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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5e76593302b409285cce1625c2b4cc2b29d676438c186695eaa61fab9a63f5. 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/1539fd39-53e8-47fa-9e1a-bf219fdb0912.json and https://artists.proofprofile.net/proofs/artist/1539fd39-53e8-47fa-9e1a-bf219fdb0912.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071df19901c53c60213437661c43c1da332fa43b835e0519fa0a52f1f08456f9. 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/MXUM70808606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a0643514a770c2f7122730c60498b5ce66074b77b3ec1d269e5e05f5d746fc. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/MXUM70808604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc7c8af102faf38e734d001c511af67ef481f431be46ae7dadc2126486a2e56. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/MXUM70808605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f20b37c0bac7c4344f8fbf9a068e6298afb046da1ecbe4ab0dc1a53f0c3bc33. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/MXUM70808609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0963905f0bc80eaf8de073e18e24df6914c210fcaf960067021e675996fd759. 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/USUG10910931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf602e5830607073f15fabde8c725ec5d1a9d23db5fe322e5c2fb2051de6d03f4. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USUG10910937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a9b4cc67a82777f37c7055217f2cba1e18560c4a9366600ae6ce1d1cf661f4. 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/USUG10910934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cae98205d60dd86356b4a604106fd1c53398a9f3d8cd6c35b4a08dd96c7125. 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/USUG10900521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0789057b1573583995ca60fe3b56226e478ec8edda0c0045f24dcf79a48950c3. 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/USUG10900519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf509d938e43846386d659558ba7fcadcc4c80e0c07cd83fcec32674968274969. 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/USUG10900782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6b35e58a5b367a4eff353fd46751cd89b925c99100e972c1825fa0c8ff6a27. 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/USUG10900777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6ff3e3193a0aaedc952fd3645ee7d136d5ea4fed2b45ee0d92e761ecb30f64. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/US9CY1800633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88241d7421b0cce03f1bf36ce0f85e4c667be3a5a2e1763fce5e19f8d53898b5. 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/US9CY1800637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b83938ab0aba44100087cc9255f0302f3dd98e4240af3dbbd322b6f10e851b3. 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/US9CY1800640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e327da10e692513ee52ebf1828d1a9734bf8a53fd864685c579a33a1f6b628. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/US9CY1800641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d326e6200d0cf4844af9430b450ec09bfb4d042d193bb097afdbb3835cc7138. 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/FR59R2186864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1375614435413cc8190b991d7cd230d703bba7ffdc8b0aff125fe31ace4ecbdd. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FR59R2164038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58d6c6905f1c487b596b77a7bdaaf140b39c0388d517f7ff048a29f28615151. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/MXUM70808608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc26956357eefac9018c29f02a55d23857d4cd01b41d009d2ed4af8f2ce54d1. 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/MXUM70808607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdf1791e0506f8589924e9500e7fe137ff54e0c3a942725db2b3a0c361e169f. 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/FRX872124660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab64c9665a4c92032f9472f9b5926aff55b9e449f8ea6609faa369dc51de0e6. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FRX872144970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1e93777990bf72abd6a03a9681c6887e7cc0f9b29f8908da5de33be89c438c. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FRX872144976.
Popurrí De Cumbias: Sunguirungui / Las Animas Del Rio / Ordeñando La Vaca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee272132aa428969b3641cd7ff386ca018b12331e3f3d65723f08e6e80c5e73. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/FR96X2486871.
El Paso Del Loco (La Energía Musical De La Costa De Nayarit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1aa7850ce97069476498f03666ed48fc8b531e28b33adf690ad6e401aa6bb39. 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/DGA0Q2453656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4e2ee781d164a2d18e1b09872326b4c3eb68770fa2dd379a23a393affac7f8. 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/DGA0Q2453657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc85cbdc53489cb32bc41667f2ec26c5dd1cf51429b6892a893410d971fafd2. 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/DGA0Q2453658.
Fiesta Navidad Con Hechizeros Band "Merry Christmas"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffb46e2b2f085c6ffbf88449fe8aaef347d506fd3d5f26788a3ebd23f94adfb. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DGA0S2470468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a349d844b4c1fde57f3609a5830b209533247eab375d5cb4be8eda18e28c9bf. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/DGA0S2487114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc77a0e69d70b1252f6f64240b7f50e16b7aa53e9e7542fc4335e49e5b8284e. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/FRX282532564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea244ae32155245a46bd33abced0c0810d5b650fd2c2ada6c7057b50dcec2e2. 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/FRX282532565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db335f9aa989779d1ed50d6385600e69bf1c301e5f3d3b51f7c518bccaaa937. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/FRX282532566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7dbbb831b9ba7020469770cc7ba3aa17dfbb18dd6a5fd22fa7cc2738e29eb3. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/FRX282532567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeec9eb0fea5fbf3aac69541a69cd74080a2cba44fe083bf1e21f7d86034d433. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRX282532568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781a4be2cf4ea4809ef92ccbf5e19fcc60144e82e41e8c7c3fd47d90f358c931. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/FRX282532569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f7c6ebfd734d412cbeb28e80907f487cd1496a6d5c340df856627b330ae4cd. 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/FRX282532570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b5368cbd453c4d6fc0cd0f56bde4c1a9e5aef0a1dc030fa9aac6a1dc7a0c9f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/FRX282532571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e660fb4b1349c19c0f177ee12a3ddfd768c694604baf6430bc592dc38e61dd. 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/FRX282532572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abbf867b7d9141543bf039713c79b4ed7d8449fbc631946afbbd2e0f2cd3ce9. 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/FRX282532573.
Las Que No Pueden Faltar En Una Fiesta Mexicana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75ce7865ea64e7e5cd4ceeaf6a97fa46240374c86db2d05dc1fe9e9aa92b9ce. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/MXUM70808590.