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 0x06dc174fae3262a9ef514fb5c221890696900a54ae6e0832cb7911938d8e2eb7. 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/5c7c6ad0-0839-4b21-9413-a3bbb2e62f54.json and https://artists.proofprofile.net/proofs/artist/5c7c6ad0-0839-4b21-9413-a3bbb2e62f54.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 0x5624370f88254483558527d41b5ce5e4e574ef077f3fb037f2e4510cae5fca65. 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/US9CY1001055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbe4078a64f9697a074bb828a85b55cd6a838d49b23959b883d7f7037f48d41. 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/US9CY1001060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4459508d898efc661cc0ae68387875853c9c4f8f2380e67e9453bef90be2a9a1. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:18Z), 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/TCABK1236936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5c29d6925cf29c4072941a3c0ef0fc7991681c077dab1ab32217094e188b6c. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCABK1236937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249c85b08d1b0c4ba3c7de340c8ea001546bde1be26c42fdc6971b1cdeb35187. 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/TCABK1236940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa1774819d3c74d4f3b04e3f4237df22fec9afa81af8de1b94ae936fbf7cc03. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCABK1236942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e366b751980500125c4729737172dd70bab60ee400deb13e81bc90490302d0. 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/TCABK1236945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe193214366675152475a5689757fc85dc4e3a970b20828f52ba3074398928e4. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/US39K1632002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a950a2763c6bb3ef1d790e1e86ed5046c1baa4c158c2824d51a05a20fc3311b. 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/US39K1632003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2b070a974d24a83ad02efad0a8c388e775246db2c70fad33cdec18148e7904. 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/US39K1632008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a873c8b0abcb8c78f24384c10247aac1279556719277aad8ff5cf9ef0c5862. 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/US39K1632012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f59a8c47226499f0d6e0afb17d9ca5e63619828665e765a4aad98542affe844. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/US39K1630902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070ff4fd3801415b3ab7398846570b09d2183e37a74250719f0d157762aacc3c. 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/US39K1630904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec97afd5095555370f3774d812c5ae4c4044f083cec9ae2422f30e343e08373. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:06:21Z), 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/US39K1630905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76545caa81a25daadada0b81409d9545179755e938f908af20601bb4b329fa1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US39K1630907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd2d48d55890979530bb7a1d10a89db95f8b9f4760431ee2b6ae408169b959f. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/US39K1630910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7e3243f287151de994f8eeb65f54f8566f2e9f80adfbe89533c779923ac812. 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/US39K1630912.
Levemente (En Vivo Desde Jerez, Zacatecas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb57b8a5910391d9253750ed2da21e490e2a41f9e5aa53ae27403bafe28df62. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAEK1919567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddbc5a949006ecd1dcaabbc98d8fb0cf0260fd7e1d91a561919d2f040216a9b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/TCAEK1919578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28168c66d7ca12c3a1fcf013aa6335bf0855c51ae0c082b50117caebed9a4f1b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAEK1919587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fa6166a03e61f68a696cd506c40c8bb30a61a28e7f67972cbdac2abd4baaa5. 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/TCAEW2076124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f12bac3d9501918d8e414e80d744cb1819683efbce1c80e29049924d4a7f78. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAEW2076140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c5b1b7d48f3271abb469034bbb3e9a3dd9592c862b21e313ea7dc7a5b57c09. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:38:04Z), 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/TCAEW2076146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb81f79f6d326fa91cd0e7b92460e51ae29b5f778488cbe02b9b17b7fecbc8f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAEW2076075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8911acfab4963943888a046f3921d13394dcd9044f7607b9e238cca1dbc6fa0c. 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/TCAEW2076123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fa6166a03e61f68a696cd506c40c8bb30a61a28e7f67972cbdac2abd4baaa5. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCAEW2076124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adee7414f88f3f714086b951a520753893e5448820215f50f020f49a1adb597. 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/TCAEW2076126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9472a8ee945e425159a306255e71cd5ec0559d163d48a99ffc4d249c51ff7c2a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAEW2076127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f12bac3d9501918d8e414e80d744cb1819683efbce1c80e29049924d4a7f78. 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/TCAEW2076140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e51c540eea6dc7cb98b7e6659b40b89318ee5dd2fa76f7b8cd717bd1c97f6f. 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/TCAEW2076142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3df878085cee71903155e4f5e4860cd9138cb0cb2ff1f4051e28a914b0a0469. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAEW2076143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1ccc5df3b10bf1eb370da145fd1b0c2e9a8125d2541377f9e71ce10642e2c6. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:00:24Z), 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/TCAEW2076145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c5b1b7d48f3271abb469034bbb3e9a3dd9592c862b21e313ea7dc7a5b57c09. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAEW2076146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29fe6fd9b3052e3914215eaa9503792a35ade0ece4d704d5d9cba06ce7009ef. 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/TCAEW2076148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fdb5176eb3e2b44a825a1bc0474e7bc2e1924e22d39b8ba0752a716afb6281. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:52:00Z), 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/QZDQH2398789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf83366bb39c8ddb8753029348ea6a12ef3144fbe57d1ec0c6e8e4df14af2b67. 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/QZDQH2398794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58dc0ff51f51487d957044b03c9cfe313c1f08fc5718e9eb5678114048feec0b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDQH2398796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bddb2f87e07b8792117ef874d2aa9ba7c0d1cb0e5787cd6efb83763c359d138. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:04:35Z), 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/QZDQH2398799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4558c9bd4af741fe43e7a5c58750ca86d69362ae3e38b304c03379e5b6873a6a. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:03:21Z), 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/QZDQH2398800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b238ab6aee433a716397a8140fa7c9a3a02b07907c97313373b644f59b158a. 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/QZDQH2398801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622652ea55f77e1f54636e80745006dbfe2e58c986f44a189e23cf2ccbd3ca1c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZDQH2398802.