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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7456bdcf9440723349dc558be2a463d43bcb254651410ddf98bd5982d098f3d9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d6301b6-ab95-4f63-82ad-8a0760cd017e.json and https://artists.proofprofile.net/proofs/artist/6d6301b6-ab95-4f63-82ad-8a0760cd017e.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc821436c73493fcbaec099aad57c5fb69c7ff736f8688e135077e055c3f153b0. 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/SEWEZ1100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52484c7322851ad0b0003070771c99b5e2b6cd95a361321206f734fe49908820. 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/SEWEZ1100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd105c5476689d0e0876f2e73e9ebe0b616ee07a2eddd0968b4726509cdfe5064. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/SEWEZ1100505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb22842f27c2a09f7a659e636805ddf772447093c9e4b8cac67c975457b1000. 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/SEWEZ1100506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174da6148466c0728209e8cd6d7c3b7a477f78f78a1e91b7041ee1856e032067. 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/NOX9X3413401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf164e3151ac49a6503c9ad0137693b19d407ec43131e9875f869af4f5be87a72. 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/NOX9X3413402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2ddff199c6fa5a8045d4b2d7f22c9c4e615afa95e3235e16c2edb1ce5215d0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NOX9X3413403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcf7dd663b5e3e1fae6349999311fc87323bca0aa1ef20a27c2ffd1186ed439. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/NOX9X3413404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed653a56204ee87122e1d914c6c166f3c3b6509734522b96f1b6dbd425fe7cab. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NOX9X3413405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd462ed5c6262ae4e02abb657705c9077ac30f1a784ab0702fe1d7e7174a1c6c2. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/NOX9X3413406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76601a69537a28c835c93a6f6acfb02b6bc7144407e0123e80e4302989a78e17. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/NOX9X3413407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca78a89caa0f8c46efde3114ff28d1ebaee060debd19f9dd73140d7ffca6ecd1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NOX9X3413408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2555ffced0646efa532e5db47f15e2371039e98f4e11c9ee26d0a852137b6d. 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/NOX9X3413409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3144960aec6c8bd15d0aefe6c321db9359448b27d0e468a2ee432b9a498b49d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NOX9X3413410.
Tomorrow We'll Wonder Where This Generation Gets Its Priorities From
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455b22954568b12f3a72d6fc9d2fc67e558c990d6a70f761d314b4ec447a45ac. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/SEWEZ0040401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3760271420b53d04d9854cb16819a46d6a65cd310208f97b451aa7f3a3ba574. 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/SEWEZ0040402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb0c03446de2308b5f915889970a66b2d7f5b77f3f6c9419ffafd3c56e00e56. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/SEWEZ0040403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6613de5b32a63b2b12e4faa938cd75d00cdc5626f314b46821ef48288863486d. 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/SEWEZ0040404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f977b05a2890d5b4988eb3d23bb3af0c1bb0d5bbb08a621bdb6043f98c646fc. 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/SEWEZ0040405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90aafd7382f43c2313b4ee16d0f9f14bb5e6d5142dac8d77ee06b74545e0bf9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SEWEZ0040406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccb35f98796d6212d53a788bdd221c56211d5d54005830a768e949b1a1b0ef0. 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/SEWEZ0040407.