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 0xca8cbe8f910f65c42851942b256c07937280bc71b73e2e829cb9f23837f42f7b. 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/21698c1d-ea09-427d-abf0-444dce841b96.json and https://artists.proofprofile.net/proofs/artist/21698c1d-ea09-427d-abf0-444dce841b96.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 0xad33dfe458371c12ef31470a4025ab74f8aaa369c258b597e4dbbff50f4140de. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZMWW2421093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfb061c20f2e79d7baf95ec59893b8854feaa4d100e75820351144d45682d6b. 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/QZNB82454917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80670820282427664ba16023d1b332ec052d2726612ec61100c9bfa200f71b15. 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/QZNB82454918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe119ae4547d9e7a412a51a775af49ae9a12ad0e388c8d4b13afd1d2a4cca9d. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZNB82454920.
I Got the Lo (feat. Headhunch0, 2glocks.red & Lubandz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8fcca7942269ff7f7e6eb768869510e3453e96fc8e4307fcb5b014c22a8565. 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/QZNB82454921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05984ab0bc04d02c0fecbbf2e8bae5063cffd678b892199110cb9cce7e76b4cd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNB82454924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa475e53513cabca0bf358ca981d5123fb0c370653b3a46ae48ba525d2b0ba72. 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/USLD91761402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72140604d6f39f563363909781a565a8837671e9d656390e90551ba3a7e5fb7e. 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/USLD91762648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b39b3ffe3a38235a5ee0aec0f6b6837d711ed79c95896c6584bbb9e0b894840. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USLD91762651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2d5f10bc640aa961d770a942d054f361626e29a41e9be5ee6a9d57060421e1. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USLD91762653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc7341fff37b2d5cc6e6debca10b188712947205cc7e85915eddbba28fb1230. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USLD91762654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50260095498c9505d7a3ffa5e3259b7312a8359d74073b4a181d3df45a9175a0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USLD91762655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b592c4c8d3f8a8cf810bd4d7ae22c822c1da0996e0d882eba5dd32584d482f. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USLD91767819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0106916dc7f62964c977acee13226a2ea0b20fe1db6e25f3a290bde0756297. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USLD91767821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ab34ba4002122c1970bc8285f9520e95618b0d3e723213c98911ee3e082851. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USLD91767822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bf189c3b93d0c866cb332f5d669d10387c3d8284ed521392eb36dd89661830. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/USLD91767825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1ab4ee24036e36995990bc09d6f6521d75a5af674a09bebda8f564b4eceaf1. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USLD91767826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc031509a1410b41f16b4443bde01a4ed7e2cfd6dd5575b8be081d2da945399d4. 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/USLD91767829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a963d222c3c1cdba1b97882bc74ae1cd61ac63a1ca11b6685acf53784831b2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USLD91767830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fe11b78c324bb79b20dceea0638a5966d4e0d21c08e2a746d80c3a2cc70868. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USLD91767832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9b7d739396759c5cfba84d71f53f3258fb21b0b1c87eb48b8755b88ef8139e. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USLD91771015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f226f9b0227b4af1973beedd49dc1e928a913ae5b8c8e873851dec36b5c9982. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USLD91771017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea5bd8871723f1f67395bd9cd98138ebf3a50ae056b668bac86a13491f0c783. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USLD91775698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac05d299bd4b3c29469ec86d9647f7bfca4bab9ac7a9227a632fcc7baa787c36. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/USLD91775699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d3215a4bd4a5e4d24df12127ccdcf24c85619afad3a2c43f40987a22e47450. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USLD91775700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23e23e1ae7141b97b936031c7e096aaf1fcefce026469b8791169e4bca061fa. 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/USLD91775701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae22496c90b8a4b42f0128529ea87b778cc1d3746040ee45a20fcd7cff26dba0. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USLD91775702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee94fe9f5943a8a72622f67822d8d8a8c3fa28f5625c46bbd20d644305771e3. 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/USLD91775703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f88940a6a83e31a4eed90254f8f710878e074f81f8ef73c171c2addde644d92. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/USLD91778974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f2e585081d0224b0d4b6d94e327dae713bf4fd0af4984e48bc2f409f92890e. 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/USLD91778975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6effd4ac0aba463c00ac38e1d6b4c0338082bcd783cfffc68e2b02d177613715. 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/USLD91778976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff7e1681b2276fab7e36a76ceccc58e6099557a5ea7b539e08d1b92b9c3a3bd. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USLD91778977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578c2134ddbeaa054f89f681a79b4d82444a8a3db2f37a3d3625d557161ca7b8. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USLD91778978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2257ca81ae1cd9a68a68a51f31128c684f0377263d4d73ea14644d461eff09. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/USLD91778979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e5de8f5be7e5d80019a6145c72708bdee32cb175a4e7a0f320d64d2544f452. 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/USLD91778980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7084e8cdc095e7ae07c561b129a3bc96dca9fde9378c0763b80d757cf9fd779. 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/USLD91778981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe4d8caf4c5bfdb736392e2d24b41f9ca4ce7326804bfd482b8bd6d57d7a33a. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/USLD91778982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2469b098e3f4f550461b4840b52baaf8f75834364f02ce28b90c4df03f5d32. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/USLD91778983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb901a017714fc81403aa4b26d1e974bd88bca326071195864278ab641d1f344d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USLD91778984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a86bce8d287f806df954f2154ba36ceaaba1931e13154a640620fb4b142365. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/USLD91778985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0638e943eb4ead2cbfd6dced32743729b5e5a8f493fe2dcdafb62524ce690ac0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USLD91778987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f639b0b3e8d72187790038a616735114aae1c391d1d7e60533dea6031fbd95. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USLD91779955.