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 0xa9ea70dd6c98a12c1352f68441a1207618923822da26cf4d645b836e9ea0d453. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca601689-cc2b-4295-ad0e-758b538623e2.json and https://artists.proofprofile.net/proofs/artist/ca601689-cc2b-4295-ad0e-758b538623e2.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 0xde8a29aa312c1f7cb521f1238392640d50d6bd51676b65539761b083e17697c3. 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/DEQ121423200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd429ea0133ebec4e38b17cf90393f06d4e48a416881664345dabf84e90ab346. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:15:51Z), 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/DEQ121423201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6776ac4070c15036d09df2f7c0036bf093c90b3c349466015d140ea911a8663e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEQ121423202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90068aa5ad5af35e3908eecab20d0baf8a521d91103e53a8b22218cfe204153. 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/DEQ121423203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32d53e98d260424e0a70ac1deaf6f255fb9bf6e0101bf88ad5b44a86264785f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:01:34Z), 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/DEQ121423204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623b18bfd9b5f99386fd79bca393558911b821b6f1985140585755ee8490597d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:27:53Z), 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/DEQ121423207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb093338e2f66d5adadd5870acc108d389b057990705bb36e102003df75fa14. 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/DEQ121423208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209a6dd64f0679d24a9e10ce9869d992056281df155848690504fb469f4d465f. 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/DEQ121423212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2dd3f237c209db4bb7ba68b838a8fe72dc04da3903a7016bb77d039e0f296e. 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/DEQ121423215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a45a7112a90cc26fe9e589211c4d6e6b6478ed0aa2f2a166e7705dd5fd03e42. 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/DEQ121423310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc367a035993e5c04a2b7551f1e0ad35eca5212f487139a92501e4a02d32059cd. 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/DEQ121423312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3220d5ee35074dd7a23b8b7db0c662fede7ec7df7b7afc689152d20ffa6605c9. 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/DEQ121430246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc077c9574a5fc0fd42e713cd6a9b2a66741d903b33baacf38199f7cb4ff7fe8f. 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/DEQ121638830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf134f0de79e6f33415e89727bd9cd7fd2ea43091301399e40a70b5f636647714. 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/DEQ121638867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc59ffee66bceee190efa07078cf47d6e37414a0f7a1acc774879e8c6c5f9bd8. 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/DEQ021800863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78578f0d513215d0315db3d9ff550496306aad84a7197f1162d79f4dc815eed6. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DECE71900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877eb8f72271c4486c40f86e58fa4efe4c4bedbcd658c2c9966748a8b190ff6e. 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/DECE71900098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b640818c7b7b4e32a563049051fef49debc0f273aacd2e7f6f0b4be8e3c9f05. 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/DECE71900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877eb8f72271c4486c40f86e58fa4efe4c4bedbcd658c2c9966748a8b190ff6e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DECE71900098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0bc7a203489a2d21697e6ca5ab573a9c7a9214175438a4fea5be62c24d2888. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/DECE71900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5f17aba56cca363d48c8b0c86d8e7e13d79f5ff159852ef6eda787d73fe626. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:10:59Z), 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/DECE71900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122ca80631935fff6234d0e5045d6313eec897b1f7b643fa1b995e3ebb26065f. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:49:49Z), 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/DECE71900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b640818c7b7b4e32a563049051fef49debc0f273aacd2e7f6f0b4be8e3c9f05. 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/DECE71900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38471884e46638c58a029493e842aa932b209d11f30896f4149a3c45adacf1c4. 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/DECE71900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3dc15b51c83961e5862ab8f44280863ad5a30e9954ea493828fa8d3285e24ea. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:50:53Z), 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/DECE71900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013fcca924cb1f39b669215268950a3c931028173d35a04c2a9cc7c7dcd48e2a. 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/DECE72000451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8adc3e7195e21af3f14390e55a66e8878177edd065ce7324925bf9be6eb2694. