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 0x81e9c997b3411133c4cf4c2727dd8c8c36e5155d393fe086d8137e416cff1a0c. 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/e5d1f2f0-1b77-46f9-8fb2-7ab6829f696c.json and https://artists.proofprofile.net/proofs/artist/e5d1f2f0-1b77-46f9-8fb2-7ab6829f696c.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 0x1bcc07fb880212435e93c96e13be2d1b812e08e8c7ee57d63f97263eec28c68b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ARF101700119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342460c6e0bc044af9b284eefa504a429827e2782ee981a33380e80b0fb46d14. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:02Z), 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/ARF101700120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a6557bf827a111c1bdde5fdb21d6e4e43cbc4d814f0871707ffec02baaff1c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ARF101700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efbcb26fe8ebfe618f93f07a4ca826f5e4c1e86eed9684e6edeeacd1bb63735. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/ARF101700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595924169b164e1e2de0e1a656e2adb40d1764c4bb1c4258e72c104cb61afc90. 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/ARF101600648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4778d96afb3c014a8ff80a4b33b2dd6e6502d60f052000f959008548e9c09c1. 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/ARF101700127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc752fa1fa8aad38eeb30518cb14ea7a67f3be1e8c9f11a5709d707b5c700530. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/ARF101700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6b988e5c8cadda349ba882a5663c9a4ebd2a32f6aaaa307adf8ab360920024. 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/ARF101700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf03a117a71c2844f0dfe01e792ee83c8bf3f057f633776b21a56697e6ca759. 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/ARF101800189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055fdd65c18c7275008d7fff083819fbd4d79c4e4490a04356226a5c4f50b4fc. 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/ARF101800337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fa3aae8b5b9f357fb77b95658c4acc9a7b265b18d7157c65f56e0cb5a4bc06. 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/ARF101800332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f381c94772187981600902a87fd0c8abf24f8bc14d30b61f4563c67ce400c0. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ARF101800339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c61358a5d0000997dc73825b746a2d5eadb886e02940eedc58d39b6345b107c. 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/ARF101800338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94831dfd4bfe2c8f0dd7318ae91c73db2aedcaa6074eb170fd2ecdc0e357a8a. 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/ARF101800336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cd5add99283474a6fd6410b832cef9b891a49ba2b72e1ef5b7e1001b768e4e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ARF101800335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1337fd09ccb57dea59463ea430d5096eaa674852df48ad5f625cfade0a75d69b. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:28:42Z), 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/ARF101800341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771d1852589af711cddc7bd52283416cbc44a8d9094cb1228ec40597c0412afe. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ARF101800340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921d9434fa8a87c2ca36a84b7031135092ccc16757247e9cb9790885b067ee28. 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/ARF101800333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f79c377232bc7ebcf2a4636526890dd6f9587bb9b61de7774009c560feecf8. 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/ARF101800342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ce519bdf0c801a048419c9494ccbda1337ea36f03642a9bf9e97d7ad69539e. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:00:28Z), 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/ARF101800334.
Algo de Nosotros Dos (Toque Real Live Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226b29014940b08772bba7c9acff8a16f78cfbfefa8e1068d064666328d6eeef. 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/ARF101900347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969b3770d94540a7853e9b00523a9739e242c9a6510d6f00147a9604c9e8e300. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ARF102100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3bc2fec7d699ead8681252b7f6d5d87a971844558288db904e5696a6a5face. 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/ARF102100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2216ed233dc180a94e2cc7c33130d92bc66e30d4181c569fc228bf0acb666d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARF102100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b002004f5aafac033ced9d08abc77a6fda72fa7a7b7a6602072fecb5647c43d. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/ARF102100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51f587d40eb8426458342e66ba59cf900b0b1b5cf28cb4194fa5a4099ce57e7. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:30:55Z), 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/ARF102000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d9b24c9bbb014f1b228cd99c84b5b001d46c4fb35bba1766e540326ee27007. 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/AR2642100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0fac2500c7285ac8dbbd4561f75a0759a55493d062f73639ae6af8a71f2228. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:14:46Z), 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/AR2642110156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9528aa4ca5909bd4ecf659ea4ad5e36b2eb5daf4e5e17e9a33f1ead1d94843ce. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:25:47Z), 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/AR2642110195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0239a9d23d1ade55f12dce18b121fe0f77dd3914b5196374aed553834f670d. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/AR2642110191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea962e4d609b351473cc001bd61b5ebccafd5e067d0732b70821d921a2a2210d. 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/AR2642110192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d9b24c9bbb014f1b228cd99c84b5b001d46c4fb35bba1766e540326ee27007. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AR2642100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3b06882174d70d8f94be063aa3d6ebc0cfc77464db85f249f3fe90e98033e6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AR2642110193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11175c352fdd7576d15c05e426fcb300da0d4c27dc39f78f63d57e58df7f120. 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/AR2642110194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064fb1c1ddc0d68a272acfb639f252edfd4ab8b348c4ab3f5631a79d2b173cfa. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/AR2642110174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea91d5f2d2d621b40ce95d2212702e0a4f79051f9568e5df6fce47160b7deada. 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/AR7022000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c9271cfb3c3782ce2e825e85f4aae4a023a4056fca0dffb858afd1f0f20d12. 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/QZNJY2139761.