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 0x299e8233058da60d30035846e0c0be7f8f5f5118c7f4d9fc28fd1b9c9929bbe2. 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/1a435243-e763-4cc2-ac39-4b3347034f17.json and https://artists.proofprofile.net/proofs/artist/1a435243-e763-4cc2-ac39-4b3347034f17.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 0x7dbf3b900efeced1a2d6eef1695a03dfe3b4d60276c7eb3a66187cd1146a813d. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QM4TX2261358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f9b01589b4347c4acb38254179ea3e27270e0cd1721ce28d5f514bfe5ee0ea. 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/QM4TX2261361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18b1900534ed19929345699ad04d04422f43e3955d2c0f2717b78faebf7466d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM4TX2479239.
Lo Mejor De Nelson Y Sus Estrellas, Vol. 1 (Edicion Especial)
El Ritmo De Alla!, Vol. II (Edicion Especial)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb60d6896c94e0d05437d1a4439778b28077935260edeb0b6a2ee5f6d42e9aa. 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/US2BR9704652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a63109f89fe3adb179500ebfa965466b782aef3883a89e55f4e69c25d4c1aa. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:42:07Z), 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/US2BR9704653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8f3afe8e0aeb8473645ce38bf2df26d9db608479e35357ff5351b97ff1e697. 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/US2BR9704654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a48dde6629e44967088465a27f0c4cf68d8268a13d75a9e2ade56264802661. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/US2BR9704658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be3bedaabdb35854a9c16d2a7f4b2271bfb8df8bcd635cf4986cbbd633786fa. 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/US2BR9704661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c2ef77bf9eb9593b4ba54ee2a31a34ffefb718fcde38f4b1a45763c41a5594. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US2BR9705299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898fcd5f27d25e9c59eb05750e7f9b49c70f6f75b6133e64c42059486c13ebb0. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/US2BR9705301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a1e323902eea0a428012fda252c3d55cd2814d2df21b5acd75fa5b2d379fdc. 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/US2BR9705305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710e39c7395c64a56787510867d6229503b9006cfad5e5d3d562f4ea1180332e. 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/US2BR9705306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0630224257013fa99db529319037d0839d115e5f5d9ca5f84aec29bed145719. 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/US2BR9705307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f05fdb1ff01a11a660b4310fb24580aa4358dddf06cf906c76897cee5a0b54. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QMFME2202058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e0c8d52533acd6d175e7fd5cee9c266e914803375a1381fb533b7704f8541d. 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/QMDA72230327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc11c3d81c3f87439ecafe016ca387c40df4db6c5cec5d49c749314dd15c27d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:06:07Z), 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/QMDA72230336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56e5c01de3849e0a9c42237402e23c9826c73ab458be879ea6e868a085dca4b. 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/QMFME2202174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ee7637e576821749f34f1e1066e9f752ebd31c4eb2917d78d97b80c2a83b9a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:09:23Z), 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/QMFME2207873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550fc5f3744936690b0e366ea2cfdb0fdd65ab125d85f17d2f8f047c5db322e0. 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/TCAFA2061236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fbab07aa3e5a12769d27b0a3ba57f08f3eafb2da13855bac79e7f3c820804c. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:55:10Z), 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/TCAFA2061245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32299a4af8e2a2f26f75c1c10b30d17602699adcbfa246c0ea9c8a586e33e0df. 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/TCAFA2061254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf631a4b136454d40cff78357e7e4797e6af65bd6e9b211d07daea083d44d253a. 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/TCAFA2061271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7c2b9ce79e2860973e55c103c618b1e9b1f57400354d8ccb1e6f6208d66c1c. 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/TCAFA2061314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2c191017a420e32de5834eea2a69fb2313c222a2f3e7f0dc45bfd2172e6569. 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/TCAFA2061327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3908fc3dc22c48831fe37aaa76cefeb21de69ebc50960f94d93d385761cf27a. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/TCAFA2061333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192874de2dae111de2b8211d1c05f10e5b331ec15cee9b22ff6f7af3ed1c4f77. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:59:32Z), 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/TCAFA2061351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c50231da351cf61683f08d3c7f1a1abece79b738aae2261f76f1ad2dc022b4. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:31:55Z), 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/TCAFA2061374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e0c5b427d3bf1b7bc79422032c64b21e834b2c39ba38540d29a37ba300165b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:10:47Z), 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/TCAFA2061375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84362f8f03c190304a2acc12e53a79bf951b47ac6d5e830fc5203ab3da320bfa. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCAFA2061381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358e066f68acfcd4edb09bba35f580a5e87660dfd0aa0fa59e47d433568c4ff6. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:31:38Z), 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/TCAFA2061382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1521e81d504671d0261fe7cee6bf0305b4fabd084d20a52849d37387b41b044. 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/TCAFA2061389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809081fc44bfe4242d30c9a43354ceef466131f8d8d9b8ca65c432f401a7b2f9. 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/QZES92110960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af0784a4fd5188f83c423d92d6be78f61d313a056409d7f8fb9d1daa1f67ca1. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZES72199739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd3b9a5ab9fc8fa71fe1418b0bd1fa01307ff4a24bae8e4f543c2e75be62f8a. 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/QZES72199744.