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 0xb4f423a61d4250c2ca14d0fa273898deb527965e78911422456aadb672928a24. 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/f46d21e9-52c4-4122-947c-eb45c9cf4606.json and https://artists.proofprofile.net/proofs/artist/f46d21e9-52c4-4122-947c-eb45c9cf4606.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 0x7846e7bc0f31e45d69c989cb94d0521fb6ea46c14ab41704a5fdc5f6c7d386ec. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US9CY1500879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028e30435cace0be4f1e426d3ee12e9bca1ead6a805ff55346f1dc83b850e731. 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/US9CY1500880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a4e5c569516119ed03b6b426324bcb2242746a0f4096200154f11080ced6c4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/US9CY1500882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6470ceee3547e7004726796c2a829477da88468b1734fbe937189629d06a3f92. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:26:33Z), 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/US9CY1500884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6f611ea1ac6b888b469ac15725bfdf89cb6445fdff3857bf792547ac20dcf6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:13:43Z), 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/US9CY1500887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c8d6c507decb4271036bc52536333800e1248210c1b46d8104bbefe4b8a67a. 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/US9CY1500888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188081c13b4783db0e54ba691a1fc22ee0548ed94fd5431cb945ed303f97c96b. 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/QZGLS1926619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bf930d4d6d5ac37d1eba2d5ec3a49ad98aeea893df7134d6d1f4082697245b. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZNWZ2004180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3495a5ae35288d5a48edc97a11b215f5e641a80ab6776a784505adb0c0fd247. 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/QZES62123271.
Respuesta A En Tu Perra Vida - Respuesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1499c9ea323ada314f0476abe31e4dd72bb8f64ec672ea904d8b357e22a902c9. 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/QZHNB2190016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ee0e175e2ca424ef202d863929403f6141ed3b7e48594477ede95f636621f8. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T07:58:03Z), 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/QZHNC2145318.
No Te Hagas Güey (Respuesta a Si Lo Hice Y Que)
Jaque Mate Respuesta a el Tóxico (Versión Norteña)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1950716cc1f641df015bcb5718ec21ee83556221404131cb6c5dbcb992fb93. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZMEN2186258.
Ni Que Fueras Que (Respuesta a Ya Supérame)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7bcb6a3e4680108bd3d259083940cd7e3157a799e7a236dbb5d92ca137197b. 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/QZMEN2165352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0d3e1d2588eb9cffc776ae3fd33cc4af0552df39a8a2518abd875e7c75d373. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZDA72258954.
Superwoman (Man I Feel Like A Woman) [Spanish Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5cd74b341dec98b278deecf9785a055591ca0af2a01f84f4008e3edfed17d7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZHN42240326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e63c823c6b4a5b2aa5e9626c48854d572863eb8997ecc6627ac323e0133a01. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:08:33Z), 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/QZHN82294429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3003dd8a38b5f10ade87a0d2536b844809afd6bc7946dcb4e9255d0b6c8af81. 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/QZHN82294434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d74dc8cc8dadad08bcf9525f2d597454053d21b18699151dacca25a58d34110. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZHN82294441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9f8475d368fea5d71a10e40a5e890273190108d20c0e8bcf0f0c4f7b66bc34. 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/QZNWW2233325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eec77ff3a5f51c80ae0f5db069fe40af29f330ee04df0e41411fe8333e0b7bc. 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/QZK6L2309310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee304524d601d4ba4f0d4a66cb9acc3fb9a3da760f1eb7e5895b0dbc5ddcb1a. 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/QZDA62422562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75565fcddaedc0fe69e64d20d21623dddf494a8cda71483143e64e2f1bb67c4e. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/US3DF2452323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b0075d5f13b2d78258165fafa02751f4347f7c139e76eca95975b243aeca45. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US3DF2511262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0c7f2ed7362b2cafecef92557f1daa3ca9839ab590443ebef09469b18e39e8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US3DF2528151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682d197483dfef8b74507d884e02a6128266050059bee4fff48fb0ab41ec7bc1. 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/USDY42145351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277c119f5771c964f3eb810641ea8dc62fcf0a53cc877b1273f4257167ad055e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USUYG1335616.
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