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 0x51ec5e2c6b2e927a968d07a4958adcfc3a6f1fd99895c8f62e965651b467e4f5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90d51135-c7b2-4a2c-8d25-5094f78fafa6.json and https://artists.proofprofile.net/proofs/artist/90d51135-c7b2-4a2c-8d25-5094f78fafa6.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 0x0bf781a11dd22b4896854725d1fbf2c3cc9e85fbba20583346ea19dd9ce7f9de. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGXC2300332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff65835bce356bee2a9a50918dc5d8eda227cb9e36b5bd1c6c7117e96f8fa8b. 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/QZGXC2301015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe132a56a8af31652984c460a2d61033846725d10de3a1152cfb8f0fecf0962e. 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/QZGXC2301016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ca2fafc7dfa7010d1d60288157b21a09737741f780c201c8b4bc3c0d351125. 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/QZGXC2300677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cbd39fcf55ffe59115534272834e1b3e276c894c844e6c6658e0f16ef1e70f. 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/QZGXC2300678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20641bdbaf23182b9d33798b66ed85058cd331790772fb6b5f2a45acb45e438d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZGXC2300630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4b802c3e3d5757c71f18ec6e30e93c993a7460f774aede6c9e8586fa5d707b. 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/QZGXC2300679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b51465bdb395899aaa97fd53a097901e09795f4e7a00d11c60a3795cd8a0202. 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/QZGXC2300680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06bf2903140377862c34dc6ac1c3f3635fc38d934c1b1fa040b6321b13f95a7. 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/QZGXC2300681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3216b53945bde0b9295573e702e1425e9c4a4f63b11a618a0ca9bedf24c489. 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/QZGXC2300682.
Steady Light (Live from LO Conference) [Deluxe]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81e2c033f6a1917e060d0f4d48008f6f59703bb31909a235dc47e41a01439a0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZGXC2300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8b15492aaaba966031c6aee4e86ecb604d909595944a0d266503fbfe1d4567. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZGXC2300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe357eae8e65ac91cfeae16977a594aa81923a86f2a5b70ccaf181975e4d95693. 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/QZGXC2300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686b586889674a8444e37840b7b1f07c2d60c6c39ffe8e5f3bb7b352598a43b9. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZGXC2300159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf781a11dd22b4896854725d1fbf2c3cc9e85fbba20583346ea19dd9ce7f9de. 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/QZGXC2300332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81e2c033f6a1917e060d0f4d48008f6f59703bb31909a235dc47e41a01439a0. 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/QZGXC2300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8b15492aaaba966031c6aee4e86ecb604d909595944a0d266503fbfe1d4567. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZGXC2300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe357eae8e65ac91cfeae16977a594aa81923a86f2a5b70ccaf181975e4d95693. 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/QZGXC2300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686b586889674a8444e37840b7b1f07c2d60c6c39ffe8e5f3bb7b352598a43b9. 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/QZGXC2300159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf164a9fb266deedf866017a921294e46da024f8a48372698b51a7ed44bc78b8. 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/QZGXC2400618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20641bdbaf23182b9d33798b66ed85058cd331790772fb6b5f2a45acb45e438d. 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/QZGXC2300630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5b0add58a54b9c77d5835ad6b2eb30b48e45d438fbb6ad9b5b133dc5d75a7e. 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/QZMEM2087672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e61f65b2da426c54183f28f1a364ff812d1ce95a738c8aa1c17a862008a9183. 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/QZNWT2444239.