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 0xcb20da836e51356857be1e39bd044713e5b0ad8819de5febb792336146acdc52. 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/02a6dabd-6628-473e-bb99-8488b7f9989e.json and https://artists.proofprofile.net/proofs/artist/02a6dabd-6628-473e-bb99-8488b7f9989e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Meditation: Reflections in Silence
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 0xe990e4dc14c36066b164775a614fa2c831022db61425321126116fd8c694c686. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/SE7TY2500937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa954f5818f0dafafa3bdf4b03a59887e057fc1e344e82887e99737d1080701e7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE7TY2500941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec4b7334d1cfaf64ec7cc857faea7c2a331427b54e1bb845bb2013e13a8e41b. 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/SE7TY2500961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e4486a8a31b988d55581a00442d1d7b3b20811c2a9530f707105d070fe7c31. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/SE7TY2500973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecad2ecba2a00da2186a867b7a277e1ee61be53f828ae098148cbd8723c3b8b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE7TY2500981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c5368b2c14945a4bd412576f8a752f6b01fee13a8abcdc3fd34a14b32ab995. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SE7TY2500989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2714a3a2ebec1ab2f1ce24314cf7fe6667d63fee0c69398e4fc71ee234b1259c. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/SE7TY2500993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea399fe369b52490cc6b9355eff1d90ac7c96195777beeac059a53b5a0c6b1d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SE7TY2501017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecabd83aaa2ba6a98526c016713261ac6f8692311901645e5321d6f1fd54e77. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE7TY2501021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6472be1f42a00b5650a226bd92fed82f3f0447611bc557743b18462b18889d64. 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/SE7TY2501025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc068b7a3e7bc11a4716bba90c34de93b25f3116151ebdd82b77fa521bd92f091. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/SE7TY2501033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1f3dd609e0337520d0fa87297f9acf7ca838c4f30f586d9d3a687b13c7d1b1. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/SE7TY2501037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc52930100d03f29673cad7e038adab0964cc25b032bd79520df473e3c7643e4. 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/SE7TY2501041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1028ca23de31842d2f30e0876cac49636465089a2478f8de835f100e4537c3fb. 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/SE7TY2501045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac34b2d5a3ef47227fe2306f8ff782fea8bf4f33b4e5c0120255e4a2da539b3. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SE7TY2501053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ea3527a4e7d4151d6ffa81fdc32f18e0d5dc56317a4766c5aa21ad4d39a1cd. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/SE7TY2501061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d736218fc54304f152c68d9903bfd237774fe3ff38d1f6b7988f4da550f78f9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE7TY2501065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424efd659fc9c9b01193b26bdbd2a23a99f3ecd40e4d6920d444008dac506ad9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE7TY2501069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d9f86abb35666718a406ee794df0f51da7c5571c7d5f503173a3090c107a01. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/SE7TY2501073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493d69e14bb3a539ae036953e4b96afb67b1eb42e427ad87bf57887f1aa2740a. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/SE7TY2501081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe261863dc4c36ff207943f2ea63e05a9f7d7ed18df5e934f503e4f216fc5e873. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/SE7TY2501109.