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 0x7ac08a4150c6fa0a94ecf22d22a40c2073947965ebf74972e4b60388924a6e29. 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/b90fecd3-ba15-4996-97a2-fd21a86b3079.json and https://artists.proofprofile.net/proofs/artist/b90fecd3-ba15-4996-97a2-fd21a86b3079.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 0x9eac556cb84ba8e24b6bee7c53593e1fcacef5d2a6b68fff4fbb73fda39c08cc. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBYG52276001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d5f40fdd7f5ea5cfa06fe8672fbfad893dd165c1fb3a0309e6668075442f67. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBYG52276002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fb1096bf0acdba18901ebb97fcdfb51ce718c0bd881d03ccddc4a856ca3676. 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/GBYG52276003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d891a262f5676f0d7d5c97dd558f799e244d4b26eedd6a5c3e90dc9cb48954. 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/GBYG52276004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f1c56d773e71cc5bfb69e24d0bd202631ff32b40c17b2288085100e8208462. 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/GBYG52276005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc62ce7708f9c48e03f86263e87785bed9abf996e0b4ac6b0f29c0f78f8d86a. 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/GBYG52276006.
Intoxocation from the Jahvmonishi Leaves - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baa4318895fac47f8c47587c4535e55aa0aea5aabeebc3ebfc919416a252a37. 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/GBYG52070002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2375ee1f812e9a3289d07de2c07179102cc9ed67e3a0b99fa1685acead94e796. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBYG52070003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa0e4af876ec838ddf6249f5ac330765971c391505a47cc13208e80f9428966. 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/GBYG51847001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4150008a573119126a881f5db516f093f4ef67800fb7e32b33cc31785756bc83. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBYG51847002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bf7c9ec5d8300c87316f8ce7954c7b9af379adf06c0f6ee53a46f0f6c99463. 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/GBYG51847003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0315787b39264c2fc05724e670776af778f992e8869ad4becadeb1134e7b93ed. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/GBYG51847004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410c2981f283cab7161efe0bb313d01bd1925763283faa1bb7fffe51246c413c. 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/GBYG51847005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccee000c2555edb43b682ef44a055f7acb2b98d0816c6e4ba1bfb16b0735c873. 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/GBYG51847006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcefe90b53e45597b5d66150db068a29cd1ae7c125e7f38c44604bae2e2cbc6. 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/GBYG51847007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43790a6fc81f7957083b4ae601823ed01542b3aff3e36d11c1644de9221c3998. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBYG51847008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff1b8210ab0875d1f1608d9b689c3528536dbaf4d4c22db82d0e36addc3dc29. 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/GBYG51847009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a9b43d41815a944aa70816ee90768021cd4a7dccba9ba92b0fdaa5881bb6dd. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBYG51847010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1037ffc40a130bf2142873b53e0d06157ffed9353bc635d9b51e837a13adb71. 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/GBYG51737001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9678e96a644a314f3444042e0ffec62f895180844e8c016891b29137ac408e1d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBYG51737007.
Intoxication from the Jahvmonishi Leaves
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786863606c0f74186918a2d22b0ac73b9d5a672aa2e9fc193eba2efc20e0abde. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBYG51737002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043a8efd07642a46df957235df42fc8f119955665f444d98e6b4dd194eaebd9a. 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/GBYG51737008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8546dd56e77fc3f542ac46dfc092f829ebac3f885b1545ead4d24471a8efd7a1. 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/GBYG51737003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f326548e4c7440093202fe1563eaf3d7aa80b86d0aceefc33c8587f0deb127c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBYG51737009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff581f5bbfc395a6e0a5a3216ceb2fbc4d208f6093f8e6f2519f2b53acf69c7b. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/GBYG51737004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a11aed9d7f53ade448d666f1d527d108ec27207c072fdb58ba54537fe5b1ef0. 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/GBYG51737010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfabd22fc4d29ce2aa881d214f3a5d521b2b5d115620e09e874403ded2d772c. 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/GBYG51737005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207eecfae72d13a7789b3668bf387be2941f73ef730b1d3c9be849aeab13dd27. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBYG51737011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6308a95e94a75336a5f6f51aa863e52a8e26d7166d2d5c7ee9a7ed25fcf69165. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBYG51737006.
Echoes from the Other Side of the Mountain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac8a6801f3b95e180bf07a9e3e4f6d258cf01b0facded4acd51c47e5c79d8df. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/GBYG51737012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd5e5b3e2c61d4531c61c5205a84dbe9a8cf552d72a67620e558561d1621380. 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/GBYG51737013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004f8d95d2e30d79b4f1b63861ec84d633ecc35fc0e96fa0db3260fe3c413f26. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBYG51530001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc68fe1a61832146e638868e5ab27452e25d2978aba056e02d4a78067833005f. 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/GBYG51530002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be749979c7403dc75b7d5218d8f36b1428fd22d17eea7e0a9ed20f9cc1ba86c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBYG51530004.