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 0xbe02e4e316a08ca8a4b2f2c18d11d28dc009354fb1c297339b249ae2b8ff3104. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88026649-4903-4156-9929-7058f4d39e69.json and https://artists.proofprofile.net/proofs/artist/88026649-4903-4156-9929-7058f4d39e69.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 0x2640bdfcd49c9c4e82ea7ba17ac5df078bcd380bcb8dede62890c093bc79c274. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR6V81163955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfb79871bc8e2dcb6e0210f72639529e0f6d4baf93a67900a6f1681adf24ae3. 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/FR6V81727835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2fdb91bead4f785380bca951d014a6ce958ec8a61c719b6888dd852a58cccb. 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/FR6V80587527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cf6d924a5203e2515e986d868e8f27063bdd617592a41249390ea3ba07802c. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FR6V80587530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd7e3166a8c2528b9ae2f83a06ccca0cd3a9ce06daf2d45b1029aa8f03d4fed. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR6V80587542.
Au nom des quartiers - Scratch by DJ nate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e26e54f6524054947c6024763468b9dcf637e953545c633ec3118e6213b8b3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:48:14Z), 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/FR6V80587543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29190c5ba7baed87790f7d3c89e9bcf909ac4298aba6ab5fa5956b0dcb024260. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:23:52Z), 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/FR0U91501780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b2e8f67b2c4e0da53df2b527dbdbd2b364680ecf374c4c4f066c113fab02e4. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/FR0U91501783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034088d9cebaa5ce9652c6a929a9a97ba584ef3bc3f0a0b817a239499d3e278f. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR0U91501784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba7d9c93a655f1e2fbb53d3b39fa3cba40f09593b44f105bb28685b0f362d5a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FR0U91501785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c930bcfb155b7bab46fec1a5a9885c3b2ff9f6678749fedb67583d9eb56323. 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/FR0U91501789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54065cf1d710d5f474e7047bb75ba5ed0a85e6dc2703173c27e37e628094675d. 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/FR0U91501791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cc7760cdf0efe581459dfb167ad64ac00268e321c10a9099a43b70c07660d0. 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/FR0U91501792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388cc78773ebaee98e2169d66a282cf169e967084d08969bf1bb5f6d4637b2d5. 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/FR0U91501793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf8d366d556cfce07b533111af3ea8bd2951cdfadbda3bab4f9a9e009cc8b2c. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:31:11Z), 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/FR0U91501794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67d6e203084b4542442ac49ea2852bbddf6cf4328ba61188f46d6c3d5fbbef8. 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/CACWV2111842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d9797ea834349d98eaaf5be9d4d8bc377287a688d27044aa751b0d1b35971d. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/CACWV2105400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb362debfa6ba8282d83639804cb2b0b2dd7850f6cfde1edf71aad3102a8a8420. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/CACWV2105410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9872d4bfdbbaa287d94ae966ada1e3da16fb18f80acf1bad600e9ef3ac9e366. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR2MX1300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826b2daead7a52c648b67c5f59c0e3cbb1ce8ac60d82564851e5c82eb364e56d. 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/FR2MX1300220.