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DECE72000443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb0fd941ed8f88c656982967a9d48ba2b7a077d46c5a380b963592a99b201b3. 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/DECE72100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc965790215cf4d94c0fd88e722367eb53ee26893a432afa64496de8e708915eb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEUM72206258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ad729e0a29e1c4bc7cbeb672487787740a12978e5dabde27191f4bdd1b975d. 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/DEUM72208242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc190d5b2e17953aafe1f437e39d6071cf4ac95471bed653fa8eb848ffee50efc. 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/DEUM72300278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc965790215cf4d94c0fd88e722367eb53ee26893a432afa64496de8e708915eb. 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/DEUM72206258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b2ec9e9ccac134a32a535c0bcaa326937253c1d59d5c05d8fe83574e90c952. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:10:57Z), 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/DEUM72301270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1302e529522856d335cb2c3bee67a656083f1d605ab86722561dcab0a12b80. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/DEUM72301277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4431a05b5db745ab27cc4781e109062b087a2a9d83695226fd9e5a15628667. 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/DEUM72301272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077f50c453032c2ad209b2093ea726a5004bd862055bdb361115d3ae1522dc19. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/DEUM72301273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1498788a5b44c4271d35b0e72126ecf681fd725fd1033c7390d184ef61b469. 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/DEUM72301279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc1f91cf89aa9a66dacf0ef605d585d756fdd0688913fe0e68f561eb4dd3611. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:32:48Z), 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/DEUM72301274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b25b8198efb89a8094e742ff8b96d186dc9c806786c84dc86d40e77cb848d0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:42:15Z), 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/CH7812406677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ca536187c8b9cca2380349787dc3a4608de448a6898fe229f4ad78fa0befc4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CH7812416239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf685fca32cf756e9477c08f7fbc6378ad6cea93f3a68a8b465da47817c7f127c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEPI81904992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff9ac54c34975d3647e851b7b770efa3e6676723c3a8ddd3e0ab15f4b85cbfc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DECE72100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1982a5d3c235e87bf91409a1bbf3eb1e871763ad47e258a6c7beb583862d88. 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/DEUM71503857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfc065d3ae1580a746c9ee68ded7208c9618a4566b1dec7d0ad9634197ebb59. 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/DEUM71503860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5563209a8317defcb1cea18ccf5175c9c0dd88e2470e520bfdbba7154e600da7. 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/DEUM71403444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70ef5e954d4812763fd9593843bfb380926d8210785dcb2ccb8dbd9612633ce. 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/DEUM71403627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb697c2f8dcd40db8ba935c2e10f60c9699e24a2e5c79985df4037daa437bba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PL89B2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ae3ac4da1077ad2e101db7b47ca2bfab20b2b13887eaa29c41b7beaa4e54b4. 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/DEVY81700603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf685fca32cf756e9477c08f7fbc6378ad6cea93f3a68a8b465da47817c7f127c. 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/DEPI81904992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259f2645480dc219861c9283cb05363752698686fd3c6fa42101acbde6d70549. 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/DEXJ51800168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259f2645480dc219861c9283cb05363752698686fd3c6fa42101acbde6d70549. 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/DEXJ51800168.
Sneakers & Heels (feat. Milonair, Samson Jones & Remoe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd975fb0de2029ce5c6674043cfa74339c88b34466dda19791598922a856dcea0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEBN21600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8280ac43173ffdc38fe3dee24e9e581d0ad8595f1ac11bc3bc40e6f9f146b6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZC62436183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00547ebbf4927ab3c05cbf8ebcb6f3b2cce1621305fcb13c62f6550eacbb16b. 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/PLC062523879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e7932f704eb6339e06933708801b3a2b69a1f9f4f8c1fe8c20351139a1ade1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLC062523883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c500965a38d3ee3cb2460f55d248794125f5c83b7c05d57a10a165f6e947fe0. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEXS81900095.
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