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 0xfd2d4148e3aaeae5c1c2a353691846b2e0d1f8f10346b94ea69e38f4fce5547d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c8819f8-bc82-487f-92b6-ea413ecc1c29.json and https://artists.proofprofile.net/proofs/artist/7c8819f8-bc82-487f-92b6-ea413ecc1c29.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 0xc43673c4c9224139903ad319b7a58e46752ade0f1f90be8bc6553a25c1392f1e. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBUEB1400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d224cb927968f87da1dac2fd54a37649ad82e3bd886c526c984c93d8c3e949. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:09:28Z), 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/GBUEB1400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce6890ff0f826f0343cd2041f9a0249d481c2d035c9ae8ddf352dddb2a7ee7c. 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/GBUEB1400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff355047ad54c10d91501dfba445d862bc78b8c0934446d651a3d17cd7f1f4d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:29:45Z), 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/GBUEB1400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569812cd5d34dec30ae15bc82b88f92d6183fa6ba4f9743c9c105d1c7075b4b9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBUEB1400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd10c021b178a920b45a53f8a4676b79913d2b50db17862eb14c62e92831f018. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBUEB1400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc415c17fde2500d0ea8fa61c4a71cc425f1e4161c79e63503665c78f9edd1a0. 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/GBUEB1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab28b0abdab5dd8e30700b7942860b3b4782a551364a97be6cc86d84ea53ddcf. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/GBUEB1700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242d4f3333c1429a758e57f7526b2ac8b2878facaf011c401e36930ed02eb037. 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/GBUEB1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27c0b2d4ecbd504cb355dfa6d2f6bca69eb794d96de2b83c3cd6eedc852cb46. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/GBUEB1800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7805dbf4fff245f7a00fbb71f9bebae67e84bd4667c77c4ee7c52a67c964d927. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/GBUEB1800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b938a57a418881dba8f6fbfa9a3f47ba087d7ce4ea5dbe6be567f0b263b06c. 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/GBUEB1800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627502c3fb2cc073c959795f0a25d71641b32d2103882ad4839bd8b4a420b6fa. 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/GBUEB1800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaef2dc933b1b28b041e893ce934b1f8cc80efc6f6faad02cfa1d7cbb56eea68. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBUEB1800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dc9995c271c01f7961990f7256a2de7a40157d717ba8839e5245cbdea5d1a2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBUEB2300007.
Será Que No Me Amas (Blame it on the Boogie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792888669e1ccdcaefcd3ec05df99ff1c86c26e7adb24a8e65014fffb63c3325. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBUEB2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40349a3bdfea0d705c9e1aee40c428aa714a53086de04cef3a804fb4aa4a858. 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/GBUEB2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c725a152f2a04b7f8a8ae676bba12a8a576862352b8a5b7cd73847576fe058e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBUEB2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bd356c960b6727f5912529a21d396f9becd2b04d9bffaedf5c0b22fe8117de. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:08:57Z), 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/GBUEB2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac549457849bff474550dc756d3f7760aa41facd077420d6e436a9335e3ae67. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/GBUEB2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e0f00eb4d0f7fd2655616a15170ddf1ea9ae43cd8e02cc1c0ff80aa77b348e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBUEB2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d47c311733b3715ffd99aae1daf1f1de9c46903998bdda1591ae2aeaee7ff5. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:51:06Z), 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/GBUEB2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a30cb82c628f08c2bc1a0527eef89b45f5ecaced92f3b7dea7e717c7b78d05. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBUEB2400002.