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 0xc8b1e3c71f52126dd0ff07e1da9a3ec8cc0b005fc8c7f0eaad85f932620153d5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98157aac-d0c2-48cf-ad36-d9446bc11922.json and https://artists.proofprofile.net/proofs/artist/98157aac-d0c2-48cf-ad36-d9446bc11922.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 0xfc3fabc8df319b82a3373e2aef119ffa66b647dc3d965b21c19b0c6ac02ccf9b. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/QZ2J21507728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15a3d8baf70009cda225803e4437c4d2a704b910bee3a10adc4ad249d8d585f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZ2J21507729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96be8935a5006be9f6dc587dc9a1a9ed11cea378a813ffba38bd7a47287187b1. 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/QZ2J21507730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896feef0772413d5cf270a21ba35fd77661d95685e17b5bbfa0de51191f4978e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZ2J21507731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf44288097115894d573cd5d4a5655886221c4e6371878732656178ef8013411. 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/QZ2J21507732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b78f67bc714685fad64f652272ac1dd90eb01062b80dea1cf52c29261d68cc. 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/QZ2J21507733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b85de39cea89c46d5697d1cbd6d80fd454f6964550640efb4861341b5d84ded. 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/QZ2J21507505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9cbd8113483f3da52b49af43ef6db822a291d45a1b322d6cd2022876620211. 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/QZ2J21507734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abe77461892cb3d0743cefa44a3f01337f6f912a273453ef32207e51af82eb5. 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/QZ2J21507712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40506b075d6c4e189e36f8404f6b57143c5affe50bc19f59a01843e5de81b76. 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/QZ2J21507735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6830d0e82610aca037c22c149284a8a662d820ca97287540f61f0996dfa322f1. 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/QZ2J21507736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfd6e17eeb437283eb3f194fcf6ca3fd692e3db76d2e7db245d07a275a2af7c. 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/QZ2J21507737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698b7bc6d0c8ee2efbc53f1ca2f983b62634b25ef1a2f4e2acd2478ac906dc02. 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/QZFZ62175931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19da23855afd9c26a18761e83bb51c24bf886d40637d230d44cd412506c3dd32. 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/QZFZ62175933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80957b405e9877fbc3d0a67a7467cc9e5e58f58677b56085d917b296fecec710. 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/QZFZ62175939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b4d204a91563b02ff509a2cc4078ccab6b737c2a7212a9ced61496fa67c299. 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/QZFZ62175940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc992c12a4fe5ccef04373e06728afd576bc97e296beafdc8c4ccdb2ec5355db. 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/QZFZ62175941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1e4c690070aa5da3146d7ca9e3f103ce3e8d5093bbf5690dfa00daa6800989. 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/QZ2J21505278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5224449c765cbf74e5f177097f9eba736fcebc8e936a016749873c0bff5f991b. 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/QZ2J21505279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd642827c2c1dc5692a502fc18c003ef8f7496e59a21a0af78065e53f3b5a16. 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/QZ2J21505269.
Kings And Queens feat. Lexico HT, Ch Gedeones, Eva Nova, Fanny Plaza, Tomi Perfetti, Mr Yeison, INDYFOR, DesXa, Ada Betsabé, H-SUFIA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8874c8898943d3ef591b5ea505884d66970131fef9094c83a90a9caa61f59555. 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/QZ2J21505281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff382e631ed2abaf8d1a1b0f85d38f4616beb7225b4f4609b5adacc2a08b3b34. 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/QZ2J21505282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61b334e264ce8e74ec0ea49f27100325fa4815f7d888a2d9c53210bdee35c70. 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/QZ2J21505283.
777 feat. GabrielRodriguezEMC, Madiel Lara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8259d631c83fda133c63d5af2363b299a73b116e2ee4497c5f5ba711cb6eb3d8. 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/QZ2J21505284.
Me Corre feat. Pauneto, Vianca the Grace, Borrero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32156f7c358afced725886667e5e908cf9c335ad64d9a435b284e28645e7c2d. 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/QZ2J21505285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d88c8a6ff26836b53875ecf77b22f0cd3bce9f4218e18fe6cc15c108b8d4ef. 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/QZ2J21505286.
Frontin feat. Niko Eme, Temperamento, Wolandia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169754df4e2501e361d9bf330c0b82be7a7f0113f011e142c93b192076d439ed. 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/QZ2J21505287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c563ccd9372d6b5b825a9d3271fa38cf91eb3a6f4b6a597372d07dd5f576ee. 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/QZ2J21505288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9528297418143921d3da907a4e558b0f54b7bfd393eb4703ca33e9d82d1df445. 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/QZ2J21505289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c75e5046a633d5eed1ee86fad226d08aee10e6e00f4bf1366f354cf08fba86d. 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/QZMZ92190178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4891f75f6e108f5ff2a28cbf9a77a323d34864d97966929ef153d35a7af1a8d6. 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/QZNJY2123262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4891f75f6e108f5ff2a28cbf9a77a323d34864d97966929ef153d35a7af1a8d6. 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/QZNJY2123262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2966b38d53b02b072bc20e6eb99f21a25e406ab23ab46e0e89976f3dcd4a7299. 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/QZWDD2296375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d00540a215a35237c3de153902c959e9d69472f34a39d3eee7fb3c16f7869f. 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/QZTVM2111438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37a9cd7a41ccda47343ac0b5fdcf8a81ba844feb61af1f1991d891d66b01e35. 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/QZTVM2111436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d5a3bd6f7439559cb3c52cb91999c15007e73d3051a792d071debf83727266. 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/QZTVM2111437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dcb77321163a10be9fc7077d86074854d522b049445b65d380d653d6c6bfc3. 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/QZK6F2118949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6996e6b7c431688f7777349875d3c523bc3470863aa8ae9c956d6afdafc661. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMZ92415494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865ef98d3dc450705ff9749b4c81ae5098e1bdbcf22d917550edfcaa7e5cfe26. 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/QZWFE2392524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9705b34c1bde87baacfc06a2a18edadff2abbcb98f590ed86d6797e4255325b8. 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/GBWUL2283940.