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 0xe7125a9e543e801df79ba4be68a46ca3b9133ecec75c542accac1f8c23191de6. 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/2f5f06b0-c7f8-4462-9d9a-51c11c5c6e5b.json and https://artists.proofprofile.net/proofs/artist/2f5f06b0-c7f8-4462-9d9a-51c11c5c6e5b.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 0x8257b34c911a267962f618f96793c60887b3c5905ad7f531dd947dab65161885. 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/NLN1H2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd057895fd32a99f7693952f15626fa77ded7bbff8140e308369b364ed19cb6. 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/NLN1H2100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ac9d56d8a083551e6effe3f98d1906f8faf16e58998cb7e4524f847c27bc4d. 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/NLN1H2100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b172a362c3512c42db6377fbe4a93c107d81b08f85fca8f90d75ec9ff5afa5. 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/NLN1H2100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31354958059d4e4dd5c32eaeacc03f38126ef54085b3139e1c783aadaca19fa2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLN1H2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb66d3ebf0082b94853eacfa72451c4cf877ecb6241b6d38410edfe5041a3b15. 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/NLN1H2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d758521214d016bb9c33aaafeba3986e7508581a68ef3550ceaecd834fae7c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/NLN1H2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deaaaf5dbf71087979dd064032c5dfdf1a72f89f074590d6e436d034ff3492c. 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/NLN1H2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54ddf522263b6233dfa6bb36c84f196b915e2b75bbee2e0fd7dcced3fe79885. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:42:53Z), 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/NLN1H2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c24feb9f201d6ff944126fc14dacfcd7d22b5679b56c5c9596c34eb75cf333. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/NLN1H2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84476dd74e60471eaab7e1d2c67d5a3de11bdbb416f0d305ee3c1e57e5bdc86e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX3Q92469258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14faafa55632d57abe8a739965cc4247e312f6f141ccf5480ecade909caa609f. 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/NLN1H2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84476dd74e60471eaab7e1d2c67d5a3de11bdbb416f0d305ee3c1e57e5bdc86e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GX3Q92469258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4becf127f99c4a1940a215f3adfeb103085d585648bf9e5586af415f051dfe1a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLN1H2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14faafa55632d57abe8a739965cc4247e312f6f141ccf5480ecade909caa609f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLN1H2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84476dd74e60471eaab7e1d2c67d5a3de11bdbb416f0d305ee3c1e57e5bdc86e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GX3Q92469258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf4d4fb9413798de02acca008a1839c0276925b976976bbe53bfc2eae3747d5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38W1229208.
Watch Out For This (Bumaye) [feat. Busy Signal, the Flexican & FS Green]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e5980dce4a756eb7714408aa9ea9d55a32f02199af57d46f96d25e6af79db6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNWX2207453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42739b77052c4587aca44b1acd5b9431b1620bbf6f497e3d5a907467e5337041. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/KRA252302346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce48f30dc8a58adcf5b95d4d93fec0fd8eca177ace774691761896fafb52384. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLY480900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda458afc47ffea1621d6dd3e7c6e183d6cd31a6439d024166697cfabd051a825. 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/NLDG20800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bd3e14ac81a333f0a376401fa6748ae659739ca0d1d1f9164e683bf26940a6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLDG20800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bfecd14495aff15ffe23bd56a90759fa9725bad87812bdd1271c5ed159d5d3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLDG20800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e8aabcc04e085ffa0b6673864e171d2dfaf9ac7a1c1562a6b760952d433af3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLDG20800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b06644dfa6e0e15ae635c25091cfe84975dbaeabe46ff5ce8e9e2a26df05445. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLDG20800018.