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 0x9a681f18276079deea8c306e9bbafd92dfd4100bc00c359b822d0b59b336a7fa. 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/2bedd5f9-92c4-475b-982b-06eee21c6577.json and https://artists.proofprofile.net/proofs/artist/2bedd5f9-92c4-475b-982b-06eee21c6577.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 0x7e59dfa9f1948d344747419ced9f4b26e7b90cd71ab5dfacd14737003e75bad6. 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/QZNWQ2132023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebc9e293a9b0fc2efbd7ae9c7287a1b2a6e1d91a9c2085c829365ad12d11058. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/QZNWQ2132008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3151a8852bb69c9426cbfe1f79021265d6b5779206cb77cd6e15d49ee0bb9995. 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/QZNWQ2132006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3375c310b0e3c9a1a07938ca2ddee91deb4ef8342cb8006be97a65bca00c9aac. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZNWQ2132029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6bab927beab5b063c9b6304242f65859ec15e416b2af436a5746c5df200e84. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:09:56Z), 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/QZNWQ2132032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9673b135e075a6a1d097787faf7a5f7466316578826e5b96d4ae1f1b6c8f6ac. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNWQ2132009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cf3f5658e51074b4c0090db3e615bef75b1c4f6546b2dc5659bc7c1ae9fe82. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:21:43Z), 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/QZNWQ2132014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce1a9080fbb0fa1c4f99cca00ce1e048d758b16209c7f1aa4d8b3dba1dd940c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWQ2132015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa758cf60e68ec304982fa12dfea7faeaba0b75bc09368b92129694748c4ff0ba. 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/QZNWQ2132010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6431d4e662725f846c525d1a1b50c9985ada8aaf27bcf88a3c5bbe90908966ef. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:24:05Z), 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/QZNWQ2132011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e5613f60840b3db5d80fb6898b1f9b88c9f55f3307eee8d15733a79e7d004a. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZNWQ2132012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae614d172b29cac9130280ed12ce13704d6c1dbaa53e0830c85bfffb21bd76d7. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZNWQ2132013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d60b5794016ad5f7c5089c23187b55b69d57cbf38c40b43eef15883415ad8e. 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/QZNWQ2132017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17b1a303ba1a2ff39a519391e09e9d1efbc0208769939f5ff3534f1eb8d2603. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWQ2132030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d1ff59fabb7604dbfddb1bd03bfb37a893a03b53b8ddd561465aff7582f2e3. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZNWQ2132022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3917f5fcd3b22ac064b95d9d8489f9735a93ee0a93da3375bf43f55442e3abe2. 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/QZNWQ2132024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9108723e3f6791355c63ae7d74cbcbb7654274bd89ae59dcaa6a2e4d2f894b0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZNWQ2166310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a847040f2c2f7be94c60413fd0587d6311b25ed63c8ff5c767bd35d03d53fd. 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/QZNWQ2166311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d005c63a0baff8ef0ea339e0b651cc017a1db5d3e77f061a18e0d869fa75d5. 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/QZNWQ2132018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11873083555212942e56b28c4ed74ee621cd0aa9b6964c09fc479b3f84410a4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWQ2132019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a7a8149aa184190ddafb1dac5c0f9ebe613dd7faeb1bed63946eb159d3da70. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNWQ2132020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878bb4f52df3018087601a6124a2fcd3f220e07d5915da8f0aeec334c12f4b7b. 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/QZNWQ2132026.
Agudas y esdrújulas que no son tan graves
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a520dc7e02baae055c4d1d25330e197509b0d2d73b2df6ff5b8c93bbd3b7e2. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZNWQ2132027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f067bb7004350569fe669941ee19cd45c034723beb769a6d35355c70b00a31. 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/QZNWQ2132031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6a05fa882635900b60f0ea13c2f5fe411227277d398061fe4a3ac8f1f88c7b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWQ2132021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed27ed4fc3b0ebe854bb76d571e7ecb48773e0099871d34d5a6d86f7d1320b99. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWQ2132033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfc61fdb2877df3a2930753573a4ce47a8ed032574ba343f4829c9552d09a53. 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/QZNWQ2132007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0d66a808bfd374f3d7c931679db62fc88ae3699854fc7232d32393c14a9e1b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:54:25Z), 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/QZNWQ2132016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6736379f760330747a2445e6855960bb30fca855b577bae77ce0ad8a6934b58. 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/QZNWS2126885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89abe073b7321e8e51d059d4db8e1da7451f7e12fc2e33c012c9f992a3785824. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNWU2155246.