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 0xbba50bd2f6f0bd6dc32cf68ce1deb5137082a1d4997de22ca24fe71e25a6ad98. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc8c2fd7-935d-4695-a661-c2e922476f22.json and https://artists.proofprofile.net/proofs/artist/dc8c2fd7-935d-4695-a661-c2e922476f22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Groove U - Alessandro Crimi Deep Remix
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 0x01497b0a0f6706a1fc38ac832618c7bd80d2c292c9076dd699aa15355c1740c8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEU231202177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60d7583c55f12e5753fb7f94dda08d810e1da9d4dd84b9e3f06eec1836cdd2c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA041002552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b17a2697c100bb062aedd311222a0a554069663421ffe5402781f6c96034eb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCADN1837072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cfbf9c8ea48def74effcab961d7f534584b51831cd4f453acec43c95c69f53. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEY470916612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ab0ce02eee6ae911e8d9fb39695d61b22da6a5b7db3a4a78ebe4b09153cbae. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEY470916617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac6f5db79de3ce58f5ce408500b04ca16a4ddd6840b34ccbc0be4ef71b874b0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEY470916618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241c8d9e3eb4fd91f454374abae4fcea5c7a78dffa7fd9ef7e7e12bddcb34609. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB7VF1600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e44bea0c87bf0af65c3906513a2f9606928d87d2b6bc55de775a6ff27733f5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEZ651027943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca623c2794ca274c921dbdcb843d9dff46118d26f536332a33678c5a2a83176. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBWFX1300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48df7a860de16711014dcc9dbeac9ac52e5b83cc714eb6408696a5f296a171f. 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/GBWFX1300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358f24132ae2455efbec4e59a88f4c8f40ec9b05f897971478aa364e4120b098. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBWFX1300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c22d3c7bea8b0e6fcff9a5f8f575af5886e995d9b81643ac6a77e43e2c6e15. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBWFX1300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467ad36cff114f232c2c015515c70e2765282689cc4a49c48a58d2130abcb592. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEG931791770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c09d1066f2f9f47daeebe8d35f1d6480219372978c5d982728e224270f930c1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEG931791771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc999d2440bc9485755b6fd83bf4296fbee3a90fcda96442138118bca0a1208e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEG931791775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3250cdd81f52487d033e82a295ac06751aed8254d80e501516e20e86d0408e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEG931791776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a531066a1be3333b2051087bf6dd5eef6882b07386a77c69bd35017f52ebf9e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEG931791777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8ce8efb579e3335e51c7fcdcd4bf6104e4db7a0f2114c0013841b61b5ae3ba. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEG931791778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b21168477ffebbf4813103f4c3a6113ea58b4017242a6f936d226638ae847d5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEG931791782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3ef7e7ff2d90a693adde20806cfdc7ecc67f7c03fcbb16ebbd11d9f2b99992. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/DEG931791783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689ea762161a6f73fa665e7006cfdaa440b5fc022a3cbec77a4ef360924b9238. 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/DEG931791784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddc6ca7a01cf58b763ce50b9362cb2e7c79b3cd11811c4abc2dcdf3516be2af. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:18:56Z), 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/DEG931791786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dedfa926eec862cc0697f3897c029ac8051181d9c3f7c6448aa857275d803ad. 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/DEG931791787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118bb4c0a309a9135b69d6e480ac2134b3e30456064e21e86a89c98b1f7d852f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEG931791788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2d5f7e8ecd6d39fc0273778ec5bc40d76ea073135092e481e179db0bd8200f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEG931791789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929022ea8181663fc77c2b35ce2faf72ee108198cda0ac5f613c85b48176af90. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEG931791791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1238a53f71907c5e6ec3ff8a4b0bb107f2ee8c9fc2b4b4b442aad6a27930b95f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEG931791792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a330271b0736c575d133e032f2353352a1148f31d9ce69446c05682f2afa80d. 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/DEG931791793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91375deedec3f87b82589c712d647845199b8b2337fb0864d3561041c888ee1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEG931791794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ee3c08934dff74cc53443bfc1f306554d6889f694c34afb86d5d087318caca. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEY470907771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dfe1fcd00f3a77c5aa247cd7230758e29dfff59dd6991ac26ef66ccd7acf5c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEY470907772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01152a393f5f4072042c66c3bfd2885736c22ef2dfad05a4268e8cd3ce0738b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:03:00Z), 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/DEY470907769.
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