1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7e8787c348c61f0a1c75669cdbfea330614c0e780368521c40e36e9448ccf34f. 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/7fc39a08-4d88-45e9-a0f0-6f75ff42838c.json and https://artists.proofprofile.net/proofs/artist/7fc39a08-4d88-45e9-a0f0-6f75ff42838c.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 → block OTSBitcoinBlock must exist at that height 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 0xf270eee77fccebffe0c1a005ee21e5e2db4916142268a515c5d82bafcc393510. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPK1920341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb298369578031266c7c5a1238f849c307b933e09f9c0e7b9209b9f789019fe. 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/TCJPK1920342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274ae8e3c61d147fdd12fd99c93c669c028f6324cf2e87a6edd513a0a5e230c3. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/TCJPK1920343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f992a2b3543d86abe9e6289cd1802506b400611d485d6d866e5df601d4f9da. 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/TCJPK1920344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda4bf3fac251aefef54c4fbf181a4bf342b748f1a0467d13ea59bbdfd559797. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPJ1955450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac813be9a2cd2bb9491ab1162a71a49da37a4469c0bf70cb0e4d99c59e97bdf0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCJPJ1955451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2da6b85804b43fb7d1de082cb9430ac991767de9070e9db32c4c670d6a966b. 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/TCJPJ1955452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0ed1e61c54687f2ebe4d0af1ab3b4e14e307a8d54e89c30b55a2ad1b54e510. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:02:21Z), 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/TCJPJ1955453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9e4476478bc0d5374f9fec3e59c8bc58c18cd5332e85e298e2912f16bee1d7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCJPN2021954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc505792e9b3465dc2a7885f0c17eeb3ea507e41fbb5c6a495de14c8d49c908e. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T07:58:49Z), 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/TCJPO2194182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8177de0d21faf535001e327aaf4d1f39caf428594cb8ffa24da5c70fb3012827. 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/TCJPO2194186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef9c3b921f619b700e3b50f1552bb85a2aa112882f35de2c2686f94ea3fce02. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:54:58Z), 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/TCJPO2194187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a402f71d9ae95f31a06f2817c518275a09296c075b381f43e9cef8e727e503c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:26:43Z), 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/TCJPO2194189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896eb603ecf359e2dfeb5bf148ecde7bef59607825eae2c3ba4d88eebdc19db1. 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/TCJPO2194202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc5be6d0a6ece9f64482ce9eeca10bb3703e8ecb75acfa0a6b6c47dc2a7223a. 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/TCJPO2194205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98d4fba8960b16dfdfa1cc8e2b60c543df76597500bb8d90bd605b383b7fabb. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCJPO2194213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0344fd26d154d378e3010708c2982d735c7ebe51b55b0abcec563e54068c56e2. 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/TCJPO2194194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea294d43ee498ef5ba6944bf7b41f717a7d994dfd2ddc536a38ca9a428307fdd. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCJPR2203966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a995d46962400718c7b993b251c84b2eef059dae32427f2a84d652db254b66. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCJPR2203953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4780928eeca923d5fa304c34de7eeb65036ceae98e9d3547a641505977011aa6. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/JPWP02300543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c89511781067899647e95eeb87383d49d15ca78830c62fb1559b1b500fe651c. 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/JPWP02300539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e57855708378801e6552fbfe77c30f55852d7e6f512c6f2f2e61325e99d55a. 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/JPWP02300540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e0c7093a8efdcd53898633757991890f9af69b45b5a881671a5460914ac60f. 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/JPWP02300542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee423d2ee6495f4ad4c0054d4dc26710ffcd3e9109a21c418723126b81d5fb54. 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/JPWP02300922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560df3eff5cb6957107a862e53fb76778d0c482ecf004921e32c32d737a579f1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPD2408959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347c9b11e577eeebdaf1ff776b9b0b03c5922332caa756bc4785ee8c72cecb2f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPD2408966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e2ce8543c1d1351ae934acd6faf3b0515a74de6692ed2b0f6f3be2e46f6cdf. 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/TCJPD2408972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382f901acbf5ada7b61fa7dee5fc6ff2a52a092b2fd3c96dabb99fea44bdda94. 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/TCJPD2552223.