW2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6e56439e7ecc522f9040c663d62737a5c1a32a6e36efb06d8c6300a28acee5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLF711905136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c0a9d653201ca50a89e9aebc09a863839904002fc01ddec237f1660893139b. 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/NLHR22200972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ec1170b6a66ded2f1d41bf276ab0ea22e7542c5422915482fec46694a5c113. 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/NLHR22200427.