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 0xe58762fb7236351e98c57a36003a030fc4ac787d05edccf43a9849c41bb19e8f. 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/f2c8bd10-0984-4676-8b3b-2d35b8a273bb.json and https://artists.proofprofile.net/proofs/artist/f2c8bd10-0984-4676-8b3b-2d35b8a273bb.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 0x5e3da22f56037cb8c4e9fd33db3be42c213960467220dd2afd061dacea3eddb6. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/QZEQU2149755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4258a4d3b3be06b7effbf2ff4928709ec0b2870be71620c90438b4618c1ed505. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:14:34Z), 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/QZEQU2149756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ad69c528c527a6ab18795f8279b30ac9d3092c841976e5da92b9b255809871. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZEQU2149757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ecb09219274fca5599f3182f0e99de0b86efae000ce5777165d589b914241e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:51:52Z), 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/QZEQU2149758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb61d2f1b7e6297cccb0c74f5fb83b640621e199065eeadb5efab96b2098213. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:26:34Z), 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/QZEQU2149760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92d3f14ff5bc59a17601a12b035021d0e68aac89b61a47683b5be05c431c29a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:39:42Z), 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/QZEQU2149761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf840d8542cc09bdd20bf7e5137595c621a99118e4e7c06445c184de4db53c1e1. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/QZEQU2149762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec53fd42a7b8a7a0d5cbe43b2e0f0e3e815038bc86baa687e66958b0783e62d6. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZEQU2218191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f8bb3b2650320a012184d23e010462d2ea316c61b06ee8f8d015024648ed40. 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/QZEQU2218221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043b1d1667d02656b7b0167f8d451579385b4730092c80ddd566c56c0933771f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZEQU2218239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119180009004c26749062a75874139da62ca80059aa4fdd112403de419972544. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZEQU2218252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690a075c9083a323b1e65c173f378afd701c4e0c4be042b732c3b7da9cefde33. 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/QZEQU2218255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff565aebe32cd93b5cf3316e0d5104ab14d8d4febf76299ae23cbe1566c0b8f. 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/QZEQU2218258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5222944361f4b529966b7f636b4084fef87ca3af1832ad25b3982ba80e788381. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:48:45Z), 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/QZEQU2250297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8b1ed5a86ab08bf0959aa663efc89ff1b360551c001c3c26569f3223b136f9. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:48:12Z), 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/QZEQU2250299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b7dcaa0f4d3edf1064d3de50d3ed38e2e1619bc6bae147419955d41071a65. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:30:29Z), 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/QZEQU2250304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b5e34acea1ae33df99f69f7d37dfabe96ef35010f75603f8053815f3686927. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QZEQU2250307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2524137a0311bac46440a34d75ff1c592b8c6f87d17450c92ae1c170e6ccf4b. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:23:52Z), 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/ESA112315255.
Tbt du Gavião: Balada / Primeira Vez / Me Pede Pra Namorar Já Fico Nervoso / Ela É Minha Ex / Eu Era Feio Agora Tenho um Carro / Bota pra Muer / Trair a Minha Namorada / Pistoleira [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dab6f82e7369aef8abf75973c3434bef9be1a54e9fbde19fe969d092bb8aec. 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/ESA112324805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8236f1823d1f281c9dd695cf6093d8c1298c47aa0a4fe378d7716ef7655df3eb. 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/ESA112324807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5e264a0e78f39bbb1b59c9674ed382eed4ff2b0338078d38515e969db7f1f1. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:19:15Z), 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/ESA112324809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ec059db54eee13cc70c559e2ee3a1b5bd486e3aa2dd1eb7bca292650ddbd53. 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/ESA112324810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9101f29bd77af9d760669236c5c791181b2500e9f3ffe2d9a9f3d670b7bcf3a6. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ESA112324825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6bd8f73a26a6dec521319071473023ecc5abba20b23e43facefd7b502c1db2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ESA112324833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f08be553aa6e553b812ffc2d74a194f83e06ff1e7d42c7507dd5c563d0b17d. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:35:33Z), 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/ESA112457065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae1e717adef77e3220d69eef24570c017746f5d61446d41d8e3f11687039b1b. 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/ESA112457067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18ae6aa44a4837a141c7629107ece7effebca10278219484c4068b343e4c365. 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/ESA112562286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3195579b1bde0b73779c24a99a463469357580c1f9e8c54c9885ddd79676704. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:44:35Z), 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/ESA112562289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36401c4a8d19bb826a4b9011fd3f42c3c48180a310ee99a335b086ea48ea7506. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/ESA112562290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd22d7c8d0617eb8c67c1a9a24d4fb1db7693e7d7042b2d2335e937fa2a25261. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/ESA112562291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1f062275c612044d3565d89d8f683e248cc07b8444f51b1355669eaa9681cd. 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/ESA112562293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef45f8d5d08fe836e07fc3f42188dfaabb0d316d5f2059d28fb21c19012a0ee. 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/ESA112562294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae342d2fe2643c0d0c42235b2594dfd77bac068e194208894ffbe65139f9a884. 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/ESA112562295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1861c77e4081db266c55428256675c966a5760b1a4741523463c11c168bf8b. 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/ESA112570015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d3db23bde37e3e0192936bb3de7324990b44bb82777bb6f728a24632968438. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:16Z), 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/ESA112570016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7ae2661282cc6b76720c15a4b6f62827bdefc5d2ec169c1ec510232a9f1be0. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/ESA112570018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53662b7d3e712f669cc6379402989e30d008882d51c82a0fe66fd2976cbdd21c. 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/ESA112570019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa438fb799591d905bcce050553ac975206a99e8a851f47e133489b88294a76. 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/ESA112570020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6566e0e68ce811fe91fac04e4a4744436bbcd167f9a0266fe46b2ff032d1cd15. 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/ESA112570021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75112d13be8924b6c9fbfb5e2b8c62f3752d62984932fc68381977406513593. 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/ESA112570023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5095cf6b889103b27006b90412cffc06b84ee6896db43788e741c3a5ebd5ac10. 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/ESA112570024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1e2c394a8eda0e611e5dee4f6707852bbba8888d32fd88d2f968b71ed5dece. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ESA112584179.