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 0xe9dc92171a7c71fd51b23b3e3547f10bc96852b1317b617b6a7fff60195ce4c6. 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/2aaaf78f-c2c8-474a-8850-ebd1c43709e3.json and https://artists.proofprofile.net/proofs/artist/2aaaf78f-c2c8-474a-8850-ebd1c43709e3.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 0x5052cbcb83dd2eda1259f8a1aa60be8ee90559e8e41b3cefe2195968d2fa662e. 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/EEAA10010002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359bb2ff52d127328082e4aa26cf77cf4e9c30506320ab11e11cb7e23c0a9a8a. 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/EEAA10010009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc04fb3150f14e1fe6551a6455c1c780bfebe1b722224c0da2ae5207131e244. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/EEAA10010011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699bfdf3a960b38aab0d990a97b098f281b889a1edd3341966a00ae87c5cbbac. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/EEAA10210010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a683ccbb1a813ecf4dc37409656f15b9fd506e093867dd96e7824a08c785b2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/EEAA10210030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49609ddfd5d52e8f3e41f87f13a0a9fc6b5ce9fd4938a67b72f0eb492ed98d51. 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/EEAA10210040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97b38a46b8099ae7ebdcc36e305967f9bb0af00f50d40a6f3ea12b0811fc94f. 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/EEAA10210090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa276d509be08c9ac40e908f1dad0752b07d3c93bd4220dc8f1bade774b316bb9. 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/EEAA10310028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cc02999a8829e0b5ebf6e464df03b603b851dff33f77c0f1e1db189bcde160. 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/EEAA10310031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42397f16879a2f43091fed7392addba97e81c10a3da78b17ce90f8a026ce17fb. 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/EEAA10600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bc2dc503fed7a810a676bdde6f6b36f6ab5419040aab94f4490d7502ed1f42. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:12:20Z), 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/EEAA10600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5441a584f984e19d141a4beea890f5634ebf9c52829b5052ecfa9f56942e2069. 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/EEAA10810001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4594dff823edc917f11fd3e3dee108439e7a00a94302130f990cb7cd2f5c545. 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/EEAA10810004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84170546776ab6f885cc1b532b755e508d6c15e31761b331ed0ed474ef13ab5f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:47:26Z), 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/EEAA10810011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe403459cfe481d1e27e776ceb83157fae87209dee8e4df07b6afc0714669079. 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/EEAA11910001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf763179949b2b4da3e4a31007dbd88651067375add7b02a80d22dc0f533cf76f. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:07:39Z), 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/EEAA12010009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23d28d77e9a132032e646de86758b626754e8e5adaf8e4df14a722ad9c19c5d. 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/EEAA12010011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a5bbc46826e8c8aecbc2e971e55589528c84ee25ab618079816967c74f0497. 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/EEAA10210110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd3a4a5d0f989c2a8598c42e46b4d59158c31ff7bb4d2d6ad1408f2d452bf46. 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/EEAA10010001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227b5d154cf693db7b4ea02fe759c0d7c34d2d14429ce33ef88c35b9965586a7. 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/EEAA10300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6de81fabbe6aba7a7491f01d20a158b782df295b5df8f8c2184090c4c34eb7. 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/EEAA11410015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375f2e91d322f42e103411f9758a60929ad764452ea1f9761b6e4012ca5477f6. 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/EEAA12010001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4aacdcb78574f3db17bcac8039dc1d3535fa8ec0db32cba9463c50fc79f902. 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/EEAA12010004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e6d28ab1396e53604677c20b30f6c27496d2e4db835c4ea3c538256943b017. 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/EEAA12010005.
Au ja vask (Funkified Anniversary Version)