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 0xf3c2d70d2ed58484c1000ffaab53f19111f2f13d46d29cd4e3051e4b59cbfde3. 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/6da3357f-cf8f-4334-864b-40b18bfc757f.json and https://artists.proofprofile.net/proofs/artist/6da3357f-cf8f-4334-864b-40b18bfc757f.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 0xaa98ae81c6a82a573de5293a962d1810e7bd27e1c783effe0311b2f039725406. 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/GBKPL2141647.
Feelings and How to Hide Them (Cynical Edition)
Feelings and How to Hide Them (Extended)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf444ba36c0a3528a3a4c4f5883e3db52eb7294f95c0b569cd8bea19482001b5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:29:44Z), 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/USA2P2150807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870f90d76909395c1730d9ca6007d14032baecc0d315e8598595405990162045. 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/GBKPL2280848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073a10c4c5dd49d6623c8f92c8154946d9561f0454223f9fb15ffd4ae60700ab. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBKPL2174025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141ddab2eac71ad7d1a9dd7c2294401cb030461950fd066f875a24e93634d479. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:31:44Z), 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/GBKPL2204816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfded27d43dde691a7984249a8cb4db244469fd519cfe71c8f381c202ed6d2140. 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/GBKPL2210620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b806c33162f58ce4ca98fb7b7087cbb41f10d9f2c58b4c1684c15b7ebce956. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTAY2273155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b749549de464b820e1fc93983e08446241d0435d2076266c97ec89bfe23d0ba. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/UKZGC2302806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b749549de464b820e1fc93983e08446241d0435d2076266c97ec89bfe23d0ba. 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/UKZGC2302806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331c08f821acc112d08a45ba824f53614d3079daaee133921bb393c99b2decca. 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/UKZGC2310063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38bfdf68d18714e1292badc7c2c02eded974ca130156cf41b522bc94103c641. 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/QM6P42311828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b62fc4d14eae72d948a5eaa7b2882c194dfd9451439d7fbee55493e6633ad7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/UKZGC2307158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4285886b03e7194f0dd04826edd30e017434f158caa0c3156cf5d5b351084a. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/UKZGC2500251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a196c0c7072b93dcbdd6c845afb7a232ea5c2184a73a14c4130af8c23497e11. 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/UKZGC2500646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23e4c45de3202c4aee7388f63adf1eadc3428544f2c4e0fccd8adb8ff56aca0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/UKZGC2501425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4285886b03e7194f0dd04826edd30e017434f158caa0c3156cf5d5b351084a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/UKZGC2500251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a196c0c7072b93dcbdd6c845afb7a232ea5c2184a73a14c4130af8c23497e11. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/UKZGC2500646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa35ce45db369830d90c2009b695198339296c6224e60a752b000cab27ee1d8. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:09:24Z), 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/UKZGC2502843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23e4c45de3202c4aee7388f63adf1eadc3428544f2c4e0fccd8adb8ff56aca0. 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/UKZGC2501425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0a6cbad35fd3de574f0279bacd3a2519f0872706433e5d5189087fd7f6b35c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:42:12Z), 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/UKZGC2502193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4285886b03e7194f0dd04826edd30e017434f158caa0c3156cf5d5b351084a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/UKZGC2500251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a196c0c7072b93dcbdd6c845afb7a232ea5c2184a73a14c4130af8c23497e11. 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/UKZGC2500646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23e4c45de3202c4aee7388f63adf1eadc3428544f2c4e0fccd8adb8ff56aca0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/UKZGC2501425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0a6cbad35fd3de574f0279bacd3a2519f0872706433e5d5189087fd7f6b35c. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/UKZGC2502193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4654fe9fc0352312926ccf64df06631786842b628863f192c3153706a3b7964. 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/UKZGC2503565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d831b3f0bf00a9ef7287cea0b0749633744419ff8233cb84630bd51d4a7aa03. 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/SE5752325908.