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 0x362bb72bd2908e2a70e67b7faab07479e9460b1e29f2f5049b27a615bdc583cd. 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/150abe3a-3eb8-45ef-bfb2-3f364098f727.json and https://artists.proofprofile.net/proofs/artist/150abe3a-3eb8-45ef-bfb2-3f364098f727.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 0x3cb991a98ba2f140ff53eae00fa4c55d4221142219036722e16e361d5af99be9. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:39:21Z), 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/ES98D2300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e805f4cbccfc246360eae69ccd33287a8ca93543e9564d54d53a39b09cf8a7. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/ES98D2300330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e3da1531bc3d517b3cb60794a7c7c1c096f28a18d8cf639e01add80b3e001c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTVM2346479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0904b29be54af465ff5f5f717612fbb0489d18ee83066f43c4b5d377871c15dd. 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/QZTVM2346489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623c6074f1af39e1d8724469b7580eab604c48127c8d08d459178bdb006f439a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZW9K2375923.
Canto a los Dioses (Recuerda Mi Nombre) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd43e64a6c87f41ccaa5b029d814c67778170ad5e004e681d66b17c2393719a3. 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/MXC242400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8d1c37e4a3b1e1ce636a639fb707144c844354ca7ed8488d0f0d475b9a1b3f. 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/COAF42490862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc066a35d78435cd1a4d72109cd5a1ae7f63e0ef4ed7983682f9a76f05f1a79c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/COAF42490904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bceef0d176dd1a72d7c0d5e07ad35b7852325b6c1b6e4aeb817664f306139bb. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/COAF42490970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccded5b014e068af9e583c3e9ab9a8db5aded7dd75184fb0020af927c8578d6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/COAF42490861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f3c286c5d1cc87ea38af921da0854df58e6b4699629a862d526de126663a76. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/COAF42491252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039d77b5ca895f7a458612c9ab091ba0cc0b21c3cfe4eb63aa52f930ddad7e97. 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/COAF42490968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ccd1102e12e574089f482fdd908b0dfd363d4c49f4c006b1ab490718416923. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/MXC242400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2e5e0054634d8b938d10b66b0d0bab240c3ac315409abcf5c30d1814f06ced. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/MXC242400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4f829ec7869716e598995972fb8d0478531c80e8db47fd2b1a5c7281e3d659. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/MXC242500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d136bbb5f3c7d175bce5e020c8f752ab66dba43051c18226b2d792054442120. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USCGJ2523539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1807ea4a95f8f099ebbaf660ce29d66dbe29399513dfc7bee2f575d9c71d29. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USCGJ2523540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce87e425fc1599e1d4285647340578c16ef24a5a8f06394ead9e85373edcf9d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USCGJ2523541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c69608dd78040ac1a0112c2cf3805af12ef85b295337e47dac53b3594ac0fdd. 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/USCGJ2523542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba087f4aa8d38d5caa9447d4ba6bf276e44c60cfbd16672da8b74a5759255a8a. 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/USCGJ2523543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4819d355efe4ece9313ab2f472783fae980b0276d82b6dbd4e46857ac7b01a0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:59:46Z), 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/USCGJ2523544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd189e5ecaa6eed8738afa02b1024365df6df5305d8ad6230a881ceac77b808. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/USCGJ2523545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f25ac5cbbe40cd731322b8dd75bd34aee7454a74fc388445616f3fe4a30db4. 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/USCGJ2523546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda931a8354cc348672f4add2def826ae6a11910d23d27d884cc200243417ade. 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/USHM82532762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5dc1b6cca2664d6ce24619b4139180ee99f775c87275e3c21f3de889db7fcc. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USHM82532763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb261702ac4b638145e2bbc904b2685b13bd06e1776426977a3611b93d2cb5cfb. 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/MXC242500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85c089440405287f48054e9c3a719926e184dc6dfdef650ccf7d7cc3be3f108. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHM82532752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde142125f552eb0e991ec50411d527336cc5f3398db95ea5f1fb8e280d71b0a. 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/USHM82532753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453940bb453febfea0931c25a7b8935ffe12555f99bcc0908b4ba2c8497ede7c. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/USHM82532754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef5267dafa7de96b36ecb59c350ea230f6b7f582197ed179c2932a0d77303c7. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:49:49Z), 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/USHM82532756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4568b0219268ecf4a8a707e843f437658de2d8f9d0cd419fe5b37a525b6a4a0. 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/USHM82532757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ada6dfb8a312cb0986282aafaf37a195d7a9d1890f1e3c04725ac99523c3ff9. 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/USHM82532758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca398342bdbcadb34db29c3201db706a88f8b8fc1e05cb891cf03e9581f3d75d. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/MXC242500024.