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 0xd6254e249e8b5c57de68f89b7d9004ed5d158badb3391a09383dbecc9252fd18. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/998a0496-9c30-4b9f-a9b3-db1239cd1e22.json and https://artists.proofprofile.net/proofs/artist/998a0496-9c30-4b9f-a9b3-db1239cd1e22.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 0x21dcb9ff2f7484ce4b662c1f189c49350911ba143bfa0eface85af0d3c8510dd. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/DECY51167432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a07e1564244fec36ef1ac4fd5c31980c6e9788a446574a2cb5041843eb18e0. 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/DECY51167431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49491e336f1568d049b120b557808ba3cacae3599ed20908e94d8a93c38321f9. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/DECY52100798.
Track 5 / Verge (The Remixes By Robert Hood & Sigha)
Track 5 / Verge (The Remixes by Robert Hood & Sigha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799e4f4ce6eff876a5ec11213f1698d8c27dab499bb39cbc76d8ea7ac5e292fe. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/DECY51901340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fc2cf1f21ade418072f2e514552c52d174f7634a332df73e5a00adc97f1315. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:22:03Z), 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/DECY51901341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e429ec50f293c89612f205cca0394b5260f50e871e2448be2e42e076f8b4ca. 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/DECY51902928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4171f0163b19c2a0a060175cbf83c5449b038c0a55690e5669e0c91fbf2de97. 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/DECY51902930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad7839f2642b7bd843270715d79be3f4ad37076ef71e0595003c2232f1de723. 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/DECY51902932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a91e57a830e8d9d3552eb8f0c69d93ff94a55db83f58557b3078444c65e88e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DECY51902934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1fcf538c230b027beee7aa6a59002a6a4b837aab53b834c1a098c415d42f5e. 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/DECY51902935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecc6617c76dafde18b4db566055ac605081663a66d6322665e303bc61628ad2. 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/DECY51902927.
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 0x65a8db844bce94ba69a3b1aea4f28d996de8c41709b8fdc61aaab676a303e6ed. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DECY51902933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d88e78ddae76f08b3069afcaf2ec63c02c4ede994e995de140aaa063a4f13f2. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DECY51902936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c98a370c1d7d1dc5986431569b418f163d13d345f51e750355372fde8640a. 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/DECY52002656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe2287d9af1587ae841ea3216cd5a360728d2b09f2b1a3edd0944cf66cd1396. 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/NLM791700160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454c8bc026221869024b23d0760680982696fe2f7e3b7aef962290ef278807b5. 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/NLS241102694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c86558a73bc3c05fd8fdd44ff985ea6a38574d85106ce08d7d30fa83152df7. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/NLCK42216230.