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 0xd6eb4700df8b33a65b9fe055e9b5ec48ed839457043e70ce52c8d0313fa51093. 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/8087fe66-be7d-4d1a-9fe4-c9ddc690b5d2.json and https://artists.proofprofile.net/proofs/artist/8087fe66-be7d-4d1a-9fe4-c9ddc690b5d2.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 0xf0857ab8470ff79e07263bf4821056038e6f9448e8e3a8da56bb51fb661726c0. 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/BR51G2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb064008d22356fc22878f92cd2d8369f2cc1e31ad41d59907ac920b462021810. 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/BR51G2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8ca9e8f8e4cd83e70f662c07b517f68eb6d92b86bcf61f5d702bd892384d4c. 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/BR51G2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77098b771b3b2c76806efb74fa296676af5a306d2c265125c66b513e7c546bca. 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/BX51G2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634fd0764896f8fac1c9dc41147a3d7d20d3d06984ba0f646ca9e46673c28e55. 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/BCSUV2303434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e5a59de3391ba4806d61c8fe1947b81c01261dd922daeead6113fed1bb321c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BCSUV2304382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7febc8c0b04101718defa005a42b92222c309253088b1b455680a5a68e83bb25. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:51:52Z), 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/ILTON2301965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663561d06b7b891d6573a13fde9a878f6acea80c26090155765668b748bd626e. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BCSUV2304811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ac108daee83184926e48e3755246f6a82c1e49c03e7b9bf25428e1914dc522. 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/ILTON2301966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff46da25ded5e600e2d56df4cb9942398f811f4ffcb135adb82691565985e9c. 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/ILTON2301969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4717640470bdb6c2554a4be89c677fa82bfa5596557c78ab3ff52acd082a1b41. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ILTON2301970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3133132866b8c6a530eda630e90235d74fb2b07b2877c0f2ee3b31cc0adfd3b. 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/BX19Y2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885ce36a7048869268ca460e7fbf2c82beafe8da45928fc5408f4ff9995405bf. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BX19Y2400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e1f277465c7e6d8fe683579eaaa170a13d7ae0970cf841eba40f6fdfa4f141. 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/BX19Y2400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8582cb382793f274ec42cda0c6bab1b10022856a2df594174d2e8221d314dfdb. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/BX19Y2400069.
Medley: Garçom / A Dama de Vermelho / Quem Eu Quero Não Me Quer - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a47378b68cf931c0841cab87a9e61262586dfee94e78514557857600a59e0de. 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/BX19Y2400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b74caa49ae95000812180e462f1ba3cfe00b6604705caf68526947644b4f40. 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/ILTON2504235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f887cd818907b95683f0b0844c84b44ab2bac87c1091996f2bf421e9d325661. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:11:12Z), 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/ILTON2504236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1efc40293f99bb583179131c8bcae41428f8e68c6b003b33c423e5ecbe1a570. 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/ILTON2504237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4063e706cb3b4f338ef5d64ca3000237e8f397b455a28fe3995952267084ec. 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/ILTON2504238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1e19dc45d5e5c5ab70c9272e6770ff11c0f2c840b9cb89c4422631d48a5d7d. 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/ILTON2504239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0027cbdfc5416d2c0e24b08c80bc09c81edf4009e4ae6b7ae29693f781197705. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ILTON2504240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c28b5602b6febd907b155d9a4d4e01558b678e1638772a5238c4d2f76deef68. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/ILTON2504241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517e381eb46346c69ab62288587e0f4587af125cfa86e4de6d4e3dd894f16711. 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/ILTON2504242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b09a64f26babe49064fbc3e520f52507af9e597403f4020836b5e2f180cfb4e. 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/ILTON2504243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbeb9b05c7cc2f7f233bb21ad798d122da06880b07b443cb833f1ad9862e58e. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/ILTON2504244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5e18640ea246458a09ca5c0e687215e860492686c00bf75e5b1a005a7d22a6. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:55:21Z), 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/ILTON2504245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae48e0b7000f0fed7be3474d064b4c55916f34c246454165c00c86fc421edc70. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:36:39Z), 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/ILTON2504246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd651b494636ba6446202f05b91ee1c81f0947d952b9244832abfbaae8c5805b5. 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/ILTON2504248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeea31264584db35ef7ab1362366f000a5485746d1b9b109b48193e045d62940. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:06:46Z), 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/ILTON2504249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160b9b2b94b753fc3ece7f41a8ab6d26a8d1c3f373fe70ba935eadcd5718a584. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:19:04Z), 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/ILTON2504250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7854b1df02405581cf301dc72d54e2243fb79db95a688a041ca41a66d54c004. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:08:24Z), 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/ILTON2504251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f83cc50ba0e13b5abbc898fe8922ccb6152aab60c32694529a5f1425ef1eca5. 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/ILTON2504252.