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 0xd0625a690cae528db0868bde619d25e8e47b53f4651a488c7e3c684ec75b9bbf. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61e4b1cc-559d-4f01-a3ed-cababe2f5718.json and https://artists.proofprofile.net/proofs/artist/61e4b1cc-559d-4f01-a3ed-cababe2f5718.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 0x303228a5361912397fcfa8ae77e4ab273cbb68e35ca9f4620643c75b68d3c4c4. 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/DEU672200481.
Golden Linings - Omer Tayar & Omer Bar Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5ee56167ad986c35d12bf520af07a8d7da39f937d61c88f422b8b9cf003941. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEU672200482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6d306ae409b97849dbb5e69b34f45fac8f234214c34ae470173389ffeb3c63. 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/QM7282417565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68167ea04e65ed0c0e118ab4a9c443ce1a4a72eb5e01b5c24e2865c16d772ffc. 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/QM7282414564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcf72d80b29655067c3db7ffba70ca281e73ebe065d2f0decf6da4ef4320493. 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/QM6MZ2488509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9187ea2129e4af26c615f1f9be2da7bbadb5db8e7ba6e914dfd690eb63fec36. 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/QM6MZ2488510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f022ff5ff5663e2119a9c92e9d0437d6b99ec1ec105dd3b36eb4d35b9c8f43. 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/FXR592300353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0cfbcc1a67e062eebb40b0c6edf7664469f33fc32994b4a8c00e06c2926d29. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UKSP42200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b72bf846cd746938fff0fcf4fdebc6052e505a6631342dc03c6ec9753388b7. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/AUXN22303883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6e64ee4fa82840bce79312a66430b4a38baca224ea8c4f3e6f753af6ac7d78. 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/AUXN22303885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc419f2584dd8fdc5db9f5c099aa8da83e812ab5408f1230c78f326b5026bd75. 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/AUXN22303886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7695dee406f230c6440f3791a2286a468e817bf8156f0d12d7382232c38958cb. 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/AUXN22303887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c4550133c78183a9211597a6cfb72ab47fcb6f5c19e3ba2276a316dab8f6d7. 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/AUXN22303889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3f186fd1a5897271c37d8b7ee1919a01213aa8ed2d25e927ab694614284ca0. 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/DEK601964070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9457bd7a4fe3056ade6e12486d07817d4a378803440f658597b5a11b6c654d59. 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/AUXN22303890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbd9efa0b3b72d21eb5c51937ebae6bf866a5bfceaf5580f0b0e77d3ebac2b4. 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/AUXN22303891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e6f585042d027483fefbbacf7b1fc6c725674572c286eb5e43cf7533468470. 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/AUXN22303893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5a3bb6e9c8e4ff48201e4f2b552f338c2632add8f5653718aff6968d3ae79c. 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/QM4TW2322537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9207ff2d8f1e32dd3ac9d30ef137d105e6c6886e56bcd32d60151f645b70122e. 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/QM4TW2322539.
Becoming Cyclonic (Tim Green Edit) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7de42513b894faba24362f2ce5b8a25e1ad97b2537906e079640bfe926f4653. 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/AUXN22303896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b17a6553f86161055ae962deb9ab7bb646819c07cb1865cb1b007506f98114d. 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/AUXN22293420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6de51a142cf46b092c1da5044ed79f8c649870af5c031e4794b498fc2c235d. 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/AUXN22303898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54684babee3d40a248bc5b183524584322531d35a97830f48748ad7dfc5c564. 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/QM4TW2322520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf9f7bf66873d20a5ca25557ad2b12b8aadbb2b093732811ac9c426a0b4a224. 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/AUXN22301884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4150257e43a41bf45573ed1eec9f30411af1d5500a53a838ace4228bb911402. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/AUXN22301953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c90622b65adb622eb7c2f00dd18ec90dfec3cd7bcedfc6f0eae6b39f7d57c3. 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/AUXN22303906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7022a2505f350111c47780ea124eede7effc79f481afcaa61f7d7f82c4d16fad. 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/AUXN22303907.
Chestnut Heartsprite (Tim Green Edit) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb35cc162c497942a4991142f51d0d39e0c5f850fc896c83545f1d2877c57950. 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/AUXN22303909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54684babee3d40a248bc5b183524584322531d35a97830f48748ad7dfc5c564. 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/QM4TW2322520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5a3bb6e9c8e4ff48201e4f2b552f338c2632add8f5653718aff6968d3ae79c. 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/QM4TW2322537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9207ff2d8f1e32dd3ac9d30ef137d105e6c6886e56bcd32d60151f645b70122e. 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/QM4TW2322539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025547b1c1176db0ccb1ce5a32a66c7864535c8c31f36c61f6ff50567e2302fa. 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/QMDA62332136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221bd02db2597f157cd9e18c960ff6da0f44b0a64be1a6c25e7cd3cbff32247a. 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/UKSP42200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e50ee41d0af8154d8700b9b81c9a0257248decf77a3241cfa17f5ac17ffe95. 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/GBRKQ2379256.